/**
* 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.hadoop.eclipse.preferences;
import org.apache.hadoop.eclipse.Activator;
import org.eclipse.jface.preference.DirectoryFieldEditor;
import org.eclipse.jface.preference.FieldEditorPreferencePage;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;
/**
* This class represents a preference page that is contributed to the
* Preferences dialog. By subclassing <samp>FieldEditorPreferencePage</samp>,
* we can use the field support built into JFace that allows us to create a
* page that is small and knows how to save, restore and apply itself.
* <p>
* This page is used to modify preferences only. They are stored in the
* preference store that belongs to the main plug-in class. That way,
* preferences can be accessed directly via the preference store.
*/
public class HadoopHomeDirPreferencePage extends FieldEditorPreferencePage
implements IWorkbenchPreferencePage {
public HadoopHomeDirPreferencePage() {
super(GRID);
setPreferenceStore(Activator.getDefault().getPreferenceStore());
setTitle("MapReduce Tools");
setDescription("MapReduce Preferences");
}
/**
* Creates the field editors. Field editors are abstractions of the common
* GUI blocks needed to manipulate various types of preferences. Each field
* editor knows how to save and restore itself.
*/
@Override
public void createFieldEditors() {
addField(new DirectoryFieldEditor(PreferenceConstants.P_PATH,
"&Hadoop main directory:", getFieldEditorParent()));
}
/* @inheritDoc */
public void init(IWorkbench workbench) {
}
}