platform/util/src/com/intellij/util/text/CaseInsensitiveStringHashingStrategy.java

/*
 * Copyright 2000-2013 JetBrains s.r.o.
 *
 * Licensed 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 com.intellij.util.text;

import com.intellij.openapi.util.text.StringUtil;
import gnu.trove.TObjectHashingStrategy;

/**
 * @author max
 */
public class CaseInsensitiveStringHashingStrategy implements TObjectHashingStrategy<String> {
  public static final CaseInsensitiveStringHashingStrategy INSTANCE = new CaseInsensitiveStringHashingStrategy();
  
  @Override
  public int computeHashCode(final String s) {
    return StringUtil.stringHashCodeInsensitive(s);
  }

  @Override
  public boolean equals(final String s1, final String s2) {
    return s1.equalsIgnoreCase(s2);
  }
}