org.jooq.util.db2.DB2Database 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.db2;
import static org.jooq.impl.Factory.concat;
import static org.jooq.impl.Factory.val;
import static org.jooq.util.db2.syscat.tables.Datatypes.DATATYPES;
import static org.jooq.util.db2.syscat.tables.Functions.FUNCNAME;
import static org.jooq.util.db2.syscat.tables.Functions.FUNCSCHEMA;
import static org.jooq.util.db2.syscat.tables.Functions.FUNCTIONS;
import static org.jooq.util.db2.syscat.tables.Keycoluse.KEYCOLUSE;
import static org.jooq.util.db2.syscat.tables.Procedures.PROCEDURES;
import static org.jooq.util.db2.syscat.tables.Procedures.PROCNAME;
import static org.jooq.util.db2.syscat.tables.Procedures.PROCSCHEMA;
import static org.jooq.util.db2.syscat.tables.References.REFERENCES;
import static org.jooq.util.db2.syscat.tables.Sequences.SEQUENCES;
import static org.jooq.util.db2.syscat.tables.Tabconst.TABCONST;
import static org.jooq.util.db2.syscat.tables.Tables.TABLES;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import org.jooq.Record;
import org.jooq.SelectQuery;
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.db2.syscat.SyscatFactory;
import org.jooq.util.db2.syscat.tables.Datatypes;
import org.jooq.util.db2.syscat.tables.Keycoluse;
import org.jooq.util.db2.syscat.tables.References;
import org.jooq.util.db2.syscat.tables.Sequences;
import org.jooq.util.db2.syscat.tables.Tabconst;
import org.jooq.util.db2.syscat.tables.Tables;
/**
* DB2 implementation of {@link AbstractDatabase}
*
* @author Espen Stromsnes
*/
public class DB2Database extends AbstractDatabase {
@Override
public Factory create() {
return new SyscatFactory(getConnection());
}
@Override
protected void loadPrimaryKeys(DefaultRelations relations) throws SQLException {
for (Record record : fetchKeys("P")) {
String key = record.getValue("constraint_name", String.class);
String tableName = record.getValue(Keycoluse.TABNAME);
String columnName = record.getValue(Keycoluse.COLNAME);
TableDefinition table = getTable(tableName);
if (table != null) {
relations.addPrimaryKey(key, table.getColumn(columnName));
}
}
}
@Override
protected void loadUniqueKeys(DefaultRelations relations) throws SQLException {
for (Record record : fetchKeys("U")) {
String key = record.getValue("constraint_name", String.class);
String tableName = record.getValue(Keycoluse.TABNAME);
String columnName = record.getValue(Keycoluse.COLNAME);
TableDefinition table = getTable(tableName);
if (table != null) {
relations.addUniqueKey(key, table.getColumn(columnName));
}
}
}
private List fetchKeys(String constraintType) {
return create().select(
concat(Keycoluse.TABNAME, val("__"), Keycoluse.CONSTNAME).as("constraint_name"),
Keycoluse.TABNAME,
Keycoluse.COLNAME)
.from(KEYCOLUSE)
.join(TABCONST)
.on(Keycoluse.TABSCHEMA.equal(Tabconst.TABSCHEMA))
.and(Keycoluse.CONSTNAME.equal(Tabconst.CONSTNAME))
.where(Keycoluse.TABSCHEMA.equal(getInputSchema()))
.and(Tabconst.TYPE.equal(constraintType))
.orderBy(
Keycoluse.TABNAME.asc(),
Keycoluse.CONSTNAME.asc(),
Keycoluse.COLSEQ.asc())
.fetch();
}
@Override
protected void loadForeignKeys(DefaultRelations relations) throws SQLException {
for (Record record : create().select(
concat(References.TABNAME, val("__"), References.CONSTNAME).as("constraint_name"),
References.TABNAME,
References.FK_COLNAMES,
concat(References.REFTABNAME, val("__"), References.REFKEYNAME).as("referenced_constraint_name"))
.from(REFERENCES)
.where(References.TABSCHEMA.equal(getInputSchema()))
.fetch()) {
String foreignKey = record.getValue("constraint_name", String.class);
String foreignKeyTableName = record.getValue(References.TABNAME);
String foreignKeyColumn = record.getValue(References.FK_COLNAMES);
String uniqueKey = record.getValue("referenced_constraint_name", String.class);
TableDefinition foreignKeyTable = getTable(foreignKeyTableName);
if (foreignKeyTable != null) {
/*
* If a foreign key consists of several columns, all the columns
* are contained in a single database column (delimited with
* space) here we split the combined string into individual
* columns
*/
String[] referencingColumnNames = foreignKeyColumn.trim().split("[ ]+");
for (int i = 0; i < referencingColumnNames.length; i++) {
ColumnDefinition column = foreignKeyTable.getColumn(referencingColumnNames[i]);
relations.addForeignKey(foreignKey, uniqueKey, column);
}
}
}
}
@Override
protected List getSequences0() throws SQLException {
List result = new ArrayList();
for (Record record : create().select(
Sequences.SEQNAME,
Sequences.SEQTYPE,
Datatypes.TYPENAME,
Sequences.PRECISION)
.from(SEQUENCES)
.join(DATATYPES)
.on(Sequences.DATATYPEID.equal(Datatypes.TYPEID.cast(Integer.class)))
.where(Sequences.SEQSCHEMA.equal(getInputSchema()))
.orderBy(Sequences.SEQNAME)
.fetch()) {
DataTypeDefinition type = new DefaultDataTypeDefinition(this,
record.getValue(Datatypes.TYPENAME),
record.getValue(Sequences.PRECISION),
0);
result.add(new DefaultSequenceDefinition(getSchema(),
record.getValue(Sequences.SEQNAME), type));
}
return result;
}
@Override
protected List getTables0() throws SQLException {
List result = new ArrayList();
SelectQuery q = create().selectQuery();
q.addFrom(TABLES);
q.addSelect(Tables.TABNAME);
q.addConditions(Tables.TABSCHEMA.equal(getInputSchema()));
q.addConditions(Tables.TYPE.in("T", "V")); // tables and views
q.addOrderBy(Tables.TABNAME);
q.execute();
for (Record record : q.getResult()) {
String name = record.getValue(Tables.TABNAME);
String comment = "";
DB2TableDefinition table = new DB2TableDefinition(this, name, comment);
result.add(table);
}
return result;
}
@Override
protected List getRoutines0() throws SQLException {
List result = new ArrayList();
for (Record record : create()
.select().from(create()
.select(PROCNAME.as("name"), val(true).as("isProcedure"))
.from(PROCEDURES)
.where(PROCSCHEMA.equal(getInputSchema()))
.unionAll(create()
.select(FUNCNAME.as("name"), val(false).as("isProcedure"))
.from(FUNCTIONS)
.where(FUNCSCHEMA.equal(getInputSchema()))))
.orderBy(Factory.literal(1))
.fetch()) {
result.add(new DB2RoutineDefinition(this,
record.getValueAsString("name"),
null,
record.getValueAsBoolean("isProcedure")));
}
return result;
}
@Override
protected List getPackages0() throws SQLException {
List result = new ArrayList();
return result;
}
@Override
protected List getEnums0() throws SQLException {
List result = new ArrayList();
return result;
}
@Override
protected List getUDTs0() throws SQLException {
List result = new ArrayList();
for (String name : create().selectDistinct(Datatypes.TYPENAME)
.from(DATATYPES)
.where(Datatypes.TYPESCHEMA.equal(getInputSchema()))
.orderBy(Datatypes.TYPENAME).fetch(Datatypes.TYPENAME)) {
result.add(new DB2UDTDefinition(this, name, null));
}
return result;
}
@Override
protected List getArrays0() throws SQLException {
List result = new ArrayList();
return result;
}
}
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