com.saxonica.stream
Class AttributeCopier

java.lang.Object
  com.saxonica.validate.Checker
      com.saxonica.stream.AttributeCopier

All Implemented Interfaces:

Result, Receiver

public class AttributeCopier
extends Checker

A Checker is a Receiver used to check the content of elements and attributes, especially those that participate in uniqueness, key, and keyref constraints. The AttributeCopier is the Checker that checks the content of attributes: basically by passing any that match the selection criteria to the next stage in the pipeline

Field Summary

Fields inherited from interface javax.xml.transform.Result

PI_DISABLE_OUTPUT_ESCAPING, PI_ENABLE_OUTPUT_ESCAPING

Constructor Summary

AttributeCopier(Selection selection, Receiver nextReceiver)
Create an AttributeCopier

Method Summary

void	attribute(int nameCode, int typeCode, CharSequence value, int locationId, int properties) Notify an attribute, passing it on to the receiver if it matches the selection
void	startContent() Notify the start of the content, that is, the completion of all attributes and namespaces.
boolean	usesTypeAnnotations() Ask whether this Receiver (or the downstream pipeline) makes any use of the type annotations supplied on element and attribute events

Methods inherited from class com.saxonica.validate.Checker

characters, close, comment, endDocument, endElement, getConfiguration, getPipelineConfiguration, getSystemId, namespace, open, processingInstruction, setPipelineConfiguration, setSystemId, setUnparsedEntity, startDocument, startElement

Methods inherited from class java.lang.Object

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

Constructor Detail

AttributeCopier

public AttributeCopier(Selection selection,
                       Receiver nextReceiver)

Create an AttributeCopier

Parameters:

selection - the conditions that this checker is watching for

nextReceiver - the next stage in the pipeline, to receive matching attribute nodes

Method Detail

attribute

public void attribute(int nameCode,
                      int typeCode,
                      CharSequence value,
                      int locationId,
                      int properties)
               throws XPathException

Notify an attribute, passing it on to the receiver if it matches the selection

Specified by:

attribute in interface Receiver

Overrides:

attribute in class Checker

Parameters:

nameCode - The name of the attribute, as held in the name pool

typeCode - The type of the attribute, as held in the name pool. The additional bit NodeInfo.IS_DTD_TYPE may be set to indicate a DTD-derived type.

value - the string value of the attribute

locationId - an integer which can be interpreted using a LocationProvider to return information such as line number and system ID. If no location information is available, the value zero is supplied.

properties - Bit significant value. The following bits are defined:

DISABLE_ESCAPING

Disable escaping for this attribute

NO_SPECIAL_CHARACTERS

Attribute value contains no special characters

Throws:

XPathException

startContent

public void startContent()
                  throws XPathException

Description copied from interface: Receiver

Notify the start of the content, that is, the completion of all attributes and namespaces. Note that the initial receiver of output from XSLT instructions will not receive this event, it has to detect it itself. Note that this event is reported for every element even if it has no attributes, no namespaces, and no content.

Specified by:

startContent in interface Receiver

Overrides:

startContent in class Checker

Throws:

XPathException

usesTypeAnnotations

public boolean usesTypeAnnotations()

Ask whether this Receiver (or the downstream pipeline) makes any use of the type annotations supplied on element and attribute events

Returns:

true if the Receiver makes any use of this information. If false, the caller may supply untyped nodes instead of supplying the type annotation