com.saxonica.update
Class PendingUpdateListImpl

java.lang.Object
  com.saxonica.update.PendingUpdateListImpl

All Implemented Interfaces:

PendingUpdateList

public class PendingUpdateListImpl
extends Object
implements PendingUpdateList

Concrete implementation of the Pending Update List

Constructor Summary

PendingUpdateListImpl(Configuration config)
Create a Pending Update List

Method Summary

void	add(PendingUpdateAction action) Add an action to the pending update list
void	addPutAction(NodeInfo node, String uri, Expression originator) Add a put() action to the pending update list
void	apply(XPathContext context, int validationMode) Apply the pending updates
Set	getAffectedTrees() Get the root nodes of the trees that are affected by updates in the pending update list

Methods inherited from class java.lang.Object

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

Constructor Detail

PendingUpdateListImpl

public PendingUpdateListImpl(Configuration config)

Create a Pending Update List

Parameters:

config - the Saxon configuration

Method Detail

add

public void add(PendingUpdateAction action)
         throws XPathException

Add an action to the pending update list

Parameters:

action - the Pending Update Action to be added to the list

Throws:

XPathException - if the pending update action conflicts with an action that is already on the list

addPutAction

public void addPutAction(NodeInfo node,
                         String uri,
                         Expression originator)
                  throws XPathException

Add a put() action to the pending update list

Specified by:

addPutAction in interface PendingUpdateList

Parameters:

node - (the first argument of put())

uri - (the second argument of put())

originator - the originating put() expression, for diagnostics

Throws:

XPathException

apply

public void apply(XPathContext context,
                  int validationMode)
           throws XPathException

Apply the pending updates

Specified by:

apply in interface PendingUpdateList

Parameters:

context - the XPath dynamic evaluation context

validationMode - the revalidation mode from the static context

Throws:

XPathException

getAffectedTrees

public Set getAffectedTrees()

Get the root nodes of the trees that are affected by updates in the pending update list

Specified by:

getAffectedTrees in interface PendingUpdateList

Returns:

the root nodes of affected trees, as a Set. Note that this includes all trees that have been updated; this is a superset of the trees that need to be revalidated, but updates that don't require revalidation are sufficiently unusual that we don't trouble with the distinction.