/* * 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.el.util;
public ConcurrentCache(int size) { this.size = size; this.eden = new ConcurrentHashMap<>(size); this.longterm = new WeakHashMap<>(size);
}
public V get(K k) {
V v = this.eden.get(k); if (v == null) { synchronized (longterm) {
v = this.longterm.get(k);
} if (v != null) { this.eden.put(k, v);
}
} return v;
}
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