platform/util/src/com/intellij/openapi/util/SimpleFieldCache.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   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
  17 package com.intellij.openapi.util;
  18
  19 public abstract class SimpleFieldCache<T, Owner> extends FieldCache<T,Owner,Object, Object>{
  20   public final T get(Owner owner) {
  21     return get(null, owner, null);
  22   }
  23
  24   protected final T compute(Owner owner, Object p) {
  25     return compute(owner);
  26   }
  27
  28   protected final T getValue(Owner owner, Object p) {
  29     return getValue(owner);
  30   }
  31
  32   protected final void putValue(T t, Owner owner, Object p) {
  33     putValue(t, owner);
  34   }
  35
  36   protected abstract T compute(Owner owner);
  37   protected abstract T getValue(Owner owner);
  38   protected abstract void putValue(T t, Owner owner);
  39 }