content: package org.apache.lucene.analysis.tokenattributes;
  
  /**
   * 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.io.Serializable;
  
  import org.apache.lucene.util.AttributeImpl;
  
  /**
   * This attribute can be used to pass different flags down the tokenizer chain,
   * eg from one TokenFilter to another one. 
   * @lucene.experimental While we think this is here to stay, we may want to change it to be a long.
   */
  public class FlagsAttributeImpl extends AttributeImpl implements FlagsAttribute, Cloneable, Serializable {
    private int flags = 0;
    
    /**
     * <p/>
     *
     * Get the bitset for any bits that have been set.  This is completely distinct from {@link TypeAttribute#type()}, although they do share similar purposes.
     * The flags can be used to encode information about the token for use by other {@link org.apache.lucene.analysis.TokenFilter}s.
     *
     *
     * @return The bits
     */
    public int getFlags() {
      return flags;
    }
  
    /**
     * @see #getFlags()
     */
    public void setFlags(int flags) {
      this.flags = flags;
    }
    
    @Override
    public void clear() {
      flags = 0;
    }
  
    @Override
    public boolean equals(Object other) {
      if (this == other) {
        return true;
      }
      
      if (other instanceof FlagsAttributeImpl) {
        return ((FlagsAttributeImpl) other).flags == flags;
      }
      
      return false;
    }
  
    @Override
    public int hashCode() {
      return flags;
    }
    
    @Override
    public void copyTo(AttributeImpl target) {
      FlagsAttribute t = (FlagsAttribute) target;
      t.setFlags(flags);
    }
  }
  