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* Licensed to the Apache Software Foundation (ASF) under one
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* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
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* KIND, either express or implied. See the License for the
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package org.apache.cayenne.modeler.editor.dbentity;
import javax.swing.JPanel;
import org.apache.cayenne.map.DbAttribute;
import org.apache.cayenne.map.DbEntity;
import org.apache.cayenne.map.event.EntityEvent;
import org.apache.cayenne.modeler.ProjectController;
import org.apache.cayenne.modeler.undo.ChangePKGeneratorUndoableEdit;
public abstract class PKGeneratorPanel extends JPanel {
protected ProjectController mediator;
public PKGeneratorPanel(ProjectController mediator) {
this.mediator = mediator;
}
/**
* Called by parent when DbEntity changes, regardless of whether this panel is visible
* or not. Another case when this method is invoked is when entity tab changes and
* this panel may need a refresh.
*/
public abstract void setDbEntity(DbEntity entity);
/**
* Called by parent when the panel becomes visible.
*/
public void onInit(DbEntity entity) {
ChangePKGeneratorUndoableEdit edit = new ChangePKGeneratorUndoableEdit(entity);
edit.captureOldState();
onInitInternal(entity);
edit.captureNewState();
if(edit.hasRealChange()) {
mediator.getApplication().getUndoManager().addEdit(edit);
}
}
protected abstract void onInitInternal(DbEntity entity);
protected void resetStrategy(
DbEntity entity,
boolean resetCustomSequence,
boolean resetDBGenerated) {
boolean hasChanges = false;
if (resetCustomSequence && entity.getPrimaryKeyGenerator() != null) {
entity.setPrimaryKeyGenerator(null);
hasChanges = true;
}
if (resetDBGenerated) {
for (DbAttribute a : entity.getPrimaryKeys()) {
if (a.isGenerated()) {
a.setGenerated(false);
hasChanges = true;
}
}
}
if (hasChanges) {
mediator.fireDbEntityEvent(new EntityEvent(this, entity));
}
}
}