/* * The contents of this file are subject to the terms * of the Common Development and Distribution License * (the "License"). You may not use this file except * in compliance with the License. * * You can obtain a copy of the license at * glassfish/bootstrap/legal/CDDLv1.0.txt or * https://glassfish.dev.java.net/public/CDDLv1.0.html. * See the License for the specific language governing * permissions and limitations under the License. * * When distributing Covered Code, include this CDDL * HEADER in each file and include the License file at * glassfish/bootstrap/legal/CDDLv1.0.txt. If applicable, * add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your * own identifying information: Portions Copyright [yyyy] * [name of copyright owner] */ // Copyright (c) 1998, 2006, Oracle. All rights reserved. package oracle.toplink.essentials.platform.database; import java.io.IOException; import java.io.Writer; import java.util.Hashtable; import oracle.toplink.essentials.exceptions.ValidationException; import oracle.toplink.essentials.expressions.ExpressionOperator; import oracle.toplink.essentials.internal.databaseaccess.FieldTypeDefinition; import oracle.toplink.essentials.queryframework.ValueReadQuery; /** * This platform provides H2 specific behaviour. * To enable this platform change the following setting in persistence.xml: *
* <property * name="toplink.target-database" * value="oracle.toplink.essentials.platform.database.H2Platform"/> ** In old versions of Glassfish, the property name is *
toplink.platform.class.name
.
* See also: https://glassfish.dev.java.net/issues/show_bug.cgi?id=4042
*
* @author Thomas Mueller
* @author Marcio Borges (http://www.marciowb.net/blog/2008_08_01_)
*/
public class H2Platform extends DatabasePlatform {
protected Hashtable buildFieldTypes() {
Hashtable fieldTypeMapping;
fieldTypeMapping = super.buildFieldTypes();
fieldTypeMapping.put(Boolean.class, new FieldTypeDefinition("TINYINT", false));
fieldTypeMapping.put(Integer.class, new FieldTypeDefinition("INTEGER", false));
fieldTypeMapping.put(Long.class, new FieldTypeDefinition("NUMERIC", 19));
fieldTypeMapping.put(Float.class, new FieldTypeDefinition("REAL", false));
fieldTypeMapping.put(Double.class, new FieldTypeDefinition("REAL", false));
fieldTypeMapping.put(Short.class, new FieldTypeDefinition("SMALLINT", false));
fieldTypeMapping.put(Byte.class, new FieldTypeDefinition("SMALLINT", false));
fieldTypeMapping.put(java.math.BigInteger.class, new FieldTypeDefinition("NUMERIC", 38));
fieldTypeMapping.put(java.math.BigDecimal.class, new FieldTypeDefinition("NUMERIC", 38).setLimits(38, -19, 19));
fieldTypeMapping.put(Number.class, new FieldTypeDefinition("NUMERIC", 38).setLimits(38, -19, 19));
fieldTypeMapping.put(Byte[].class, new FieldTypeDefinition("BINARY", false));
fieldTypeMapping.put(Character[].class, new FieldTypeDefinition("LONGVARCHAR", false));
fieldTypeMapping.put(byte[].class, new FieldTypeDefinition("BINARY", false));
fieldTypeMapping.put(char[].class, new FieldTypeDefinition("LONGVARCHAR", false));
fieldTypeMapping.put(java.sql.Blob.class, new FieldTypeDefinition("BINARY", false));
fieldTypeMapping.put(java.sql.Clob.class, new FieldTypeDefinition("LONGVARCHAR", false));
fieldTypeMapping.put(java.sql.Date.class, new FieldTypeDefinition("DATE", false));
fieldTypeMapping.put(java.sql.Time.class, new FieldTypeDefinition("TIME", false));
fieldTypeMapping.put(java.sql.Timestamp.class, new FieldTypeDefinition("TIMESTAMP", false));
return fieldTypeMapping;
}
public boolean isH2() {
return true;
}
public boolean supportsForeignKeyConstraints() {
return true;
}
public ValueReadQuery buildSelectQueryForNativeSequence(String seqName, Integer size) {
StringBuffer buff = new StringBuffer();
buff.append("SELECT MAX(NEXT VALUE FOR ");
buff.append(getQualifiedSequenceName(seqName));
buff.append(") FROM SYSTEM_RANGE(1, ");
buff.append(size);
buff.append(")");
String sql = buff.toString();
return new ValueReadQuery(sql);
}
public boolean supportsNativeSequenceNumbers() {
return true;
}
protected String getQualifiedSequenceName(String seqName) {
if (getTableQualifier().equals("")) {
return seqName;
}
return getTableQualifier() + "." + seqName;
}
public boolean supportsSelectForUpdateNoWait() {
return true;
}
protected ExpressionOperator todayOperator() {
return ExpressionOperator.simpleFunctionNoParentheses(ExpressionOperator.Today, "SYSDATE");
}
protected void initializePlatformOperators() {
super.initializePlatformOperators();
addOperator(ExpressionOperator.simpleMath(ExpressionOperator.Concat, "||"));
}
public boolean shouldUseJDBCOuterJoinSyntax() {
return false;
}
public boolean supportsSequenceObjects() {
return true;
}
public boolean supportsIdentity() {
return true;
}
public ValueReadQuery buildSelectQueryForIdentity() {
return new ValueReadQuery("SELECT IDENTITY()");
}
public void printFieldIdentityClause(Writer writer) throws ValidationException {
try {
writer.write(" IDENTITY");
} catch (final IOException ioException) {
throw ValidationException.fileError(ioException);
}
}
}