org.apache.dvsl

Class DVSLNodeContext

java.lang.Object

org.apache.velocity.context.AbstractContext

org.apache.velocity.VelocityContext

org.apache.dvsl.DVSLNodeContext

All Implemented Interfaces:

java.lang.Cloneable, org.apache.velocity.context.Context, org.apache.velocity.context.InternalEventContext

 class DVSLNodeContext
extends org.apache.velocity.VelocityContext

Context implementation that is the outer context during the transformation. Holds the node stack and also protects the 'special' context elements like 'node'

There are special elements like 'node', which is readonly and corresponds to the current node, and 'attrib', which corresponds to a map of attributes for the current node.

Author:

Geir Magnusson Jr.

Field Summary

Fields

Modifier and Type	Field and Description
private static java.lang.String	ATTRIB Magic context entity that corresponds to a Map of attributes for the current node
protected java.util.Map	ctx
private static java.lang.String	NODE Magic context entity that corresponds to the current node
private java.util.Stack	nodeStack Used to hold the nodes as we get invoked from within the document for applyTemplates() duties

Constructor Summary

Constructors

Modifier	Constructor and Description
private	DVSLNodeContext()
	DVSLNodeContext(org.apache.velocity.context.Context context)

Method Summary

Methods

Modifier and Type	Method and Description
(package private) void	clearNode()
boolean	internalContainsKey(java.lang.Object key) determines if there is a value for the given key
java.lang.Object	internalGet(java.lang.String key) retrieves value for key from internal storage
java.lang.Object[]	internalGetKeys() returns array of keys $$$ GMJ todo
java.lang.Object	internalPut(java.lang.String key, java.lang.Object value) stores the value for key to internal storage
java.lang.Object	internalRemove(java.lang.Object key) remove a key/value pair from the internal storage
(package private) DVSLNode	peekNode()
(package private) DVSLNode	popNode()
(package private) DVSLNode	pushNode(DVSLNode n)

Methods inherited from class org.apache.velocity.VelocityContext

clone

Methods inherited from class org.apache.velocity.context.AbstractContext

containsKey, get, getChainedContext, getKeys, put, remove

Methods inherited from class java.lang.Object

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

Field Detail

NODE

private static final java.lang.String NODE

Magic context entity that corresponds to the current node

See Also:

Constant Field Values

ATTRIB

private static final java.lang.String ATTRIB

Magic context entity that corresponds to a Map of attributes for the current node

See Also:

Constant Field Values

nodeStack

private java.util.Stack nodeStack

Used to hold the nodes as we get invoked from within the document for applyTemplates() duties

ctx

protected java.util.Map ctx

Constructor Detail

DVSLNodeContext

public DVSLNodeContext(org.apache.velocity.context.Context context)

DVSLNodeContext

private DVSLNodeContext()

Method Detail

internalGet

public java.lang.Object internalGet(java.lang.String key)

retrieves value for key from internal storage

Overrides:

internalGet in class org.apache.velocity.VelocityContext

Parameters:

key - name of value to get

Returns:

value as object

internalPut

public java.lang.Object internalPut(java.lang.String key,
                           java.lang.Object value)

stores the value for key to internal storage

Overrides:

internalPut in class org.apache.velocity.VelocityContext

Parameters:

key - name of value to store

value - value to store

Returns:

previous value of key as Object

internalContainsKey

public boolean internalContainsKey(java.lang.Object key)

determines if there is a value for the given key

Overrides:

internalContainsKey in class org.apache.velocity.VelocityContext

Parameters:

key - name of value to check

Returns:

true if non-null value in store

internalGetKeys

public java.lang.Object[] internalGetKeys()

returns array of keys $$$ GMJ todo

Overrides:

internalGetKeys in class org.apache.velocity.VelocityContext

Returns:

keys as []

internalRemove

public java.lang.Object internalRemove(java.lang.Object key)

remove a key/value pair from the internal storage

Overrides:

internalRemove in class org.apache.velocity.VelocityContext

Parameters:

key - name of value to remove

Returns:

value removed

pushNode

DVSLNode pushNode(DVSLNode n)

peekNode

DVSLNode peekNode()

popNode

DVSLNode popNode()

clearNode

void clearNode()