001    package org.apache.commons.ognl;
002    
003    /*
004     * Licensed to the Apache Software Foundation (ASF) under one
005     * or more contributor license agreements.  See the NOTICE file
006     * distributed with this work for additional information
007     * regarding copyright ownership.  The ASF licenses this file
008     * to you under the Apache License, Version 2.0 (the
009     * "License"); you may not use this file except in compliance
010     * with the License.  You may obtain a copy of the License at
011     *
012     *   http://www.apache.org/licenses/LICENSE-2.0
013     *
014     * Unless required by applicable law or agreed to in writing,
015     * software distributed under the License is distributed on an
016     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017     * KIND, either express or implied.  See the License for the
018     * specific language governing permissions and limitations
019     * under the License.
020     */
021    
022    /**
023     * This class was previously intended to produce performance improvement.<br>
024     * This hand-made object pooling is now a bottleneck under high load.<br>
025     * We now rely on the new jvm garbage collection improvements to handle object allocation efficiently.
026     *
027     * @deprecated object-pooling now relies on the jvm garbage collection
028     */
029    public final class ObjectArrayPool
030    {
031        public ObjectArrayPool()
032        {
033            super();
034        }
035    
036        public Object[] create( int arraySize )
037        {
038            return new Object[arraySize];
039        }
040    
041        public Object[] create( Object singleton )
042        {
043            Object[] result = create( 1 );
044    
045            result[0] = singleton;
046            return result;
047        }
048    
049        public Object[] create( Object object1, Object object2 )
050        {
051            Object[] result = create( 2 );
052    
053            result[0] = object1;
054            result[1] = object2;
055            return result;
056        }
057    
058        public Object[] create( Object object1, Object object2, Object object3 )
059        {
060            Object[] result = create( 3 );
061    
062            result[0] = object1;
063            result[1] = object2;
064            result[2] = object3;
065            return result;
066        }
067    
068        public Object[] create( Object object1, Object object2, Object object3, Object object4 )
069        {
070            Object[] result = create( 4 );
071    
072            result[0] = object1;
073            result[1] = object2;
074            result[2] = object3;
075            result[3] = object4;
076            return result;
077        }
078    
079        public Object[] create( Object object1, Object object2, Object object3, Object object4, Object object5 )
080        {
081            Object[] result = create( 5 );
082    
083            result[0] = object1;
084            result[1] = object2;
085            result[2] = object3;
086            result[3] = object4;
087            result[4] = object5;
088            return result;
089        }
090    
091        /**
092         * @deprecated object-pooling now relies on the jvm garbage collection
093         */
094        public void recycle( Object[] value )
095        {
096            // no need of recycling, we rely on the garbage collection efficiency
097        }
098    }