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/*******************************************************************************
* Copyright (c) 2007, 2012 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0, which accompanies this distribution
* and is available at http://www.eclipse.org/legal/epl-v10.html.
*
* Contributors:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.jpa.core.internal.context.java;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jpt.common.utility.Filter;
import org.eclipse.jpt.common.utility.internal.StringTools;
import org.eclipse.jpt.common.utility.internal.Tools;
import org.eclipse.jpt.common.utility.internal.iterables.EmptyIterable;
import org.eclipse.jpt.common.utility.internal.iterables.FilteringIterable;
import org.eclipse.jpt.jpa.core.context.DbGenerator;
import org.eclipse.jpt.jpa.core.context.SequenceGenerator;
import org.eclipse.jpt.jpa.core.context.java.JavaGeneratorContainer;
import org.eclipse.jpt.jpa.core.context.java.JavaSequenceGenerator;
import org.eclipse.jpt.jpa.core.context.orm.EntityMappings;
import org.eclipse.jpt.jpa.core.resource.java.SequenceGeneratorAnnotation;
import org.eclipse.jpt.jpa.db.Schema;
/**
* Java sequence generator
*/
public abstract class AbstractJavaSequenceGenerator<A extends SequenceGeneratorAnnotation>
extends AbstractJavaDbGenerator<A>
implements JavaSequenceGenerator
{
protected String specifiedSequenceName;
protected String defaultSequenceName;
protected AbstractJavaSequenceGenerator(JavaGeneratorContainer parent, A generatorAnnotation) {
super(parent, generatorAnnotation);
this.specifiedSequenceName = generatorAnnotation.getSequenceName();
}
// ********** synchronize/update **********
@Override
public void synchronizeWithResourceModel() {
super.synchronizeWithResourceModel();
this.setSpecifiedSequenceName_(this.generatorAnnotation.getSequenceName());
}
@Override
public void update() {
super.update();
this.setDefaultSequenceName(this.buildDefaultSequenceName());
}
// ********** initial value **********
@Override
protected int buildDefaultInitialValue() {
return DEFAULT_INITIAL_VALUE;
}
// ********** sequence name **********
public String getSequenceName() {
return (this.specifiedSequenceName != null) ? this.specifiedSequenceName : this.defaultSequenceName;
}
public String getSpecifiedSequenceName() {
return this.specifiedSequenceName;
}
public void setSpecifiedSequenceName(String name) {
this.generatorAnnotation.setSequenceName(name);
this.setSpecifiedSequenceName_(name);
}
protected void setSpecifiedSequenceName_(String name) {
String old = this.specifiedSequenceName;
this.specifiedSequenceName = name;
this.firePropertyChanged(SPECIFIED_SEQUENCE_NAME_PROPERTY, old, name);
}
public String getDefaultSequenceName() {
return this.defaultSequenceName;
}
protected void setDefaultSequenceName(String name) {
String old = this.defaultSequenceName;
this.defaultSequenceName = name;
this.firePropertyChanged(DEFAULT_SEQUENCE_NAME_PROPERTY, old, name);
}
protected String buildDefaultSequenceName() {
return null; // TODO the default sequence name is determined by the runtime provider...
}
// ********** Java completion proposals **********
/**
* called if the database is connected:
* sequenceName
*/
@Override
protected Iterable<String> getConnectedJavaCompletionProposals(int pos, Filter<String> filter, CompilationUnit astRoot) {
Iterable<String> result = super.getConnectedJavaCompletionProposals(pos, filter, astRoot);
if (result != null) {
return result;
}
if (this.sequenceNameTouches(pos)) {
return this.getJavaCandidateSequences(filter);
}
return null;
}
protected boolean sequenceNameTouches(int pos) {
return this.generatorAnnotation.sequenceNameTouches(pos);
}
protected Iterable<String> getJavaCandidateSequences(Filter<String> filter) {
return StringTools.convertToJavaStringLiterals(this.getCandidateSequences(filter));
}
protected Iterable<String> getCandidateSequences(Filter<String> filter) {
return new FilteringIterable<String>(this.getCandidateSequences(), filter);
}
protected Iterable<String> getCandidateSequences() {
Schema dbSchema = this.getDbSchema();
return (dbSchema != null) ? dbSchema.getSortedSequenceIdentifiers() : EmptyIterable.<String> instance();
}
// ********** misc **********
public Class<SequenceGenerator> getType() {
return SequenceGenerator.class;
}
// ********** validation **********
@Override
protected boolean isEquivalentTo(DbGenerator generator) {
return super.isEquivalentTo(generator)
&& this.isEquivalentTo((SequenceGenerator) generator);
}
protected boolean isEquivalentTo(SequenceGenerator generator) {
return Tools.valuesAreEqual(this.specifiedSequenceName, generator.getSpecifiedSequenceName());
}
// ********** metadata conversion **********
public void convertTo(EntityMappings entityMappings) {
entityMappings.addSequenceGenerator().convertFrom(this);
}
public void delete() {
this.getParent().removeSequenceGenerator();
}
}
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