Examples of com.sun.msv.grammar.Expression

com.sun.msv.grammar.Expression
Primitive of the tree regular expression. most of the derived class is immutable (except ReferenceExp, ElementExp and OtherExp).
By making it immutable, it becomes possible to share subexpressions among expressions. This is very important for regular-expression-derivation based validation algorithm, as well as for smaller memory footprint. This sharing is automatically achieved by ExpressionPool.
ReferebceExp, ElementExp, and OtherExp are also placed in the pool, but these are not unified. Since they are not unified, application can derive classes from these expressions and mix them into AGM. This technique is heavily used to introduce schema language specific primitives into AGM. See various sub-packages of this package for examples.
The equals method must be implemented by the derived type. equals method will be used to unify the expressions. equals method can safely assume that its children are already unified (therefore == can be used to test the equality, rather than equals method).
To achieve unification, we overload the equals method so that o1.equals(o2) is true if o1 and o2 are identical. There, those two objects must return the same hash code. For this purpose, the hash code is calculated statically and cached internally. @author Kohsuke KAWAGUCHI

        
        reader.addBackPatchJob( new GrammarReader.BackPatch(){
            public State getOwnerState() { return ElementDeclState.this; }
            public void patch() {
                
                Expression e=null;
                
                if( reader.isSchemaNamespace(s[0]) )
                    // datatypes of XML Schema part 2
                    e = reader.resolveBuiltinSimpleType(s[1]);

View Full Code Here

            // check conflicting elements
            if(elemDupChecker!=null)
                elemDupChecker.add(exp);
            
            // push context element,
            final Expression oldContext = errorContext;
            final DuplicateAttributesChecker oldADC = attDupChecker;
            final DuplicateElementsChecker oldEDC = elemDupChecker;
            
            errorContext = exp;
            attDupChecker = new DuplicateAttributesChecker();

View Full Code Here

            attDupChecker.add(exp);
            
            // check infinite name
            checkAttributeInfiniteName(exp);
            
            final Expression oldContext = errorContext;
            
            errorContext = exp;
            
            exp.exp.getExpandedExp(reader.pool).visit(inAttribute);
            errorContext = oldContext;

View Full Code Here

    exp.contentModel = exp.contentModel.visit(this);
    return exp;
  }
  
  public Expression onAttribute( AttributeExp exp ) {
    Expression content = exp.exp.visit(this);
    if( content==Expression.nullSet )
      return Expression.epsilon;
    else
      return pool.createAttribute( exp.nameClass, content );
  }

View Full Code Here

        return module;
    }
    
    public void bind( SchemaProvider provider, ErrorHandler handler ) throws SAXException {
        {// wrap up anyOtherElements.
            Expression pseudoContentModel = createChoiceOfAllExportedRules(provider);
                
            Iterator itr = pendingAnyOtherElements.iterator();
            while( itr.hasNext() )
                ((AnyOtherElementExp)itr.next()).wrapUp(module,pseudoContentModel,provider,handler);
            pendingAnyOtherElements = null;

View Full Code Here

     * creates a choice expression of all exported rules in the given provider.
     * 
     * this expression is used as a pseudo content model of anyOtherElement.
     */
    private Expression createChoiceOfAllExportedRules( SchemaProvider provider ) {
        Expression exp = Expression.nullSet;
        
        Iterator itr = provider.iterateNamespace();
        while( itr.hasNext() ) {
            String namespace = (String)itr.next();
            IslandSchema is = provider.getSchemaByNamespace(namespace);

View Full Code Here

    private boolean foundConcur;


    public void onConcur(ConcurExp exp) {
        foundConcur = true;
        exp.exp1.visit(this);
        Expression content1 = content;
        Expression continuation1 = continuation;


        exp.exp2.visit(this);


        content = pool.createConcur(content, content1);
        continuation = pool.createConcur(continuation, continuation1);

View Full Code Here

            exp.exp2.visit(this);
            continuation = pool.createInterleave(continuation, exp.exp1);
            return;
        }


        Expression content1 = content;
        Expression continuation1 = continuation;


        exp.exp2.visit(this);


        if (content == Expression.nullSet) {
            content = content1;

View Full Code Here

    public void onOther(OtherExp exp) {
        exp.exp.visit(this);
    }
    public void onChoice(ChoiceExp exp) {
        exp.exp1.visit(this);
        Expression content1 = content;
        Expression continuation1 = continuation;


        exp.exp2.visit(this);


        content = pool.createChoice(content, content1);
        continuation = pool.createChoice(continuation, continuation1);

View Full Code Here

        continuation = pool.createSequence(continuation, exp.exp2);


        if (!exp.exp1.isEpsilonReducible())
            return;


        Expression content1 = content;
        Expression continuation1 = continuation;


        exp.exp2.visit(this);


        if (content == Expression.nullSet) {
            content = content1;

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of com.sun.msv.grammar.Expression

com.sun.msv.generator.Driver

com.sun.msv.generator.NoneTypeRemover

com.sun.msv.grammar.util.RefExpRemover

com.sun.msv.grammar.xmlschema.AttributeWildcard

com.sun.msv.reader.dtd.DTDReader

com.sun.msv.reader.ExpressionState

com.sun.msv.reader.relax.core.AttributeState

com.sun.msv.reader.relax.core.checker.IdAbuseChecker

com.sun.msv.reader.relax.core.InlineElementState

com.sun.msv.reader.relax.core.RELAXCoreReader

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.