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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

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 * by Oracle in the LICENSE file that accompanied this code.

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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

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 *

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/*

 * Copyright (C) 2004-2011

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

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 * THE SOFTWARE.

 */

package com.sun.xml.internal.rngom.binary;

import com.sun.xml.internal.rngom.binary.visitor.PatternFunction;

import com.sun.xml.internal.rngom.binary.visitor.PatternVisitor;

public class ValuePattern extends StringPattern {

  Object obj;

  Datatype dt;

  ValuePattern(Datatype dt, Object obj) {

    super(combineHashCode(VALUE_HASH_CODE, obj.hashCode()));

    this.dt = dt;

    this.obj = obj;

  }

  boolean samePattern(Pattern other) {

    if (getClass() != other.getClass())

      return false;

    if (!(other instanceof ValuePattern))

      return false;

    return (dt.equals(((ValuePattern)other).dt)

            && dt.sameValue(obj, ((ValuePattern)other).obj));

  }

  public void accept(PatternVisitor visitor) {

    visitor.visitValue(dt, obj);

  }

  public Object apply(PatternFunction f) {

    return f.caseValue(this);

  }

    @Override

  void checkRestrictions(int context, DuplicateAttributeDetector dad, Alphabet alpha)

    throws RestrictionViolationException {

    switch (context) {

    case START_CONTEXT:

      throw new RestrictionViolationException("start_contains_value");

    }

  }

  Datatype getDatatype() {

    return dt;

  }

  Object getValue() {

    return obj;

  }

}