src/main/java/org/apache/commons/ognl/PrimitiveWrapperClasses.java

package org.apache.commons.ognl;

/*
 * 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.
 */

import java.util.IdentityHashMap;
import java.util.Map;

/**
 * Used to provide primitive type equivalent conversions into and out of native / object types.
 */
class PrimitiveWrapperClasses {

    private final Map<Class<?>, Class<?>> map = new IdentityHashMap<Class<?>, Class<?>>();

    PrimitiveWrapperClasses() {
        map.put( Boolean.TYPE, Boolean.class );
        map.put( Boolean.class, Boolean.TYPE );
        map.put( Byte.TYPE, Byte.class );
        map.put( Byte.class, Byte.TYPE );
        map.put( Character.TYPE, Character.class );
        map.put( Character.class, Character.TYPE );
        map.put( Short.TYPE, Short.class );
        map.put( Short.class, Short.TYPE );
        map.put( Integer.TYPE, Integer.class );
        map.put( Integer.class, Integer.TYPE );
        map.put( Long.TYPE, Long.class );
        map.put( Long.class, Long.TYPE );
        map.put( Float.TYPE, Float.class );
        map.put( Float.class, Float.TYPE );
        map.put( Double.TYPE, Double.class );
        map.put( Double.class, Double.TYPE );
    }

    Class<?> get( Class<?> cls ) {
        return map.get( cls );
    }
}