org.relaxng.datatype.helpers
Class StreamingValidatorImpl

java.lang.Object
  org.relaxng.datatype.helpers.StreamingValidatorImpl

All Implemented Interfaces:

DatatypeStreamingValidator

public final class StreamingValidatorImpl
extends Object
implements DatatypeStreamingValidator

Dummy implementation of DatatypeStreamingValidator.

This implementation can be used as a quick hack when the performance of streaming validation is not important. And this implementation also shows you how to implement the DatatypeStreamingValidator interface.

Typical usage would be:

 class MyDatatype implements Datatype {
     ....
     public DatatypeStreamingValidator createStreamingValidator( ValidationContext context ) {
         return new StreamingValidatorImpl(this,context);
     }
     ....
 }
 

Author:

Kohsuke KAWAGUCHI

Field Summary

private Datatype	baseType Datatype obejct that creates this streaming validator.
private StringBuffer	buffer This buffer accumulates characters.
private ValidationContext	context The current context.

Constructor Summary

StreamingValidatorImpl(Datatype baseType, ValidationContext context)

Method Summary

void	addCharacters(char[] buf, int start, int len) Passes an additional fragment of the literal.
void	checkValid() Similar to the isValid method, but this method throws Exception (with possibly diagnostic information), instead of returning false.
boolean	isValid() Tells if the accumulated literal is valid with respect to the underlying Datatype.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

buffer

private final StringBuffer buffer

This buffer accumulates characters.

baseType

private final Datatype baseType

Datatype obejct that creates this streaming validator.

context

private final ValidationContext context

The current context.

Constructor Detail

StreamingValidatorImpl

public StreamingValidatorImpl(Datatype baseType,
                              ValidationContext context)

Method Detail

addCharacters

public void addCharacters(char[] buf,
                          int start,
                          int len)

Description copied from interface: DatatypeStreamingValidator

Passes an additional fragment of the literal.

The application can call this method several times, then call the isValid method (or the checkValid method) to check the validity of the accumulated characters.

Specified by:

addCharacters in interface DatatypeStreamingValidator

isValid

public boolean isValid()

Description copied from interface: DatatypeStreamingValidator

Tells if the accumulated literal is valid with respect to the underlying Datatype.

Specified by:

isValid in interface DatatypeStreamingValidator

Returns:

True if it is valid. False if otherwise.

checkValid

public void checkValid()
                throws DatatypeException

Description copied from interface: DatatypeStreamingValidator

Similar to the isValid method, but this method throws Exception (with possibly diagnostic information), instead of returning false.

Specified by:

checkValid in interface DatatypeStreamingValidator

Throws:

DatatypeException - If the callee supports the diagnosis and the accumulated literal is invalid, then this exception that possibly contains diagnosis information is thrown.