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/* Copyright (c) 2001-2019, The HSQL Development Group
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the HSQL Development Group nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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package org.hsqldb;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import org.hsqldb.HsqlNameManager.HsqlName;
import org.hsqldb.error.Error;
import org.hsqldb.error.ErrorCode;
import org.hsqldb.lib.HashMappedList;
import org.hsqldb.lib.HsqlArrayList;
import org.hsqldb.lib.Iterator;
import org.hsqldb.lib.MultiValueHashMap;
import org.hsqldb.lib.OrderedHashSet;
import org.hsqldb.lib.StringConverter;
import org.hsqldb.lib.WrapperIterator;
import org.hsqldb.navigator.RowIterator;
import org.hsqldb.rights.Grantee;
import org.hsqldb.types.Charset;
import org.hsqldb.types.Collation;
import org.hsqldb.types.Type;
/**
* Manages all SCHEMA related database objects
*
* @author Fred Toussi (fredt@users dot sourceforge.net)
* @version 2.5.0
* @since 1.8.0
*/
public class SchemaManager {
Database database;
HsqlName defaultSchemaHsqlName;
HashMappedList schemaMap = new HashMappedList();
MultiValueHashMap referenceMap = new MultiValueHashMap();
int defaultTableType = TableBase.MEMORY_TABLE;
long schemaChangeTimestamp;
HsqlName[] catalogNameArray;
//
ReadWriteLock lock = new ReentrantReadWriteLock();
Lock readLock = lock.readLock();
Lock writeLock = lock.writeLock();
//
Table dualTable;
public Table dataChangeTable;
public SchemaManager(Database database) {
this.database = database;
defaultSchemaHsqlName = SqlInvariants.INFORMATION_SCHEMA_HSQLNAME;
catalogNameArray = new HsqlName[]{ database.getCatalogName() };
Schema schema =
new Schema(SqlInvariants.INFORMATION_SCHEMA_HSQLNAME,
SqlInvariants.INFORMATION_SCHEMA_HSQLNAME.owner);
schemaMap.put(schema.getName().name, schema);
try {
schema.charsetLookup.add(Charset.SQL_TEXT, false);
schema.charsetLookup.add(Charset.SQL_IDENTIFIER_CHARSET, false);
schema.charsetLookup.add(Charset.SQL_CHARACTER, false);
schema.collationLookup.add(Collation.getDefaultInstance(), false);
schema.collationLookup.add(
Collation.getDefaultIgnoreCaseInstance(), false);
schema.typeLookup.add(TypeInvariants.CARDINAL_NUMBER, false);
schema.typeLookup.add(TypeInvariants.YES_OR_NO, false);
schema.typeLookup.add(TypeInvariants.CHARACTER_DATA, false);
schema.typeLookup.add(TypeInvariants.SQL_IDENTIFIER, false);
schema.typeLookup.add(TypeInvariants.TIME_STAMP, false);
schema.typeLookup.add(TypeInvariants.NCNAME, false);
schema.typeLookup.add(TypeInvariants.URI, false);
} catch (HsqlException e) {}
}
public void setSchemaChangeTimestamp() {
schemaChangeTimestamp = database.txManager.getGlobalChangeTimestamp();
}
public long getSchemaChangeTimestamp() {
return schemaChangeTimestamp;
}
// pre-defined
public HsqlName getSQLJSchemaHsqlName() {
return SqlInvariants.SQLJ_SCHEMA_HSQLNAME;
}
// SCHEMA management
public void createPublicSchema() {
writeLock.lock();
try {
HsqlName name = database.nameManager.newHsqlName(null,
SqlInvariants.PUBLIC_SCHEMA, SchemaObject.SCHEMA);
Schema schema =
new Schema(name, database.getGranteeManager().getDBARole());
defaultSchemaHsqlName = schema.getName();
schemaMap.put(schema.getName().name, schema);
} finally {
writeLock.unlock();
}
}
/**
* Creates a schema belonging to the given grantee.
*/
public void createSchema(HsqlName name, Grantee owner) {
writeLock.lock();
try {
SqlInvariants.checkSchemaNameNotSystem(name.name);
Schema schema = new Schema(name, owner);
schemaMap.add(name.name, schema);
} finally {
writeLock.unlock();
}
}
public void dropSchema(Session session, String name, boolean cascade) {
writeLock.lock();
try {
Schema schema = (Schema) schemaMap.get(name);
if (schema == null) {
throw Error.error(ErrorCode.X_42501, name);
}
if (SqlInvariants.isLobsSchemaName(name)) {
throw Error.error(ErrorCode.X_42503, name);
}
if (!cascade && !schema.isEmpty()) {
throw Error.error(ErrorCode.X_2B000);
}
OrderedHashSet externalReferences = new OrderedHashSet();
getCascadingReferencesToSchema(schema.getName(),
externalReferences);
removeSchemaObjects(externalReferences);
Iterator tableIterator =
schema.schemaObjectIterator(SchemaObject.TABLE);
while (tableIterator.hasNext()) {
Table table = ((Table) tableIterator.next());
Constraint[] list = table.getFKConstraints();
for (int i = 0; i < list.length; i++) {
Constraint constraint = list[i];
if (constraint.getMain().getSchemaName()
!= schema.getName()) {
constraint.getMain().removeConstraint(
constraint.getMainName().name);
removeReferencesFrom(constraint);
}
}
removeTable(session, table);
}
Iterator sequenceIterator =
schema.schemaObjectIterator(SchemaObject.SEQUENCE);
while (sequenceIterator.hasNext()) {
NumberSequence sequence =
((NumberSequence) sequenceIterator.next());
database.getGranteeManager().removeDbObject(
sequence.getName());
}
schema.release();
schemaMap.remove(name);
if (defaultSchemaHsqlName.name.equals(name)) {
schema = new Schema(defaultSchemaHsqlName,
database.getGranteeManager().getDBARole());
defaultSchemaHsqlName = schema.getName();
schemaMap.put(schema.getName().name, schema);
} else {
HsqlName schemaName = schema.getName();
// these are called last and in this particular order
database.getUserManager().removeSchemaReference(schemaName);
database.getSessionManager().removeSchemaReference(schemaName);
}
} finally {
writeLock.unlock();
}
}
public void renameSchema(HsqlName name, HsqlName newName) {
writeLock.lock();
try {
Schema schema = (Schema) schemaMap.get(name.name);
Schema exists = (Schema) schemaMap.get(newName.name);
if (schema == null) {
throw Error.error(ErrorCode.X_42501, name.name);
}
if (exists != null) {
throw Error.error(ErrorCode.X_42504, newName.name);
}
SqlInvariants.checkSchemaNameNotSystem(name.name);
SqlInvariants.checkSchemaNameNotSystem(newName.name);
int index = schemaMap.getIndex(name.name);
schema.getName().rename(newName);
schemaMap.set(index, newName.name, schema);
} finally {
writeLock.unlock();
}
}
public void release() {
writeLock.lock();
try {
Iterator it = schemaMap.values().iterator();
while (it.hasNext()) {
Schema schema = (Schema) it.next();
schema.release();
}
} finally {
writeLock.unlock();
}
}
public String[] getSchemaNamesArray() {
readLock.lock();
try {
String[] array = new String[schemaMap.size()];
schemaMap.toKeysArray(array);
return array;
} finally {
readLock.unlock();
}
}
public Schema[] getAllSchemas() {
readLock.lock();
try {
Schema[] objects = new Schema[schemaMap.size()];
schemaMap.toValuesArray(objects);
return objects;
} finally {
readLock.unlock();
}
}
public HsqlName getUserSchemaHsqlName(String name) {
readLock.lock();
try {
Schema schema = (Schema) schemaMap.get(name);
if (schema == null) {
throw Error.error(ErrorCode.X_3F000, name);
}
if (schema.getName()
== SqlInvariants.INFORMATION_SCHEMA_HSQLNAME) {
throw Error.error(ErrorCode.X_3F000, name);
}
return schema.getName();
} finally {
readLock.unlock();
}
}
public Grantee toSchemaOwner(String name) {
readLock.lock();
try {
Schema schema = (Schema) schemaMap.get(name);
return schema == null ? null
: schema.getOwner();
} finally {
readLock.unlock();
}
}
public HsqlName getDefaultSchemaHsqlName() {
return defaultSchemaHsqlName;
}
public void setDefaultSchemaHsqlName(HsqlName name) {
defaultSchemaHsqlName = name;
}
public boolean schemaExists(String name) {
readLock.lock();
try {
return schemaMap.containsKey(name);
} finally {
readLock.unlock();
}
}
public HsqlName findSchemaHsqlName(String name) {
readLock.lock();
try {
Schema schema = ((Schema) schemaMap.get(name));
if (schema == null) {
return null;
}
return schema.getName();
} finally {
readLock.unlock();
}
}
/**
* If schemaName is null, return the default schema name, else return
* the HsqlName object for the schema. If schemaName does not exist,
* throw.
*/
public HsqlName getSchemaHsqlName(String name) {
if (name == null) {
return defaultSchemaHsqlName;
}
readLock.lock();
try {
Schema schema = ((Schema) schemaMap.get(name));
if (schema == null) {
throw Error.error(ErrorCode.X_3F000, name);
}
return schema.getName();
} finally {
readLock.unlock();
}
}
/**
* Same as above, but return string
*/
public String getSchemaName(String name) {
return getSchemaHsqlName(name).name;
}
public Schema findSchema(String name) {
readLock.lock();
try {
return ((Schema) schemaMap.get(name));
} finally {
readLock.unlock();
}
}
/**
* drop all schemas with the given authorisation
*/
public void dropSchemas(Session session, Grantee grantee,
boolean cascade) {
writeLock.lock();
try {
HsqlArrayList list = getSchemas(grantee);
Iterator it = list.iterator();
while (it.hasNext()) {
Schema schema = (Schema) it.next();
dropSchema(session, schema.getName().name, cascade);
}
} finally {
writeLock.unlock();
}
}
public HsqlArrayList getSchemas(Grantee grantee) {
readLock.lock();
try {
HsqlArrayList list = new HsqlArrayList();
Iterator it = schemaMap.values().iterator();
while (it.hasNext()) {
Schema schema = (Schema) it.next();
if (grantee.equals(schema.getOwner())) {
list.add(schema);
}
}
return list;
} finally {
readLock.unlock();
}
}
public boolean hasSchemas(Grantee grantee) {
readLock.lock();
try {
Iterator it = schemaMap.values().iterator();
while (it.hasNext()) {
Schema schema = (Schema) it.next();
if (grantee.equals(schema.getOwner())) {
return true;
}
}
return false;
} finally {
readLock.unlock();
}
}
/**
* Returns an HsqlArrayList containing references to all non-system
* tables and views. This includes all tables and views registered with
* this Database.
*/
public HsqlArrayList getAllTables(boolean withLobTables) {
readLock.lock();
try {
HsqlArrayList alltables = new HsqlArrayList();
String[] schemas = getSchemaNamesArray();
for (int i = 0; i < schemas.length; i++) {
String name = schemas[i];
if (!withLobTables && SqlInvariants.isLobsSchemaName(name)) {
continue;
}
if (SqlInvariants.isSystemSchemaName(name)) {
continue;
}
HashMappedList current = getTables(name);
alltables.addAll(current.values());
}
return alltables;
} finally {
readLock.unlock();
}
}
public HashMappedList getTables(String schema) {
readLock.lock();
try {
Schema temp = (Schema) schemaMap.get(schema);
return temp.tableList;
} finally {
readLock.unlock();
}
}
public HsqlName[] getCatalogNameArray() {
return catalogNameArray;
}
public HsqlName[] getCatalogAndBaseTableNames() {
readLock.lock();
try {
OrderedHashSet names = new OrderedHashSet();
HsqlArrayList tables = getAllTables(false);
for (int i = 0; i < tables.size(); i++) {
Table table = (Table) tables.get(i);
if (!table.isTemp()) {
names.add(table.getName());
}
}
names.add(database.getCatalogName());
HsqlName[] array = new HsqlName[names.size()];
names.toArray(array);
return array;
} finally {
readLock.unlock();
}
}
public HsqlName[] getCatalogAndBaseTableNames(HsqlName name) {
if (name == null) {
return catalogNameArray;
}
readLock.lock();
try {
switch (name.type) {
case SchemaObject.SCHEMA : {
if (findSchemaHsqlName(name.name) == null) {
return catalogNameArray;
}
OrderedHashSet names = new OrderedHashSet();
names.add(database.getCatalogName());
HashMappedList list = getTables(name.name);
for (int i = 0; i < list.size(); i++) {
names.add(((SchemaObject) list.get(i)).getName());
}
HsqlName[] array = new HsqlName[names.size()];
names.toArray(array);
return array;
}
case SchemaObject.GRANTEE : {
return catalogNameArray;
}
case SchemaObject.INDEX :
case SchemaObject.CONSTRAINT :
default :
}
SchemaObject object = findSchemaObject(name.name,
name.schema.name,
name.type);
if (object == null) {
return catalogNameArray;
}
HsqlName parent = object.getName().parent;
OrderedHashSet references = getReferencesTo(object.getName());
OrderedHashSet names = new OrderedHashSet();
names.add(database.getCatalogName());
if (parent != null) {
SchemaObject parentObject = findSchemaObject(parent.name,
parent.schema.name, parent.type);
if (parentObject != null
&& parentObject.getName().type == SchemaObject.TABLE) {
names.add(parentObject.getName());
}
}
if (object.getName().type == SchemaObject.TABLE) {
names.add(object.getName());
}
for (int i = 0; i < references.size(); i++) {
HsqlName reference = (HsqlName) references.get(i);
if (reference.type == SchemaObject.TABLE) {
Table table = findUserTable(reference.name,
reference.schema.name);
if (table != null && !table.isTemp()) {
names.add(reference);
}
}
}
HsqlName[] array = new HsqlName[names.size()];
names.toArray(array);
return array;
} finally {
readLock.unlock();
}
}
private SchemaObjectSet getSchemaObjectSet(Schema schema, int type) {
SchemaObjectSet set = null;
switch (type) {
case SchemaObject.SEQUENCE :
set = schema.sequenceLookup;
break;
case SchemaObject.TABLE :
case SchemaObject.VIEW :
set = schema.tableLookup;
break;
case SchemaObject.CHARSET :
set = schema.charsetLookup;
break;
case SchemaObject.COLLATION :
set = schema.collationLookup;
break;
case SchemaObject.PROCEDURE :
set = schema.procedureLookup;
break;
case SchemaObject.FUNCTION :
set = schema.functionLookup;
break;
case SchemaObject.DOMAIN :
case SchemaObject.TYPE :
set = schema.typeLookup;
break;
case SchemaObject.INDEX :
set = schema.indexLookup;
break;
case SchemaObject.CONSTRAINT :
set = schema.constraintLookup;
break;
case SchemaObject.TRIGGER :
set = schema.triggerLookup;
break;
case SchemaObject.SPECIFIC_ROUTINE :
set = schema.specificRoutineLookup;
break;
case SchemaObject.REFERENCE :
set = schema.referenceLookup;
break;
default :
throw Error.runtimeError(ErrorCode.U_S0500, "SchemaObjectSet");
}
return set;
}
public void checkSchemaObjectNotExists(HsqlName name) {
readLock.lock();
try {
Schema schema = (Schema) schemaMap.get(name.schema.name);
SchemaObjectSet set = getSchemaObjectSet(schema, name.type);
set.checkAdd(name);
} finally {
readLock.unlock();
}
}
public Table getUserTable(HsqlName name) {
return getUserTable(name.name, name.schema.name);
}
/**
* Returns the specified user-defined table or view visible within the
* context of the specified Session.
* Throws if the table does not exist in the context.
*/
public Table getUserTable(String name, String schema) {
Table t = findUserTable(name, schema);
if (t == null) {
String longName = schema == null ? name
: schema + '.' + name;
throw Error.error(ErrorCode.X_42501, longName);
}
return t;
}
/**
* Returns the specified user-defined table or view visible within the
* context of the specified schema. It excludes system tables.
* Returns null if the table does not exist in the context.
*/
public Table findUserTable(String name, String schemaName) {
readLock.lock();
try {
Schema schema = (Schema) schemaMap.get(schemaName);
if (schema == null) {
return null;
}
int i = schema.tableList.getIndex(name);
if (i == -1) {
return null;
}
return (Table) schema.tableList.get(i);
} finally {
readLock.unlock();
}
}
/**
* Returns the specified session context table.
* Returns null if the table does not exist in the context.
*/
public Table findSessionTable(Session session, String name) {
return session.sessionContext.findSessionTable(name);
}
/**
* Drops the specified user-defined view or table from this Database object.
*
* The process of dropping a table or view includes:
*
* - checking that the specified Session's currently connected User has
* the right to perform this operation and refusing to proceed if not by
* throwing.
*
- checking for referential constraints that conflict with this
* operation and refusing to proceed if they exist by throwing.
* - removing the specified Table from this Database object.
*
- removing any exported foreign keys Constraint objects held by any
* tables referenced by the table to be dropped. This is especially
* important so that the dropped Table ceases to be referenced, eventually
* allowing its full garbage collection.
*
-
*
*
*
*
* @param session the connected context in which to perform this operation
* @param table if true and if the Table to drop does not exist, fail
* silently, else throw
* @param cascade true if the name argument refers to a View
*/
public void dropTableOrView(Session session, Table table,
boolean cascade) {
writeLock.lock();
try {
if (table.isView()) {
dropView(table, cascade);
} else {
dropTable(session, table, cascade);
}
} finally {
writeLock.unlock();
}
}
private void dropView(Table table, boolean cascade) {
Schema schema = (Schema) schemaMap.get(table.getSchemaName().name);
removeSchemaObject(table.getName(), cascade);
removeTableDependentReferences(table);
schema.triggerLookup.removeParent(table.getName());
}
private void dropTable(Session session, Table table, boolean cascade) {
Schema schema = (Schema) schemaMap.get(table.getSchemaName().name);
OrderedHashSet externalConstraints =
table.getDependentExternalConstraints();
OrderedHashSet externalReferences = new OrderedHashSet();
getCascadingReferencesTo(table.getName(), externalReferences);
if (!cascade) {
for (int i = 0; i < externalConstraints.size(); i++) {
Constraint c = (Constraint) externalConstraints.get(i);
HsqlName refname = c.getRefName();
if (c.getConstraintType()
== SchemaObject.ConstraintTypes.MAIN) {
throw Error.error(
ErrorCode.X_42533,
refname.getSchemaQualifiedStatementName());
}
}
if (!externalReferences.isEmpty()) {
int i = 0;
for (; i < externalReferences.size(); i++) {
HsqlName name = (HsqlName) externalReferences.get(i);
if (name.parent == table.getName()) {
continue;
}
throw Error.error(ErrorCode.X_42502,
name.getSchemaQualifiedStatementName());
}
}
}
OrderedHashSet tableSet = new OrderedHashSet();
OrderedHashSet constraintNameSet = new OrderedHashSet();
OrderedHashSet indexNameSet = new OrderedHashSet();
for (int i = 0; i < externalConstraints.size(); i++) {
Constraint c = (Constraint) externalConstraints.get(i);
Table t = c.getMain();
if (t != table) {
tableSet.add(t);
}
t = c.getRef();
if (t != table) {
tableSet.add(t);
}
constraintNameSet.add(c.getMainName());
constraintNameSet.add(c.getRefName());
indexNameSet.add(c.getRefIndex().getName());
}
OrderedHashSet uniqueConstraintNames =
table.getUniquePKConstraintNames();
TableWorks tw = new TableWorks(session, table);
tableSet = tw.dropConstraintsAndIndexes(tableSet, constraintNameSet,
indexNameSet);
tw.setNewTablesInSchema(tableSet);
tw.updateConstraints(tableSet, constraintNameSet);
removeSchemaObjects(externalReferences);
removeTableDependentReferences(table);
removeReferencesTo(uniqueConstraintNames);
removeReferencesTo(table.getName());
removeReferencesFrom(table);
schema.tableList.remove(table.getName().name);
schema.indexLookup.removeParent(table.getName());
schema.constraintLookup.removeParent(table.getName());
schema.triggerLookup.removeParent(table.getName());
removeTable(session, table);
recompileDependentObjects(tableSet);
}
private void removeTable(Session session, Table table) {
database.getGranteeManager().removeDbObject(table.getName());
table.releaseTriggers();
if (!table.isView() && table.hasLobColumn()) {
RowIterator it = table.rowIterator(session);
while (it.next()) {
Object[] data = it.getCurrent();
session.sessionData.adjustLobUsageCount(table, data, -1);
}
}
if (table.tableType == TableBase.TEMP_TABLE) {
Session[] sessions = database.sessionManager.getAllSessions();
for (int i = 0; i < sessions.length; i++) {
sessions[i].sessionData.persistentStoreCollection.removeStore(
table);
}
} else {
database.persistentStoreCollection.removeStore(table);
}
}
public void setTable(int index, Table table) {
writeLock.lock();
try {
Schema schema = (Schema) schemaMap.get(table.getSchemaName().name);
schema.tableList.set(index, table.getName().name, table);
} finally {
writeLock.unlock();
}
}
/**
* Returns index of a table or view in the HashMappedList that
* contains the table objects for this Database.
*
* @param table the Table object
* @return the index of the specified table or view, or -1 if not found
*/
public int getTableIndex(Table table) {
readLock.lock();
try {
Schema schema = (Schema) schemaMap.get(table.getSchemaName().name);
if (schema == null) {
return -1;
}
HsqlName name = table.getName();
return schema.tableList.getIndex(name.name);
} finally {
readLock.unlock();
}
}
public void recompileDependentObjects(OrderedHashSet tableSet) {
writeLock.lock();
try {
OrderedHashSet set = new OrderedHashSet();
for (int i = 0; i < tableSet.size(); i++) {
Table table = (Table) tableSet.get(i);
set.addAll(getReferencesTo(table.getName()));
}
Session session = database.sessionManager.getSysSession();
for (int i = 0; i < set.size(); i++) {
HsqlName name = (HsqlName) set.get(i);
switch (name.type) {
case SchemaObject.VIEW :
case SchemaObject.CONSTRAINT :
case SchemaObject.ASSERTION :
case SchemaObject.ROUTINE :
case SchemaObject.PROCEDURE :
case SchemaObject.FUNCTION :
case SchemaObject.SPECIFIC_ROUTINE :
case SchemaObject.TRIGGER :
SchemaObject object = getSchemaObject(name);
object.compile(session, null);
break;
default :
}
}
if (Error.TRACE) {
HsqlArrayList list = getAllTables(false);
for (int i = 0; i < list.size(); i++) {
Table t = (Table) list.get(i);
t.verifyConstraintsIntegrity();
}
}
} finally {
writeLock.unlock();
}
}
/**
* After addition or removal of columns and indexes all views that
* reference the table should be recompiled.
*/
public void recompileDependentObjects(Table table) {
writeLock.lock();
try {
OrderedHashSet set = new OrderedHashSet();
getCascadingReferencesTo(table.getName(), set);
Session session = database.sessionManager.getSysSession();
for (int i = 0; i < set.size(); i++) {
HsqlName name = (HsqlName) set.get(i);
switch (name.type) {
case SchemaObject.VIEW :
case SchemaObject.CONSTRAINT :
case SchemaObject.ASSERTION :
case SchemaObject.ROUTINE :
case SchemaObject.PROCEDURE :
case SchemaObject.FUNCTION :
case SchemaObject.SPECIFIC_ROUTINE :
case SchemaObject.TRIGGER :
SchemaObject object = getSchemaObject(name);
object.compile(session, null);
break;
default :
}
}
if (Error.TRACE) {
HsqlArrayList list = getAllTables(false);
for (int i = 0; i < list.size(); i++) {
Table t = (Table) list.get(i);
t.verifyConstraintsIntegrity();
}
}
} finally {
writeLock.unlock();
}
}
public Collation getCollation(Session session, String name,
String schemaName) {
Collation collation = null;
if (schemaName == null
|| SqlInvariants.INFORMATION_SCHEMA.equals(schemaName)) {
try {
collation = Collation.getCollation(name);
} catch (HsqlException e) {}
}
if (collation == null) {
schemaName = session.getSchemaName(schemaName);
collation = (Collation) getSchemaObject(name, schemaName,
SchemaObject.COLLATION);
}
return collation;
}
public NumberSequence findSequence(Session session, String name,
String schemaName) {
NumberSequence seq = getSequence(name,
session.getSchemaName(schemaName),
false);
if (seq == null && schemaName == null) {
schemaName = session.getSchemaName(null);
ReferenceObject ref = findSynonym(name, schemaName,
SchemaObject.SEQUENCE);
if (ref != null) {
seq = getSequence(ref.target.name, ref.target.schema.name,
false);
}
}
return seq;
}
public NumberSequence getSequence(String name, String schemaName,
boolean raise) {
readLock.lock();
try {
Schema schema = (Schema) schemaMap.get(schemaName);
if (schema != null) {
NumberSequence object =
(NumberSequence) schema.sequenceList.get(name);
if (object != null) {
return object;
}
}
if (raise) {
throw Error.error(ErrorCode.X_42501, name);
}
return null;
} finally {
readLock.unlock();
}
}
public Type getUserDefinedType(String name, String schemaName,
boolean raise) {
readLock.lock();
try {
Schema schema = (Schema) schemaMap.get(schemaName);
if (schema != null) {
SchemaObject object = schema.typeLookup.getObject(name);
if (object != null) {
return (Type) object;
}
}
if (raise) {
throw Error.error(ErrorCode.X_42501, name);
}
return null;
} finally {
readLock.unlock();
}
}
public Type findDomainOrUDT(Session session, String name, String prefix,
String prePrefix, String prePrePrefix) {
readLock.lock();
try {
Type type = (Type) findSchemaObject(session, name, prefix,
prePrefix, SchemaObject.TYPE);
return type;
} finally {
readLock.unlock();
}
}
public Type getDomain(String name, String schemaName, boolean raise) {
readLock.lock();
try {
Schema schema = (Schema) schemaMap.get(schemaName);
if (schema != null) {
SchemaObject object = schema.typeLookup.getObject(name);
if (object != null && ((Type) object).isDomainType()) {
return (Type) object;
}
}
if (raise) {
throw Error.error(ErrorCode.X_42501, name);
}
return null;
} finally {
readLock.unlock();
}
}
public Type getDistinctType(String name, String schemaName,
boolean raise) {
readLock.lock();
try {
Schema schema = (Schema) schemaMap.get(schemaName);
if (schema != null) {
SchemaObject object = schema.typeLookup.getObject(name);
if (object != null && ((Type) object).isDistinctType()) {
return (Type) object;
}
}
if (raise) {
throw Error.error(ErrorCode.X_42501, name);
}
return null;
} finally {
readLock.unlock();
}
}
public SchemaObject getSchemaObject(String name, String schemaName,
int type) {
readLock.lock();
try {
SchemaObject object = findSchemaObject(name, schemaName, type);
if (object == null) {
throw Error.error(SchemaObjectSet.getGetErrorCode(type), name);
}
return object;
} finally {
readLock.unlock();
}
}
public SchemaObject getCharacterSet(Session session, String name,
String schemaName) {
if (schemaName == null
|| SqlInvariants.INFORMATION_SCHEMA.equals(schemaName)) {
if (name.equals("SQL_IDENTIFIER")) {
return Charset.SQL_IDENTIFIER_CHARSET;
}
if (name.equals("SQL_TEXT")) {
return Charset.SQL_TEXT;
}
if (name.equals("LATIN1")) {
return Charset.LATIN1;
}
if (name.equals("ASCII_GRAPHIC")) {
return Charset.ASCII_GRAPHIC;
}
}
if (schemaName == null) {
schemaName = session.getSchemaName(null);
}
return getSchemaObject(name, schemaName, SchemaObject.CHARSET);
}
public Table findTable(Session session, String name, String prefix,
String prePrefix) {
Table t;
if (prefix == null) {
t = findSessionTable(session, name);
if (t != null) {
return t;
}
}
if (prePrefix == null) {
if (Tokens.T_SESSION.equals(prefix)) {
t = findSessionTable(session, name);
if (t != null) {
return t;
}
} else if (SqlInvariants.INFORMATION_SCHEMA.equals(prefix)
&& database.dbInfo != null) {
t = database.dbInfo.getSystemTable(session, name);
if (t != null) {
return t;
}
}
}
t = (Table) findSchemaObject(session, name, prefix, prePrefix,
SchemaObject.TABLE);
return t;
}
public SchemaObject findSchemaObject(Session session, String name,
String prefix, String prePrefix,
int type) {
SchemaObject object;
switch (type) {
case SchemaObject.TABLE :
case SchemaObject.ROUTINE :
case SchemaObject.PROCEDURE :
case SchemaObject.FUNCTION :
case SchemaObject.TYPE :
if (prefix == null) {
if (session.database.sqlSyntaxOra
|| session.database.sqlSyntaxDb2
|| session.isProcessingScript()) {
if (type == SchemaObject.TABLE
&& Tokens.T_DUAL.equals(name)) {
return dualTable;
}
}
if (type == SchemaObject.TABLE) {
// in future there will be a default module for
// session tables and variables and anonymous
// procedural sql blocks, which can eliminate this code
Table t = findSessionTable(session, name);
if (t != null) {
return t;
}
}
} else if (prePrefix == null) {
if (type == SchemaObject.TABLE
&& Tokens.T_MODULE.equals(prefix)) {
Table t = findSessionTable(session, name);
if (t != null) {
return t;
}
}
if (type == SchemaObject.TABLE
&& Tokens.T_SESSION.equals(prefix)) {
Table t = findSessionTable(session, name);
if (t != null) {
return t;
}
}
}
}
if (prefix == null) {
prefix = session.getSchemaName(null);
}
// catalog resolution here
if (prePrefix != null
&& !prePrefix.equals(database.getCatalogName().name)) {
return null;
}
if (type == SchemaObject.TABLE
&& SqlInvariants.INFORMATION_SCHEMA.equals(prefix)
&& database.dbInfo != null) {
Table t = database.dbInfo.getSystemTable(session, name);
if (t != null) {
return t;
}
}
return findSchemaObject(name, prefix, type);
}
public ReferenceObject findSynonym(String name, String schemaName,
int type) {
Schema schema = (Schema) schemaMap.get(schemaName);
if (schema == null) {
return null;
}
ReferenceObject reference = schema.findReference(name, type);
return reference;
}
public SchemaObject findAnySchemaObjectForSynonym(String name,
String schemaName) {
readLock.lock();
try {
Schema schema = (Schema) schemaMap.get(schemaName);
if (schema == null) {
return null;
}
return schema.findAnySchemaObjectForSynonym(name);
} finally {
readLock.unlock();
}
}
public SchemaObject findSchemaObject(String name, String schemaName,
int type) {
readLock.lock();
try {
Schema schema = (Schema) schemaMap.get(schemaName);
if (schema == null) {
return null;
}
return schema.findSchemaObject(name, type);
} finally {
readLock.unlock();
}
}
// INDEX management
/**
* Returns the table that has an index with the given name and schema.
*/
Table findUserTableForIndex(Session session, String name,
String schemaName) {
readLock.lock();
try {
Schema schema = (Schema) schemaMap.get(schemaName);
HsqlName indexName = schema.indexLookup.getName(name);
if (indexName == null) {
return null;
}
return findUserTable(indexName.parent.name, schemaName);
} finally {
readLock.unlock();
}
}
/**
* Drops the index with the specified name.
*/
void dropIndex(Session session, HsqlName name) {
writeLock.lock();
try {
Table t = getUserTable(name.parent.name, name.parent.schema.name);
TableWorks tw = new TableWorks(session, t);
tw.dropIndex(name.name);
} finally {
writeLock.unlock();
}
}
/**
* Drops the constraint with the specified name.
*/
void dropConstraint(Session session, HsqlName name, boolean cascade) {
writeLock.lock();
try {
Table t = getUserTable(name.parent.name, name.parent.schema.name);
TableWorks tw = new TableWorks(session, t);
tw.dropConstraint(name.name, cascade);
} finally {
writeLock.unlock();
}
}
void removeDependentObjects(HsqlName name) {
writeLock.lock();
try {
Schema schema = (Schema) schemaMap.get(name.schema.name);
schema.indexLookup.removeParent(name);
schema.constraintLookup.removeParent(name);
schema.triggerLookup.removeParent(name);
} finally {
writeLock.unlock();
}
}
/**
* Removes any foreign key Constraint objects (exported keys) held by any
* tables referenced by the specified table.
*
* This method is called as the last step of a successful call to
* dropTable() in order to ensure that the dropped Table ceases to be
* referenced when enforcing referential integrity.
*
* @param toDrop The table to which other tables may be holding keys.
* This is a table that is in the process of being dropped.
*/
void removeExportedKeys(Table toDrop) {
writeLock.lock();
try {
// toDrop.schema may be null because it is not registered
Schema schema =
(Schema) schemaMap.get(toDrop.getSchemaName().name);
for (int i = 0; i < schema.tableList.size(); i++) {
Table table = (Table) schema.tableList.get(i);
Constraint[] constraints = table.getConstraints();
for (int j = constraints.length - 1; j >= 0; j--) {
Table refTable = constraints[j].getRef();
if (toDrop == refTable) {
table.removeConstraint(j);
}
}
}
} finally {
writeLock.unlock();
}
}
public Iterator databaseObjectIterator(String schemaName, int type) {
readLock.lock();
try {
Schema schema = (Schema) schemaMap.get(schemaName);
return schema.schemaObjectIterator(type);
} finally {
readLock.unlock();
}
}
public Iterator databaseObjectIterator(int type) {
readLock.lock();
try {
Iterator it = schemaMap.values().iterator();
Iterator objects = new WrapperIterator();
while (it.hasNext()) {
int targetType = type;
if (type == SchemaObject.ROUTINE) {
targetType = SchemaObject.FUNCTION;
}
Schema temp = (Schema) it.next();
SchemaObjectSet set = temp.getObjectSet(targetType);
Object[] values;
if (set.map.size() != 0) {
values = new Object[set.map.size()];
set.map.valuesToArray(values);
objects = new WrapperIterator(objects,
new WrapperIterator(values));
}
if (type == SchemaObject.ROUTINE) {
set = temp.getObjectSet(SchemaObject.PROCEDURE);
if (set.map.size() != 0) {
values = new Object[set.map.size()];
set.map.valuesToArray(values);
objects =
new WrapperIterator(objects,
new WrapperIterator(values));
}
}
}
return objects;
} finally {
readLock.unlock();
}
}
// references
private void addReferencesFrom(SchemaObject object) {
OrderedHashSet set = object.getReferences();
HsqlName name = object.getName();
if (object instanceof Routine) {
name = ((Routine) object).getSpecificName();
}
if (set == null) {
return;
}
for (int i = 0; i < set.size(); i++) {
HsqlName referenced = (HsqlName) set.get(i);
referenceMap.put(referenced, name);
}
}
private void removeReferencesTo(OrderedHashSet set) {
for (int i = 0; i < set.size(); i++) {
HsqlName referenced = (HsqlName) set.get(i);
referenceMap.remove(referenced);
}
}
private void removeReferencesTo(HsqlName referenced) {
referenceMap.remove(referenced);
}
private void removeReferencesFrom(SchemaObject object) {
HsqlName name = object.getName();
OrderedHashSet set = object.getReferences();
if (object instanceof Routine) {
name = ((Routine) object).getSpecificName();
}
if (set == null) {
return;
}
for (int i = 0; i < set.size(); i++) {
HsqlName referenced = (HsqlName) set.get(i);
referenceMap.remove(referenced, name);
}
}
private void removeTableDependentReferences(Table table) {
OrderedHashSet mainSet = table.getReferencesForDependents();
for (int i = 0; i < mainSet.size(); i++) {
HsqlName name = (HsqlName) mainSet.get(i);
SchemaObject object = null;
switch (name.type) {
case SchemaObject.CONSTRAINT :
object = table.getConstraint(name.name);
break;
case SchemaObject.TRIGGER :
object = table.getTrigger(name.name);
break;
case SchemaObject.COLUMN :
object = table.getColumn(table.getColumnIndex(name.name));
break;
default :
continue;
}
removeReferencesFrom(object);
}
}
public OrderedHashSet getReferencesTo(HsqlName object) {
readLock.lock();
try {
OrderedHashSet set = new OrderedHashSet();
Iterator it = referenceMap.get(object);
while (it.hasNext()) {
HsqlName name = (HsqlName) it.next();
set.add(name);
}
return set;
} finally {
readLock.unlock();
}
}
public OrderedHashSet getReferencesTo(HsqlName table, HsqlName column) {
readLock.lock();
try {
OrderedHashSet set = new OrderedHashSet();
Iterator it = referenceMap.get(table);
while (it.hasNext()) {
HsqlName name = (HsqlName) it.next();
SchemaObject object = getSchemaObject(name);
OrderedHashSet references = object.getReferences();
if (references.contains(column)) {
set.add(name);
}
}
it = referenceMap.get(column);
while (it.hasNext()) {
HsqlName name = (HsqlName) it.next();
set.add(name);
}
return set;
} finally {
readLock.unlock();
}
}
private boolean isReferenced(HsqlName object) {
writeLock.lock();
try {
return referenceMap.containsKey(object);
} finally {
writeLock.unlock();
}
}
//
public void getCascadingReferencesTo(HsqlName object, OrderedHashSet set) {
readLock.lock();
try {
OrderedHashSet newSet = new OrderedHashSet();
Iterator it = referenceMap.get(object);
while (it.hasNext()) {
HsqlName name = (HsqlName) it.next();
boolean added = set.add(name);
if (added) {
newSet.add(name);
}
}
for (int i = 0; i < newSet.size(); i++) {
HsqlName name = (HsqlName) newSet.get(i);
getCascadingReferencesTo(name, set);
}
} finally {
readLock.unlock();
}
}
public void getCascadingReferencesToSchema(HsqlName schema,
OrderedHashSet set) {
Iterator mainIterator = referenceMap.keySet().iterator();
while (mainIterator.hasNext()) {
HsqlName name = (HsqlName) mainIterator.next();
if (name.schema != schema) {
continue;
}
getCascadingReferencesTo(name, set);
}
for (int i = set.size() - 1; i >= 0; i--) {
HsqlName name = (HsqlName) set.get(i);
if (name.schema == schema) {
set.remove(i);
}
}
}
public MultiValueHashMap getReferencesToSchema(String schemaName) {
MultiValueHashMap map = new MultiValueHashMap();
Iterator mainIterator = referenceMap.keySet().iterator();
while (mainIterator.hasNext()) {
HsqlName name = (HsqlName) mainIterator.next();
if (!name.schema.name.equals(schemaName)) {
continue;
}
Iterator it = referenceMap.get(name);
while (it.hasNext()) {
map.put(name, it.next());
}
}
return map;
}
//
public HsqlName getSchemaObjectName(HsqlName schemaName, String name,
int type, boolean raise) {
readLock.lock();
try {
Schema schema = (Schema) schemaMap.get(schemaName.name);
SchemaObjectSet set = null;
if (schema == null) {
if (raise) {
throw Error.error(SchemaObjectSet.getGetErrorCode(type));
} else {
return null;
}
}
if (type == SchemaObject.ROUTINE) {
set = schema.functionLookup;
SchemaObject object = schema.functionLookup.getObject(name);
if (object == null) {
set = schema.procedureLookup;
object = schema.procedureLookup.getObject(name);
}
} else {
set = getSchemaObjectSet(schema, type);
}
if (raise) {
set.checkExists(name);
}
return set.getName(name);
} finally {
readLock.unlock();
}
}
public SchemaObject getSchemaObject(HsqlName name) {
readLock.lock();
try {
Schema schema = (Schema) schemaMap.get(name.schema.name);
if (schema == null) {
return null;
}
switch (name.type) {
case SchemaObject.SEQUENCE :
return (SchemaObject) schema.sequenceList.get(name.name);
case SchemaObject.TABLE :
case SchemaObject.VIEW :
return (SchemaObject) schema.tableList.get(name.name);
case SchemaObject.CHARSET :
return schema.charsetLookup.getObject(name.name);
case SchemaObject.COLLATION :
return schema.collationLookup.getObject(name.name);
case SchemaObject.PROCEDURE :
return schema.procedureLookup.getObject(name.name);
case SchemaObject.FUNCTION :
return schema.functionLookup.getObject(name.name);
case RoutineSchema.SPECIFIC_ROUTINE :
return schema.specificRoutineLookup.getObject(name.name);
case RoutineSchema.ROUTINE :
SchemaObject object =
schema.functionLookup.getObject(name.name);
if (object == null) {
object = schema.procedureLookup.getObject(name.name);
}
return object;
case SchemaObject.DOMAIN :
case SchemaObject.TYPE :
return schema.typeLookup.getObject(name.name);
case SchemaObject.TRIGGER : {
name = schema.triggerLookup.getName(name.name);
if (name == null) {
return null;
}
HsqlName tableName = name.parent;
Table table = (Table) schema.tableList.get(tableName.name);
return table.getTrigger(name.name);
}
case SchemaObject.CONSTRAINT : {
name = schema.constraintLookup.getName(name.name);
if (name == null) {
return null;
}
HsqlName tableName = name.parent;
Table table = (Table) schema.tableList.get(tableName.name);
return table.getConstraint(name.name);
}
case SchemaObject.ASSERTION :
return null;
case SchemaObject.INDEX :
name = schema.indexLookup.getName(name.name);
if (name == null) {
return null;
}
HsqlName tableName = name.parent;
Table table = (Table) schema.tableList.get(tableName.name);
return table.getUserIndex(name.name);
case SchemaObject.REFERENCE :
return schema.referenceLookup.getObject(name.name);
}
return null;
} finally {
readLock.unlock();
}
}
public void checkColumnIsReferenced(HsqlName tableName, HsqlName name) {
OrderedHashSet set = getReferencesTo(tableName, name);
if (!set.isEmpty()) {
HsqlName objectName = (HsqlName) set.get(0);
throw Error.error(ErrorCode.X_42502,
objectName.getSchemaQualifiedStatementName());
}
}
public void checkObjectIsReferenced(HsqlName name) {
OrderedHashSet set = getReferencesTo(name);
HsqlName refName = null;
for (int i = 0; i < set.size(); i++) {
refName = (HsqlName) set.get(i);
// except columns of same table
if (refName.parent != name) {
break;
}
refName = null;
}
if (refName == null) {
return;
}
if (name.type == SchemaObject.CONSTRAINT) {
return;
}
int errorCode = ErrorCode.X_42502;
if (refName.type == SchemaObject.ConstraintTypes.FOREIGN_KEY) {
errorCode = ErrorCode.X_42533;
}
throw Error.error(errorCode,
refName.getSchemaQualifiedStatementName());
}
public void checkSchemaNameCanChange(HsqlName name) {
readLock.lock();
try {
Iterator it = referenceMap.values().iterator();
HsqlName refName = null;
mainLoop:
while (it.hasNext()) {
refName = (HsqlName) it.next();
switch (refName.type) {
case SchemaObject.VIEW :
case SchemaObject.ROUTINE :
case SchemaObject.FUNCTION :
case SchemaObject.PROCEDURE :
case SchemaObject.TRIGGER :
case SchemaObject.SPECIFIC_ROUTINE :
if (refName.schema == name) {
break mainLoop;
}
break;
default :
}
refName = null;
}
if (refName == null) {
return;
}
throw Error.error(ErrorCode.X_42502,
refName.getSchemaQualifiedStatementName());
} finally {
readLock.unlock();
}
}
public void addSchemaObject(SchemaObject object) {
writeLock.lock();
try {
HsqlName name = object.getName();
Schema schema = (Schema) schemaMap.get(name.schema.name);
switch (name.type) {
case SchemaObject.TABLE : {
OrderedHashSet refs =
((Table) object).getReferencesForDependents();
for (int i = 0; i < refs.size(); i++) {
HsqlName ref = (HsqlName) refs.get(i);
switch (ref.type) {
case SchemaObject.COLUMN : {
int index =
((Table) object).findColumn(ref.name);
ColumnSchema column =
((Table) object).getColumn(index);
addSchemaObject(column);
break;
}
}
}
break;
}
case SchemaObject.COLUMN : {
OrderedHashSet refs = object.getReferences();
if (refs == null || refs.isEmpty()) {
return;
}
addReferencesFrom(object);
return;
}
}
schema.addSchemaObject(database.nameManager, object, false);
addReferencesFrom(object);
} finally {
writeLock.unlock();
}
}
public void removeSchemaObject(HsqlName name, boolean cascade) {
writeLock.lock();
try {
OrderedHashSet objectSet = new OrderedHashSet();
switch (name.type) {
case SchemaObject.ROUTINE :
case SchemaObject.PROCEDURE :
case SchemaObject.FUNCTION : {
RoutineSchema routine =
(RoutineSchema) getSchemaObject(name);
if (routine != null) {
Routine[] specifics = routine.getSpecificRoutines();
for (int i = 0; i < specifics.length; i++) {
getCascadingReferencesTo(
specifics[i].getSpecificName(), objectSet);
}
}
}
break;
case SchemaObject.SEQUENCE :
case SchemaObject.TABLE :
case SchemaObject.VIEW :
case SchemaObject.TYPE :
case SchemaObject.CHARSET :
case SchemaObject.COLLATION :
case SchemaObject.SPECIFIC_ROUTINE :
getCascadingReferencesTo(name, objectSet);
break;
case SchemaObject.DOMAIN :
OrderedHashSet set = getReferencesTo(name);
Iterator it = set.iterator();
while (it.hasNext()) {
HsqlName ref = (HsqlName) it.next();
if (ref.type == SchemaObject.COLUMN) {
it.remove();
}
}
if (!set.isEmpty()) {
HsqlName objectName = (HsqlName) set.get(0);
throw Error.error(
ErrorCode.X_42502,
objectName.getSchemaQualifiedStatementName());
}
break;
}
if (objectSet.isEmpty()) {
removeSchemaObject(name);
return;
}
if (!cascade) {
HsqlName objectName = (HsqlName) objectSet.get(0);
throw Error.error(
ErrorCode.X_42502,
objectName.getSchemaQualifiedStatementName());
}
objectSet.add(name);
removeSchemaObjects(objectSet);
} finally {
writeLock.unlock();
}
}
public void removeSchemaObjects(OrderedHashSet set) {
writeLock.lock();
try {
for (int i = 0; i < set.size(); i++) {
HsqlName name = (HsqlName) set.get(i);
if (name.parent != null) {
removeSchemaObject(name);
}
}
for (int i = 0; i < set.size(); i++) {
HsqlName name = (HsqlName) set.get(i);
if (name.parent == null) {
removeSchemaObject(name);
}
}
} finally {
writeLock.unlock();
}
}
public void removeSchemaObject(HsqlName name) {
writeLock.lock();
try {
Schema schema = (Schema) schemaMap.get(name.schema.name);
SchemaObject object = null;
SchemaObjectSet set = null;
switch (name.type) {
case SchemaObject.SEQUENCE :
set = schema.sequenceLookup;
object = set.getObject(name.name);
break;
case SchemaObject.TABLE :
case SchemaObject.VIEW : {
set = schema.tableLookup;
object = set.getObject(name.name);
break;
}
case SchemaObject.COLUMN : {
Table table = (Table) getSchemaObject(name.parent);
if (table != null) {
object =
table.getColumn(table.getColumnIndex(name.name));
}
break;
}
case SchemaObject.CHARSET :
set = schema.charsetLookup;
object = set.getObject(name.name);
break;
case SchemaObject.COLLATION :
set = schema.collationLookup;
object = set.getObject(name.name);
break;
case SchemaObject.PROCEDURE : {
set = schema.procedureLookup;
RoutineSchema routine =
(RoutineSchema) set.getObject(name.name);
object = routine;
Routine[] specifics = routine.getSpecificRoutines();
for (int i = 0; i < specifics.length; i++) {
removeSchemaObject(specifics[i].getSpecificName());
}
break;
}
case SchemaObject.FUNCTION : {
set = schema.functionLookup;
RoutineSchema routine =
(RoutineSchema) set.getObject(name.name);
object = routine;
Routine[] specifics = routine.getSpecificRoutines();
for (int i = 0; i < specifics.length; i++) {
removeSchemaObject(specifics[i].getSpecificName());
}
break;
}
case SchemaObject.SPECIFIC_ROUTINE : {
set = schema.specificRoutineLookup;
Routine routine = (Routine) set.getObject(name.name);
object = routine;
routine.routineSchema.removeSpecificRoutine(routine);
if (routine.routineSchema.getSpecificRoutines().length
== 0) {
removeSchemaObject(routine.getName());
}
break;
}
case SchemaObject.DOMAIN :
case SchemaObject.TYPE :
set = schema.typeLookup;
object = set.getObject(name.name);
break;
case SchemaObject.INDEX :
set = schema.indexLookup;
break;
case SchemaObject.CONSTRAINT : {
set = schema.constraintLookup;
if (name.parent.type == SchemaObject.TABLE) {
Table table =
(Table) schema.tableList.get(name.parent.name);
object = table.getConstraint(name.name);
table.removeConstraint(name.name);
} else if (name.parent.type == SchemaObject.DOMAIN) {
Type type = (Type) schema.typeLookup.getObject(
name.parent.name);
object =
type.userTypeModifier.getConstraint(name.name);
type.userTypeModifier.removeConstraint(name.name);
}
break;
}
case SchemaObject.TRIGGER : {
set = schema.triggerLookup;
Table table =
(Table) schema.tableList.get(name.parent.name);
object = table.getTrigger(name.name);
if (object != null) {
table.removeTrigger((TriggerDef) object);
}
break;
}
case SchemaObject.REFERENCE : {
set = schema.referenceLookup;
object = set.getObject(name.name);
break;
}
default :
throw Error.runtimeError(ErrorCode.U_S0500,
"SchemaManager");
}
if (object != null) {
database.getGranteeManager().removeDbObject(name);
removeReferencesFrom(object);
}
if (set != null) {
set.remove(name.name);
}
removeReferencesTo(name);
} finally {
writeLock.unlock();
}
}
public void renameSchemaObject(HsqlName name, HsqlName newName) {
writeLock.lock();
try {
if (name.schema != newName.schema) {
throw Error.error(ErrorCode.X_42505, newName.schema.name);
}
checkObjectIsReferenced(name);
Schema schema = (Schema) schemaMap.get(name.schema.name);
SchemaObjectSet set = getSchemaObjectSet(schema, name.type);
set.rename(name, newName);
} finally {
writeLock.unlock();
}
}
public void replaceReferences(SchemaObject oldObject,
SchemaObject newObject) {
writeLock.lock();
try {
removeReferencesFrom(oldObject);
addReferencesFrom(newObject);
} finally {
writeLock.unlock();
}
}
public String[] getSQLArray() {
readLock.lock();
try {
OrderedHashSet resolved = new OrderedHashSet();
OrderedHashSet unresolved = new OrderedHashSet();
HsqlArrayList list = new HsqlArrayList();
Iterator schemas = schemaMap.values().iterator();
schemas = schemaMap.values().iterator();
// build up set of simple objects
while (schemas.hasNext()) {
Schema schema = (Schema) schemas.next();
if (SqlInvariants.isSystemSchemaName(schema.getName().name)) {
continue;
}
if (SqlInvariants.isLobsSchemaName(schema.getName().name)) {
continue;
}
list.add(schema.getSQL());
schema.addSimpleObjects(unresolved);
}
// list all simple objects in refernece order
while (true) {
Iterator it = unresolved.iterator();
if (!it.hasNext()) {
break;
}
OrderedHashSet newResolved = new OrderedHashSet();
SchemaObjectSet.addAllSQL(resolved, unresolved, list, it,
newResolved);
unresolved.removeAll(newResolved);
if (newResolved.size() == 0) {
break;
}
}
schemas = schemaMap.values().iterator();
//
while (schemas.hasNext()) {
Schema schema = (Schema) schemas.next();
if (SqlInvariants.isLobsSchemaName(schema.getName().name)) {
continue;
}
if (SqlInvariants.isSystemSchemaName(schema.getName().name)) {
continue;
}
list.addAll(schema.getSQLArray(resolved, unresolved));
}
while (true) {
Iterator it = unresolved.iterator();
if (!it.hasNext()) {
break;
}
OrderedHashSet newResolved = new OrderedHashSet();
SchemaObjectSet.addAllSQL(resolved, unresolved, list, it,
newResolved);
unresolved.removeAll(newResolved);
if (newResolved.size() == 0) {
break;
}
}
Iterator it = unresolved.iterator();
while (it.hasNext()) {
SchemaObject object = (SchemaObject) it.next();
if (object instanceof Routine) {
list.add(((Routine) object).getSQLDeclaration());
}
}
it = unresolved.iterator();
while (it.hasNext()) {
SchemaObject object = (SchemaObject) it.next();
if (object instanceof Routine) {
list.add(((Routine) object).getSQLAlter());
} else {
list.add(object.getSQL());
}
}
it = unresolved.iterator();
while (it.hasNext()) {
SchemaObject object = (SchemaObject) it.next();
if (object instanceof ReferenceObject) {
list.add(object.getSQL());
}
}
schemas = schemaMap.values().iterator();
while (schemas.hasNext()) {
Schema schema = (Schema) schemas.next();
if (SqlInvariants.isLobsSchemaName(schema.getName().name)) {
continue;
}
if (SqlInvariants.isSystemSchemaName(schema.getName().name)) {
continue;
}
HsqlArrayList t = schema.getTriggerSQL();
if (t.size() > 0) {
list.add(Schema.getSetSchemaSQL(schema.getName()));
list.addAll(t);
}
}
schemas = schemaMap.values().iterator();
while (schemas.hasNext()) {
Schema schema = (Schema) schemas.next();
list.addAll(schema.getSequenceRestartSQL());
}
if (defaultSchemaHsqlName != null) {
StringBuilder sb = new StringBuilder();
sb.append(Tokens.T_SET).append(' ').append(Tokens.T_DATABASE);
sb.append(' ').append(Tokens.T_DEFAULT).append(' ');
sb.append(Tokens.T_INITIAL).append(' ').append(
Tokens.T_SCHEMA);
sb.append(' ').append(defaultSchemaHsqlName.statementName);
list.add(sb.toString());
}
String[] array = new String[list.size()];
list.toArray(array);
return array;
} finally {
readLock.unlock();
}
}
public String[] getTablePropsSQL(boolean withHeader) {
readLock.lock();
try {
HsqlArrayList tableList = getAllTables(false);
HsqlArrayList list = new HsqlArrayList();
for (int i = 0; i < tableList.size(); i++) {
Table t = (Table) tableList.get(i);
if (t.isText()) {
String[] ddl = t.getSQLForTextSource(withHeader);
list.addAll(ddl);
}
String ddl = t.getSQLForReadOnly();
if (ddl != null) {
list.add(ddl);
}
if (t.isCached()) {
ddl = t.getSQLForClustered();
if (ddl != null) {
list.add(ddl);
}
}
}
String[] array = new String[list.size()];
list.toArray(array);
return array;
} finally {
readLock.unlock();
}
}
public String[] getTableSpaceSQL() {
readLock.lock();
try {
HsqlArrayList tableList = getAllTables(false);
HsqlArrayList list = new HsqlArrayList();
for (int i = 0; i < tableList.size(); i++) {
Table t = (Table) tableList.get(i);
if (t.isCached()) {
String ddl = t.getSQLForTableSpace();
if (ddl != null) {
list.add(ddl);
}
}
}
String[] array = new String[list.size()];
list.toArray(array);
return array;
} finally {
readLock.unlock();
}
}
public String[] getIndexRootsSQL() {
readLock.lock();
try {
Session sysSession = database.sessionManager.getSysSession();
long[][] rootsArray = getIndexRoots(sysSession);
HsqlArrayList tableList = getAllTables(true);
HsqlArrayList list = new HsqlArrayList();
for (int i = 0; i < rootsArray.length; i++) {
Table table = (Table) tableList.get(i);
if (rootsArray[i] != null && rootsArray[i].length > 0
&& rootsArray[i][0] != -1) {
String ddl = table.getIndexRootsSQL(rootsArray[i]);
list.add(ddl);
}
}
String[] array = new String[list.size()];
list.toArray(array);
return array;
} finally {
readLock.unlock();
}
}
public String[] getCommentsSQL() {
readLock.lock();
try {
HsqlArrayList tableList = getAllTables(false);
HsqlArrayList list = new HsqlArrayList();
StringBuilder sb = new StringBuilder();
for (int i = 0; i < tableList.size(); i++) {
Table table = (Table) tableList.get(i);
if (table.getTableType() == Table.INFO_SCHEMA_TABLE) {
continue;
}
int colCount = table.getColumnCount();
for (int j = 0; j < colCount; j++) {
ColumnSchema column = table.getColumn(j);
if (column.getName().comment == null) {
continue;
}
sb.setLength(0);
sb.append(Tokens.T_COMMENT).append(' ').append(
Tokens.T_ON);
sb.append(' ').append(Tokens.T_COLUMN).append(' ');
sb.append(
table.getName().getSchemaQualifiedStatementName());
sb.append('.').append(column.getName().statementName);
sb.append(' ').append(Tokens.T_IS).append(' ');
sb.append(
StringConverter.toQuotedString(
column.getName().comment, '\'', true));
list.add(sb.toString());
}
if (table.getName().comment == null) {
continue;
}
sb.setLength(0);
sb.append(Tokens.T_COMMENT).append(' ').append(Tokens.T_ON);
sb.append(' ').append(Tokens.T_TABLE).append(' ');
sb.append(table.getName().getSchemaQualifiedStatementName());
sb.append(' ').append(Tokens.T_IS).append(' ');
sb.append(
StringConverter.toQuotedString(
table.getName().comment, '\'', true));
list.add(sb.toString());
}
Iterator it = databaseObjectIterator(SchemaObject.ROUTINE);
while (it.hasNext()) {
SchemaObject object = (SchemaObject) it.next();
if (object.getName().comment == null) {
continue;
}
sb.setLength(0);
sb.append(Tokens.T_COMMENT).append(' ').append(Tokens.T_ON);
sb.append(' ').append(Tokens.T_ROUTINE).append(' ');
sb.append(object.getName().getSchemaQualifiedStatementName());
sb.append(' ').append(Tokens.T_IS).append(' ');
sb.append(
StringConverter.toQuotedString(
object.getName().comment, '\'', true));
list.add(sb.toString());
}
String[] array = new String[list.size()];
list.toArray(array);
return array;
} finally {
readLock.unlock();
}
}
long[][] tempIndexRoots;
public void setTempIndexRoots(long[][] roots) {
tempIndexRoots = roots;
}
public long[][] getIndexRoots(Session session) {
readLock.lock();
try {
if (tempIndexRoots != null) {
long[][] roots = tempIndexRoots;
tempIndexRoots = null;
return roots;
}
HsqlArrayList allTables = getAllTables(true);
HsqlArrayList list = new HsqlArrayList();
for (int i = 0, size = allTables.size(); i < size; i++) {
Table t = (Table) allTables.get(i);
if (t.getTableType() == TableBase.CACHED_TABLE) {
long[] roots = t.getIndexRootsArray();
list.add(roots);
} else {
list.add(null);
}
}
long[][] array = new long[list.size()][];
list.toArray(array);
return array;
} finally {
readLock.unlock();
}
}
/**
* called after the completion of defrag
*/
public void setIndexRoots(long[][] roots) {
readLock.lock();
try {
HsqlArrayList allTables =
database.schemaManager.getAllTables(true);
for (int i = 0, size = allTables.size(); i < size; i++) {
Table t = (Table) allTables.get(i);
if (t.getTableType() == TableBase.CACHED_TABLE) {
long[] rootsArray = roots[i];
if (rootsArray != null) {
t.setIndexRoots(rootsArray);
}
}
}
} finally {
readLock.unlock();
}
}
public void setDefaultTableType(int type) {
defaultTableType = type;
}
public int getDefaultTableType() {
return defaultTableType;
}
public void createSystemTables() {
dualTable = TableUtil.newSingleColumnTable(database,
SqlInvariants.DUAL_TABLE_HSQLNAME, TableBase.SYSTEM_TABLE,
SqlInvariants.DUAL_COLUMN_HSQLNAME, Type.SQL_VARCHAR);
dualTable.insertSys(database.sessionManager.getSysSession(),
dualTable.getRowStore(null), new Object[]{ "X" });
dualTable.setDataReadOnly(true);
Type[] columnTypes = new Type[] {
Type.SQL_BIGINT, Type.SQL_BIGINT, Type.SQL_BIGINT,
TypeInvariants.SQL_IDENTIFIER, TypeInvariants.SQL_IDENTIFIER,
Type.SQL_BOOLEAN
};
HsqlName tableName = database.nameManager.getSubqueryTableName();
HashMappedList columnList = new HashMappedList();
for (int i = 0; i < columnTypes.length; i++) {
HsqlName name = HsqlNameManager.getAutoColumnName(i + 1);
ColumnSchema column = new ColumnSchema(name, columnTypes[i], true,
false, null);
columnList.add(name.name, column);
}
dataChangeTable = new TableDerived(database, tableName,
TableBase.CHANGE_SET_TABLE,
columnTypes, columnList,
new int[]{ 0 });
dataChangeTable.createIndexForColumns(null, new int[]{ 1 });
}
}