1 /*
   2  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.xml.internal.rngom.binary;
  27 
  28 import com.sun.xml.internal.rngom.binary.visitor.PatternFunction;
  29 import com.sun.xml.internal.rngom.binary.visitor.PatternVisitor;
  30 import org.xml.sax.SAXException;
  31 
  32 public class OneOrMorePattern extends Pattern {
  33   Pattern p;
  34 
  35   OneOrMorePattern(Pattern p) {
  36     super(p.isNullable(),
  37           p.getContentType(),
  38           combineHashCode(ONE_OR_MORE_HASH_CODE, p.hashCode()));
  39     this.p = p;
  40   }
  41 
  42   Pattern expand(SchemaPatternBuilder b) {
  43     Pattern ep = p.expand(b);
  44     if (ep != p)
  45       return b.makeOneOrMore(ep);
  46     else
  47       return this;
  48   }
  49 
  50   void checkRecursion(int depth) throws SAXException {
  51     p.checkRecursion(depth);
  52   }
  53 
  54   void checkRestrictions(int context, DuplicateAttributeDetector dad, Alphabet alpha)
  55     throws RestrictionViolationException {
  56     switch (context) {
  57     case START_CONTEXT:
  58       throw new RestrictionViolationException("start_contains_one_or_more");
  59     case DATA_EXCEPT_CONTEXT:
  60       throw new RestrictionViolationException("data_except_contains_one_or_more");
  61     }
  62 
  63     p.checkRestrictions(context == ELEMENT_CONTEXT
  64                         ? ELEMENT_REPEAT_CONTEXT
  65                         : context,
  66                         dad,
  67                         alpha);
  68     if (context != LIST_CONTEXT
  69         && !contentTypeGroupable(p.getContentType(), p.getContentType()))
  70       throw new RestrictionViolationException("one_or_more_string");
  71   }
  72 
  73   boolean samePattern(Pattern other) {
  74     return (other instanceof OneOrMorePattern
  75             && p == ((OneOrMorePattern)other).p);
  76   }
  77 
  78   public void accept(PatternVisitor visitor) {
  79     visitor.visitOneOrMore(p);
  80   }
  81 
  82   public Object apply(PatternFunction f) {
  83     return f.caseOneOrMore(this);
  84   }
  85 
  86   Pattern getOperand() {
  87     return p;
  88   }
  89 }