/* | |
* Licensed to the Apache Software Foundation (ASF) under one | |
* or more contributor license agreements. See the NOTICE file | |
* 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 | |
* "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.apache.uima.pear.insd.edit.vars; | |
import java.util.HashSet; | |
import java.util.Iterator; | |
import java.util.Set; | |
import java.util.Vector; | |
/** | |
* | |
* Represents a list of environment variable to be displayed in a table | |
* | |
* | |
* | |
*/ | |
public class VarValList { | |
public Vector tableRows = new Vector(10); | |
private Set changeListeners = new HashSet(); | |
/** | |
* Constructor | |
*/ | |
public VarValList() { | |
super(); | |
this.initData(); | |
} | |
/* | |
* Initialize the table data. | |
*/ | |
private void initData() { | |
} | |
/** | |
* Returns a vector of VarVal objects | |
*/ | |
public Vector getTableRows() { | |
return tableRows; | |
} | |
/** | |
* Adds a new table Row | |
*/ | |
public boolean addTableRow(VarVal tableRow) { | |
if (!isDuplicate(tableRow)) { | |
tableRows.add(tableRow); | |
return true; | |
} else | |
return false; | |
} | |
/** | |
* Adds a sample tableRow to the table | |
*/ | |
public boolean addTableRow() { | |
VarVal tableRow = new VarVal("New_Variable", "Value"); | |
if (!isDuplicate(tableRow)) { | |
tableRows.add(tableRows.size(), tableRow); | |
Iterator iterator = changeListeners.iterator(); | |
while (iterator.hasNext()) | |
((IVarValListViewer) iterator.next()).addTableRow(tableRow); | |
return true; | |
} else | |
return false; | |
} | |
private boolean isDuplicate(VarVal tableRow) { | |
boolean duplicate = false; | |
String varName = tableRow.getVarName(); | |
Iterator itr = tableRows.iterator(); | |
while (itr.hasNext()) { | |
VarVal vv = (VarVal) itr.next(); | |
if (vv.getVarName().equals(varName)) | |
duplicate = true; | |
} | |
return duplicate; | |
} | |
/** | |
* @param tableRow | |
*/ | |
public void removeTableRow(VarVal tableRow) { | |
tableRows.remove(tableRow); | |
Iterator iterator = changeListeners.iterator(); | |
while (iterator.hasNext()) | |
((IVarValListViewer) iterator.next()).removeTableRow(tableRow); | |
} | |
/** | |
* Notify listeners by calling their updateTableRow() method | |
* | |
* @param tableRow | |
*/ | |
public void tableRowChanged(VarVal tableRow) { | |
Iterator iterator = changeListeners.iterator(); | |
while (iterator.hasNext()) | |
((IVarValListViewer) iterator.next()).updateTableRow(tableRow); | |
} | |
/** | |
* Removes a Change Listener | |
* | |
* @param viewer | |
* A Chnage listener | |
*/ | |
public void removeChangeListener(IVarValListViewer viewer) { | |
changeListeners.remove(viewer); | |
} | |
/** | |
* | |
* Adds a change listener | |
* | |
* @param viewer | |
*/ | |
public void addChangeListener(IVarValListViewer viewer) { | |
changeListeners.add(viewer); | |
} | |
} |