runtime/org.argeo.slc.detached/src/main/java/org/argeo/slc/detached/ui/UiPart.java

   1 /*
   2  * Copyright (C) 2007-2012 Argeo GmbH
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.argeo.slc.detached.ui;
  17
  18 import org.argeo.slc.detached.DetachedContext;
  19 import org.argeo.slc.detached.DetachedRequest;
  20
  21 public abstract class UiPart {
  22         private boolean initialized = false;
  23
  24         public synchronized final void init(DetachedContext context,
  25                         DetachedRequest request) {
  26                 initUi(context, request);
  27                 initialized = true;
  28         }
  29
  30         public synchronized final void reset(DetachedContext context,
  31                         DetachedRequest request) {
  32                 resetUi(context, request);
  33                 initialized = false;
  34         }
  35
  36         protected abstract void initUi(DetachedContext context,
  37                         DetachedRequest request);
  38
  39         protected void resetUi(DetachedContext context, DetachedRequest request) {
  40
  41         }
  42
  43         public synchronized boolean isInitialized() {
  44                 return initialized;
  45         }
  46
  47 }