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JAXPConfiguration.javaAPI DocJava SE 5 API4081Fri Aug 26 14:55:54 BST 2005com.sun.org.apache.xerces.internal.parsers

JAXPConfiguration

public class JAXPConfiguration extends XIncludeParserConfiguration
{@link com.sun.org.apache.xerces.internal.xni.parser.XMLParseException} that includes a JAXP {@link ValidatorHandler} in the middle.
author
Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com) Venu Gopal (k.venugopal@sun.com)

Fields Summary
private final Schema
fSchema
can be null.
Constructors Summary
public JAXPConfiguration(Schema schema)

param
grammar when non-null, the parser will include validation / infoset augmentation by this {@link Schema}.

        this.fSchema = schema;
Methods Summary
protected voidconfigurePipeline()

        super.configurePipeline();
        
        if (fSchema != null) {
            if( isXNICapabaleSchema(fSchema) ) {
                // if the validator is also from this Xerces,
                // we will use the XNI-based validator for
                // better performance
                InsulatedValidatorComponent v = ((XercesSchema)fSchema).newXNIValidator();
                addComponent(v);
                
                fLastComponent.setDocumentHandler(v.getValidator());
                v.getValidator().setDocumentSource(fLastComponent);
                fLastComponent = v.getValidator();
                v.getValidator().setDocumentHandler(fDocumentHandler);
            } else {
                // otherwise wrap that into JAXPValidatorComponent.
                XMLDocumentFilter validator = null;
                ValidatorHandler validatorHandler = fSchema.newValidatorHandler();
            
                validator = new JAXPValidatorComponent(validatorHandler);
                addComponent((XMLComponent)validator);
                
                fLastComponent.setDocumentHandler(validator);
                validator.setDocumentSource(fLastComponent);
                fLastComponent = validator;
                validator.setDocumentHandler(fDocumentHandler);
            }
        }
public booleangetFeatureDefaultValue(java.lang.String featureId)


        // reset every component
        int count = fComponents.size();
        for (int i = 0; i < count; i++) {
            XMLComponent c = (XMLComponent) fComponents.get(i);
            Boolean bo = c.getFeatureDefault(featureId);
            if(bo != null){
                return bo.booleanValue();
            }
            //null if component doesn't recognize this feature.
            //continue it might be present in some other components.
            //it might make sense to store default values of feature for 
            //the current configuration that would make the lookup faster.
            
        }
        //if it wasn't found in all the components return false;
        return false;
private static booleanisXNICapabaleSchema(javax.xml.validation.Schema s)
Checks if the given {@link Schema} speaks XNI.

        if(!(s instanceof XercesSchema ))   return false;
        
        try {
            String v = System.getProperty(JAXPConfiguration.class.getName()+".noSchemaOptimization");
            if(v==null)
                // there might be a bug in the optimization we do.
                // this property provides an escape hatch for such a situation
                // by forcing non-optimized way.
                return false;
        } catch( Throwable t ) {
            ;
        }
        
        // otherwise if schema derives from XercesSchema,
        // we set up better optimized pipeline.
        return true;