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/*******************************************************************************
* Copyright (c) 2008, 2009 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.ui.internal.details.db;
import org.eclipse.jpt.common.ui.internal.widgets.Pane;
import org.eclipse.jpt.common.utility.internal.iterables.EmptyIterable;
import org.eclipse.jpt.common.utility.model.value.PropertyValueModel;
import org.eclipse.jpt.jpa.core.JpaNode;
import org.eclipse.jpt.jpa.db.Schema;
import org.eclipse.swt.widgets.Composite;
/**
* This combo-box displays a schema's sequences.
*/
public abstract class SequenceCombo<T extends JpaNode>
extends DatabaseObjectCombo<T>
{
public SequenceCombo(
Pane<?> parentPane,
PropertyValueModel<? extends T> subjectHolder,
Composite parent) {
super(parentPane, subjectHolder, parent);
}
@Override
protected Iterable<String> getValues_() {
Schema dbSchema = this.getDbSchema();
return (dbSchema != null) ? dbSchema.getSortedSequenceIdentifiers() : EmptyIterable.<String>instance();
}
protected Schema getDbSchema() {
return (this.getSubject() == null) ? null : this.getDbSchema_();
}
/**
* Assume the subject is not null.
*/
protected abstract Schema getDbSchema_();
}
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