Hi,
I've rewritten the database connector of HSQL to support some features
of HSQL verion 1.8. It adds support for identity columns an foreign
keys. Unique columns are still a problem.
Best regards
Oliver Kykal
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* // Copyright (c) 1998, 2007, Oracle. All rights reserved.
*
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can obtain
* a copy of the License at
https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [year]
* [name of copyright owner]"
*
* Contributor(s):
*
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package oracle.toplink.essentials.platform.database;
import java.io.IOException;
import java.io.StringWriter;
import java.io.Writer;
import java.util.*;
import oracle.toplink.essentials.exceptions.ValidationException;
import oracle.toplink.essentials.internal.databaseaccess.*;
import oracle.toplink.essentials.internal.sessions.AbstractSession;
import oracle.toplink.essentials.queryframework.ValueReadQuery;
import oracle.toplink.essentials.tools.schemaframework.FieldDefinition;
/**
* <p><b>Purpose</b>: Provides HSQL specific behaviour.
*
* @since TOPLink/Java 4.5
*/
public class HSQLPlatform extends DatabasePlatform {
public HSQLPlatform() {
System.out.println("LECK MICH!");
}
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));
return fieldTypeMapping;
}
public boolean isHSQL() {
return false;
}
@Override
public boolean supportsNativeSequenceNumbers() {
return true;
}
@Override
public boolean shouldNativeSequenceAcquireValueAfterInsert() {
return true;
}
public ValueReadQuery buildSelectQueryForNativeSequence() {
ValueReadQuery selectQuery = new ValueReadQuery();
StringWriter writer = new StringWriter();
writer.write("CALL IDENTITY()");
selectQuery.setSQLString(writer.toString());
return selectQuery;
}
@Override
public void printFieldUnique(Writer writer, boolean isUnique, AbstractSession session, String qualifiedFieldName) throws IOException {
// hier muss irgendwas rein
}
// @Override
// public void printFieldTypeSize(Writer writer, FieldDefinition field, FieldTypeDefinition fieldType, AbstractSession session,
// String qualifiedFieldName) throws IOException {
// super.printFieldTypeSize(writer, field, fieldType, session, qualifiedFieldName);
// if (field.isUnique()) {
// String constraint = field.getConstraint();
// StringBuffer buffer;
// if (constraint == null) {
// buffer = new StringBuffer();
// } else {
// buffer = new StringBuffer(constraint);
// }
//
// buffer.append(", ");
// buffer.append("CONSTRAINT UQ_").append(field.getName()).append(" UNIQUE " + field.getName());
// field.setConstraint(buffer.toString());
// }
// }
//
/**
* INTERNAL:
* Append the receiver's field 'identity' constraint clause to a writer.
*/
public void printFieldIdentityClause(Writer writer) throws ValidationException {
try {
writer.write(" IDENTITY");
} catch (IOException ioException) {
throw ValidationException.fileError(ioException);
}
}
/**
* INTERNAL:
* HSQL 1.8 does the ALTER TABLE method of create foreign key constraints
*/
public boolean supportsForeignKeyConstraints() {
return true;
}
}