/*
 * 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.uima.cas.impl;

import org.apache.uima.cas.FSBooleanConstraint;

/**
 * See interface for documentation.
 */
public class FSBooleanConstraintImpl implements FSBooleanConstraint {

  private boolean condition = true;
  
  /**
   * Default constructor.
   */
  public FSBooleanConstraintImpl() {
    super();
  }

  /* (non-Javadoc)
   * @see org.apache.uima.cas.FSBooleanConstraint#eq(boolean)
   */
  public void eq(boolean cond) {
    this.condition = cond;
  }
  
  /* (non-Javadoc)
   * @see org.apache.uima.cas.FSBooleanConstraint#match(boolean)
   */
  public boolean match(boolean cond) {
    return (this.condition == cond);
  }

  public String toString() {
    // need to escape quotes and backslashes
    StringBuffer buf = new StringBuffer();
    buf.append("= \"");
    buf.append(this.condition);
    buf.append('"');
    return buf.toString();
}
  
}
