org.apache.velocity.context

Class VMContext

public class VMContext extends Object implements InternalContextAdapter

This is a special, internal-use-only context implementation to be used for the new Velocimacro implementation. The main distinguishing feature is the management of the VMProxyArg objects in the put() and get() methods. Further, this context also supports the 'VM local context' mode, where any get() or put() of references that aren't args to the VM are considered local to the vm, protecting the global context.

Version: $Id: VMContext.java,v 1.9.10.1 2004/03/03 23:22:54 geirm Exp $

Author: Geir Magnusson Jr.

Field Summary
InternalContextAdapter	innerContext the base context store.
HashMap	localcontext container for any local or constant VMProxy items
boolean	localcontextscope support for local context scope feature, where all references are local
HashMap	vmproxyhash container for our VMProxy Objects
InternalContextAdapter	wrappedContext context that we are wrapping

Constructor Summary
	VMContext(InternalContextAdapter inner, RuntimeServices rsvc) CTOR, wraps an ICA

Method Summary
void	addVMProxyArg(VMProxyArg vmpa) Used to put VMProxyArgs into this context.
EventCartridge	attachEventCartridge(EventCartridge ec)
boolean	containsKey(Object key) not yet impl
Object	get(String key) Impl of the Context.gut() method.
InternalContextAdapter	getBaseContext()
Resource	getCurrentResource()
String	getCurrentTemplateName()
EventCartridge	getEventCartridge()
Context	getInternalUserContext() return the inner / user context
Object[]	getKeys() impl badly
Object[]	getTemplateNameStack()
IntrospectionCacheData	icacheGet(Object key)
void	icachePut(Object key, IntrospectionCacheData o)
void	popCurrentTemplateName()
void	pushCurrentTemplateName(String s)
Object	put(String key, Object value) Impl of the Context.put() method.
Object	remove(Object key) impl badly
void	setCurrentResource(Resource r)

Field Detail

innerContext

InternalContextAdapter innerContext

the base context store. This is the 'global' context

localcontext

HashMap localcontext

container for any local or constant VMProxy items

localcontextscope

private boolean localcontextscope

support for local context scope feature, where all references are local

vmproxyhash

HashMap vmproxyhash

container for our VMProxy Objects

wrappedContext

InternalContextAdapter wrappedContext

context that we are wrapping

Constructor Detail

VMContext

public VMContext(InternalContextAdapter inner, RuntimeServices rsvc)

CTOR, wraps an ICA

Method Detail

addVMProxyArg

public void addVMProxyArg(VMProxyArg vmpa)

Used to put VMProxyArgs into this context. It separates the VMProxyArgs into constant and non-constant types pulling out the value of the constant types so they can be modified w/o damaging the VMProxyArg, and leaving the dynamic ones, as they modify context rather than their own state

Parameters: vmpa VMProxyArg to add

Parameters: key name of item to get

Returns: stored object or null

Parameters: key name of item to set value object to set to key

Returns: old stored object

remove

public Object remove(Object key)

impl badly

setCurrentResource

public void setCurrentResource(Resource r)