org.jooq.util.derby.DerbyDatabase Maven / Gradle / Ivy
/**
* Copyright (c) 2009-2011, Lukas Eder, [email protected]
* All rights reserved.
*
* This software is licensed to you under the Apache License, Version 2.0
* (the "License"); You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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 "jOOQ" 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
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
package org.jooq.util.derby;
import static org.jooq.impl.Factory.field;
import static org.jooq.util.derby.sys.tables.Sysconglomerates.SYSCONGLOMERATES;
import static org.jooq.util.derby.sys.tables.Sysconstraints.SYSCONSTRAINTS;
import static org.jooq.util.derby.sys.tables.Syskeys.SYSKEYS;
import static org.jooq.util.derby.sys.tables.Sysschemas.SYSSCHEMAS;
import static org.jooq.util.derby.sys.tables.Syssequences.SYSSEQUENCES;
import static org.jooq.util.derby.sys.tables.Systables.SYSTABLES;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.jooq.Field;
import org.jooq.Record;
import org.jooq.impl.Factory;
import org.jooq.util.AbstractDatabase;
import org.jooq.util.ArrayDefinition;
import org.jooq.util.ColumnDefinition;
import org.jooq.util.DataTypeDefinition;
import org.jooq.util.DefaultDataTypeDefinition;
import org.jooq.util.DefaultRelations;
import org.jooq.util.DefaultSequenceDefinition;
import org.jooq.util.EnumDefinition;
import org.jooq.util.PackageDefinition;
import org.jooq.util.RoutineDefinition;
import org.jooq.util.SequenceDefinition;
import org.jooq.util.TableDefinition;
import org.jooq.util.UDTDefinition;
import org.jooq.util.derby.sys.SysFactory;
import org.jooq.util.derby.sys.tables.Sysconglomerates;
import org.jooq.util.derby.sys.tables.Sysconstraints;
import org.jooq.util.derby.sys.tables.Syskeys;
import org.jooq.util.derby.sys.tables.Sysschemas;
import org.jooq.util.derby.sys.tables.Syssequences;
import org.jooq.util.derby.sys.tables.Systables;
/**
* @author Lukas Eder
*/
public class DerbyDatabase extends AbstractDatabase {
@Override
protected void loadPrimaryKeys(DefaultRelations relations) throws SQLException {
for (Record record : fetchKeys("P")) {
String key = record.getValue(Sysconstraints.CONSTRAINTNAME);
String tableName = record.getValue(Systables.TABLENAME);
String descriptor = record.getValueAsString(Sysconglomerates.DESCRIPTOR);
TableDefinition table = getTable(tableName);
if (table != null) {
for (int index : decode(descriptor)) {
relations.addPrimaryKey(key, table.getColumn(index));
}
}
}
}
/**
* {@inheritDoc}
*/
@Override
protected void loadUniqueKeys(DefaultRelations relations) throws SQLException {
for (Record record : fetchKeys("U")) {
String key = record.getValue(Sysconstraints.CONSTRAINTNAME);
String tableName = record.getValue(Systables.TABLENAME);
String descriptor = record.getValueAsString(Sysconglomerates.DESCRIPTOR);
TableDefinition table = getTable(tableName);
if (table != null) {
for (int index : decode(descriptor)) {
relations.addUniqueKey(key, table.getColumn(index));
}
}
}
}
private List fetchKeys(String constraintType) {
return create().select(
Systables.TABLENAME,
Systables.TABLEID,
Sysconstraints.CONSTRAINTNAME,
Sysconglomerates.DESCRIPTOR)
.from(SYSCONGLOMERATES)
.join(SYSKEYS)
.on(Syskeys.CONGLOMERATEID.equal(Sysconglomerates.CONGLOMERATEID))
.join(SYSCONSTRAINTS)
.on(Sysconstraints.CONSTRAINTID.equal(Syskeys.CONSTRAINTID))
.join(SYSTABLES)
.on(Systables.TABLEID.equal(Sysconglomerates.TABLEID))
.where(Sysconstraints.TYPE.equal(constraintType))
.fetch();
}
@Override
protected void loadForeignKeys(DefaultRelations relations) throws SQLException {
Field foreignKey = field("fc.constraintname", String.class);
Field foreignKeyTable = field("ft.tablename", String.class);
Field foreignKeyDescriptor = field("fg.descriptor");
Field uniqueKey = field("pc.constraintname", String.class);
for (Record record : create().select(
foreignKey,
foreignKeyTable,
foreignKeyDescriptor,
uniqueKey)
.from("sys.sysconstraints fc")
.join("sys.sysforeignkeys f ").on("f.constraintid = fc.constraintid")
.join("sys.sysconglomerates fg").on("fg.conglomerateid = f.conglomerateid")
.join("sys.systables ft").on("ft.tableid = fg.tableid")
.join("sys.sysconstraints pc").on("pc.constraintid = f.keyconstraintid")
.where("fc.type = 'F'")
.fetch()) {
String foreignKeyName = record.getValue(foreignKey);
String foreignKeyTableName = record.getValue(foreignKeyTable);
List foreignKeyIndexes = decode(record.getValueAsString(foreignKeyDescriptor));
String uniqueKeyName = record.getValue(uniqueKey);
TableDefinition referencingTable = getTable(foreignKeyTableName);
if (referencingTable != null) {
for (int i = 0; i < foreignKeyIndexes.size(); i++) {
ColumnDefinition column = referencingTable.getColumn(foreignKeyIndexes.get(i));
relations.addForeignKey(foreignKeyName, uniqueKeyName, column);
}
}
}
}
/*
* Unfortunately the descriptor interface is not exposed publicly Hence, the
* toString() method is used and its results are parsed The results are
* something like UNIQUE BTREE (index1, index2, ... indexN)
*/
private List decode(String descriptor) {
List result = new ArrayList();
Pattern p = Pattern.compile(".*?\\((.*?)\\)");
Matcher m = p.matcher(descriptor);
while (m.find()) {
String[] split = m.group(1).split(",");
if (split != null) {
for (String index : split) {
result.add(Integer.valueOf(index.trim()) - 1);
}
}
}
return result;
}
@Override
protected List getSequences0() throws SQLException {
List result = new ArrayList();
for (Record record : create().select(
Syssequences.SEQUENCENAME,
Syssequences.SEQUENCEDATATYPE)
.from(SYSSEQUENCES)
.join(SYSSCHEMAS)
.on(Sysschemas.SCHEMAID.equal(Syssequences.SCHEMAID))
.where(Sysschemas.SCHEMANAME.equal(getInputSchema()))
.orderBy(Syssequences.SEQUENCENAME)
.fetch()) {
DataTypeDefinition type = new DefaultDataTypeDefinition(this,
record.getValue(Syssequences.SEQUENCEDATATYPE),
0, 0);
result.add(new DefaultSequenceDefinition(
getSchema(), record.getValueAsString(Syssequences.SEQUENCENAME), type));
}
return result;
}
@Override
protected List getTables0() throws SQLException {
List result = new ArrayList();
for (Record record : create().select(Systables.TABLENAME, Systables.TABLEID)
.from(SYSTABLES)
.join(SYSSCHEMAS)
.on(Systables.SCHEMAID.equal(Sysschemas.SCHEMAID))
.where(Sysschemas.SCHEMANAME.equal(getInputSchema()))
.fetch()) {
String name = record.getValue(Systables.TABLENAME);
String id = record.getValue(Systables.TABLEID);
DerbyTableDefinition table = new DerbyTableDefinition(this, name, id);
result.add(table);
}
return result;
}
@Override
protected List getEnums0() throws SQLException {
List result = new ArrayList();
return result;
}
@Override
protected List getUDTs0() throws SQLException {
List result = new ArrayList();
return result;
}
@Override
protected List getArrays0() throws SQLException {
List result = new ArrayList();
return result;
}
@Override
protected List getRoutines0() throws SQLException {
List result = new ArrayList();
return result;
}
@Override
protected List getPackages0() throws SQLException {
List result = new ArrayList();
return result;
}
@Override
public Factory create() {
return new SysFactory(getConnection());
}
}
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