/*
* Copyright 2005 JBoss Inc
*
* Licensed 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 "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.drools.eclipse.flow.ruleflow.core;
import org.drools.eclipse.flow.common.editor.core.ElementConnection;
import org.drools.eclipse.flow.common.editor.core.ElementWrapper;
import org.eclipse.ui.views.properties.ComboBoxPropertyDescriptor;
import org.eclipse.ui.views.properties.IPropertyDescriptor;
import org.eclipse.ui.views.properties.TextPropertyDescriptor;
import org.jbpm.workflow.core.node.Join;
/**
* Wrapper for a join node.
*/
public class JoinWrapper extends AbstractNodeWrapper {
public static final int CHANGE_TYPE = 5;
private static final long serialVersionUID = 510l;
private transient IPropertyDescriptor[] descriptors;
public static final String TYPE = "type";
public static final String N = "N";
public JoinWrapper() {
setNode(new Join());
getJoin().setName("Join");
setDescriptors();
}
public Join getJoin() {
return (Join) getNode();
}
public boolean acceptsOutgoingConnection(ElementConnection connection, ElementWrapper target) {
return super.acceptsOutgoingConnection(connection, target)
&& getOutgoingConnections().isEmpty();
}
private void setDescriptors() {
descriptors = new IPropertyDescriptor[AbstractNodeWrapper.DESCRIPTORS.length + 1];
System.arraycopy(AbstractNodeWrapper.DESCRIPTORS, 0, descriptors, 0, AbstractNodeWrapper.DESCRIPTORS.length);
descriptors[descriptors.length - 1] =
new ComboBoxPropertyDescriptor(TYPE, "Type", new String[] { "", "AND", "XOR", "Discriminator", "n-of-m" });
}
public IPropertyDescriptor[] getPropertyDescriptors() {
if (getParent() != null && (getJoin().getType() == Join.TYPE_N_OF_M)) {
IPropertyDescriptor[] result = new IPropertyDescriptor[descriptors.length + 1];
System.arraycopy(descriptors, 0, result, 0, descriptors.length);
result[descriptors.length] = new TextPropertyDescriptor(N, "n");
return result;
}
return descriptors;
}
public Object getPropertyValue(Object id) {
if (TYPE.equals(id)) {
return new Integer(getJoin().getType());
}
if (N.equals(id)) {
return getJoin().getN() == null ? "" : getJoin().getN();
}
return super.getPropertyValue(id);
}
public void resetPropertyValue(Object id) {
if (TYPE.equals(id)) {
getJoin().setType(Join.TYPE_UNDEFINED);
notifyListeners(CHANGE_TYPE);
} else if (N.equals(id)) {
getJoin().setN(null);
} else {
super.resetPropertyValue(id);
}
}
public void setPropertyValue(Object id, Object value) {
if (TYPE.equals(id)) {
getJoin().setType(((Integer) value).intValue());
notifyListeners(CHANGE_TYPE);
} else if (N.equals(id)) {
getJoin().setN((String) value);
} else {
super.setPropertyValue(id, value);
}
}
}