com.saxonica.update

Class ReplaceValueAction

java.lang.Object

com.saxonica.update.PendingUpdateAction

com.saxonica.update.ReplaceValueAction

public class ReplaceValueAction
extends PendingUpdateAction

A pending update action representing the effect of a "replace value" expression. This corresponds broadly to the upd:replaceValue operation defined in the W3C specification, except that it is capable of replacing the string value of an element node (that is, the upd:replaceElementContent operation) as well as a text, attribute, comment, or processing-instruction node.

Constructor Summary

Constructors

Constructor and Description
ReplaceValueAction(String content, MutableNodeInfo targetNode) Create an InsertAction

Method Summary

Methods

Modifier and Type	Method and Description
void	apply(XPathContext context, Set affectedRootSet) Apply the pending update action to the affected nodes
int	getApplyPhase() Get the phase of operation in which this pending update action is applied.
NodeInfo	getTargetNode() Get the target node of the update action

Methods inherited from class com.saxonica.update.PendingUpdateAction

getOriginator, setOriginator

Methods inherited from class java.lang.Object

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

Constructor Detail

ReplaceValueAction

public ReplaceValueAction(String content,
                  MutableNodeInfo targetNode)

Create an InsertAction

Parameters:

content - the content sequence to be inserted (a value which must consist entirely of nodes. The caller is responsible for copying the nodes into the same object model representation as the tree into which they will be inserted; also for merging adjacent text nodes, extracting the children of a document node, and so on.)

targetNode - the node that defines where the new nodes will be inserted

Method Detail

apply

public void apply(XPathContext context,
         Set affectedRootSet)

Apply the pending update action to the affected nodes

Specified by:

apply in class PendingUpdateAction

Parameters:

context - the XPath evaluation context

affectedRootSet - the set of roots of trees that have been modified, which this action should add to as necessary

Throws:

XPathException - if any error occurs applying the update

getTargetNode

public NodeInfo getTargetNode()

Get the target node of the update action

Specified by:

getTargetNode in class PendingUpdateAction

Returns:

the target node, the node to which this update action applies. Returns null in the case of a delete action, which affects multiple nodes.

getApplyPhase

public int getApplyPhase()

Get the phase of operation in which this pending update action is applied. See 3.2.2 upd:applyUpdates, Semantics, rule 2.

Specified by:

getApplyPhase in class PendingUpdateAction

Returns:

the phase of operation, an integer in the range 1 to 5 representing the stages labelled a-e in the specification