Examples of com.sun.tahiti.grammar.util.Multiplicity

com.sun.tahiti.grammar.util.Multiplicity
represents a possible number of occurence. Usually, denoted by a pair of integers like (1,1) or (5,10). A special value "unbounded" is allowed as the upper bound.
For example, (0,unbounded) corresponds to the '*' occurence of DTD. (0,1) corresponds to the '?' occurence of DTD. @author Kohsuke KAWAGUCHI

      for( int i=0; i<b.length; i++ ) {
        final boolean[] hasChildFieldItem = new boolean[1];


        // compute the multiplicity of the all child JavaItems and 
        // also compute whether this branch has FieldItem in it.
        Multiplicity m = Multiplicity.calc( b[i],
          new MultiplicityCounter(){
            protected Multiplicity isChild( Expression exp ) {
              if(exp instanceof FieldItem)  hasChildFieldItem[0] = true;
              if(exp instanceof PrimitiveItem)  bBranchWithPrimitive[0] = true;
              
              if(exp instanceof IgnoreItem)  return Multiplicity.zero;
              if(exp instanceof JavaItem)    return Multiplicity.one;
              else            return null;
            }
          });


        if(debug!=null) {
          debug.println( "  Branch: " + ExpressionPrinter.printContentModel(b[i]) );
          debug.println( "    multiplicity:"+m+"  hasChildFieldItem:"+hasChildFieldItem[0] );
        }
        
        if(m.isZero())
          continue;    // do nothing for this branch.
        
        numLiveBranch++;
        
        if(!m.isAtMostOnce()) {
          // memorize that this branch is complex.
          complexBranch[i] = true;
          continue;
        }

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      for( int i=0; i<b.length; i++ ) {
        final boolean[] hasChildFieldItem = new boolean[1];


        // compute the multiplicity of the all child JavaItems and 
        // also compute whether this branch has FieldItem in it.
        Multiplicity m = Multiplicity.calc( b[i],
          new MultiplicityCounter(){
            protected Multiplicity isChild( Expression exp ) {
              if(exp instanceof FieldItem)  hasChildFieldItem[0] = true;
              if(exp instanceof PrimitiveItem)  bBranchWithPrimitive[0] = true;
              
              if(exp instanceof IgnoreItem)  return Multiplicity.zero;
              if(exp instanceof JavaItem)    return Multiplicity.one;
              else            return null;
            }
          });


        if(debug!=null) {
          debug.println( "  Branch: " + ExpressionPrinter.printContentModel(b[i]) );
          debug.println( "    multiplicity:"+m+"  hasChildFieldItem:"+hasChildFieldItem[0] );
        }
        
        if(m.isZero())
          continue;    // do nothing for this branch.
        
        numLiveBranch++;
        
        if( !hasChildFieldItem[0] ) {

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      throw new Error("concur is not supported");
    }
    
    public Expression onChoice( ChoiceExp exp ) {
      Expression lhs = exp.exp1.visit(this);
      Multiplicity lhc = multiplicity;
      Expression rhs = exp.exp2.visit(this);
      Multiplicity rhc = multiplicity;
      
      multiplicity = Multiplicity.choice(lhc,rhc);
      return reader.pool.createChoice( lhs, rhs );
    }

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      return reader.pool.createChoice( lhs, rhs );
    }
    
    public Expression onSequence( SequenceExp exp ) {
      Expression lhs = exp.exp1.visit(this);
      Multiplicity lhc = multiplicity;
      Expression rhs = exp.exp2.visit(this);
      Multiplicity rhc = multiplicity;
      
      multiplicity = Multiplicity.group(lhc,rhc);
      return reader.pool.createSequence( lhs, rhs );
    }

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      return reader.pool.createSequence( lhs, rhs );
    }
    
    public Expression onInterleave( InterleaveExp exp ) {
      Expression lhs = exp.exp1.visit(this);
      Multiplicity lhc = multiplicity;
      Expression rhs = exp.exp2.visit(this);
      Multiplicity rhc = multiplicity;
      
      multiplicity = Multiplicity.group(lhc,rhc);
      return reader.pool.createInterleave( lhs, rhs );
    }

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Related Classes of com.sun.tahiti.grammar.util.Multiplicity

com.sun.tahiti.reader.annotator.ChoiceAnnotator$Annotator

com.sun.tahiti.reader.annotator.FieldItemAnnotation$Annotator

com.sun.tahiti.reader.annotator.RelationNormalizer$Pass1

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