groovy.util
Class FactoryBuilderSupport

java.lang.Object
  groovy.lang.GroovyObjectSupport
      groovy.lang.Binding
          groovy.util.FactoryBuilderSupport

All Implemented Interfaces:

GroovyObject

Direct Known Subclasses:

ObjectGraphBuilder

public abstract class FactoryBuilderSupport
extends Binding

Mix of BuilderSupport and SwingBuilder's factory support. Warning: this implementation is not thread safe and should not be used across threads in a multi-threaded environment. A locking mechanism should be implemented by the subclass if use is expected across multiple threads.

Author:

James Strachan, Andres Almiray , Danno Ferrin

Field Summary

protected LinkedList<Closure>	attributeDelegates
protected boolean	autoRegistrationComplete
protected boolean	autoRegistrationRunning
static String	CHILD_BUILDER
static String	CURRENT_BUILDER
static String	CURRENT_FACTORY
static String	CURRENT_NAME
static String	CURRENT_NODE
protected Map<String,Closure>	explicitMethods
protected Map<String,Closure[]>	explicitProperties
static String	OWNER
static String	PARENT_BUILDER
static String	PARENT_CONTEXT
static String	PARENT_FACTORY
static String	PARENT_NAME
static String	PARENT_NODE
protected LinkedList<Closure>	postInstantiateDelegates
protected LinkedList<Closure>	postNodeCompletionDelegates
protected LinkedList<Closure>	preInstantiateDelegates
protected Map<String,Set<String>>	registrationGroup
protected String	registringGroupName

Constructor Summary

FactoryBuilderSupport()

FactoryBuilderSupport(boolean init)

FactoryBuilderSupport(Closure nameMappingClosure)
Deprecated.

Method Summary

Closure	addAttributeDelegate(Closure attrDelegate) Add an attribute delegate so it can intercept attributes being set.
void	addDisposalClosure(Closure closure)
Closure	addPostInstantiateDelegate(Closure delegate) Add a postInstantiate delegate so it can intercept nodes after they are created.
Closure	addPostNodeCompletionDelegate(Closure delegate) Add a nodeCompletion delegate so it can intercept nodes after they done with building.
Closure	addPreInstantiateDelegate(Closure delegate) Add a preInstantiate delegate so it can intercept nodes before they are created.
void	autoRegisterNodes() Ask the nodes to be registered
Object	build(Class viewClass)
Object	build(Script script)
Object	build(String script, GroovyClassLoader loader)
protected boolean	checkExplicitMethod(String methodName, Object args, Reference result)
static void	checkValueIsNull(Object value, Object name) Throws an exception if value is null.
static boolean	checkValueIsType(Object value, Object name, Class type) Checks type of value against buidler type
static boolean	checkValueIsTypeNotString(Object value, Object name, Class type) Checks values against factory's type
protected Object	createNode(Object name, Map attributes, Object value) This method is responsible for instanciating a node and configure its properties.
protected Object	dispathNodeCall(Object name, Object args)
void	dispose()
List<Closure>	getAttributeDelegates()
FactoryBuilderSupport	getChildBuilder()
Map<String,Object>	getContext()
Object	getContextAttribute(String key)
protected LinkedList<Map<String,Object>>	getContexts()
protected Map<String,Object>	getContinuationData() Stores the thread local states in a Map that can be passed across threads
Object	getCurrent()
FactoryBuilderSupport	getCurrentBuilder()
Factory	getCurrentFactory()
String	getCurrentName()
Map<String,Closure>	getExplicitMethods()
Map<String,Closure[]>	getExplicitProperties()
Map<String,Factory>	getFactories()
Map<String,Closure>	getLocalExplicitMethods()
Map<String,Closure[]>	getLocalExplicitProperties()
Map<String,Factory>	getLocalFactories()
Object	getName(String methodName) A hook to allow names to be converted into some other object such as a QName in XML or ObjectName in JMX.
Closure	getNameMappingClosure()
Map	getParentContext()
Factory	getParentFactory()
String	getParentName()
Object	getParentNode()
List<Closure>	getPostInstantiateDelegates()
List<Closure>	getPostNodeCompletionDelegates()
List<Closure>	getPreInstantiateDelegates()
Object	getProperty(String property) Overloaded to make variables appear as bean properties or via the subscript operator
protected FactoryBuilderSupport	getProxyBuilder() Proxy builders are useful for changing the building context, thus enabling mix & match builders.
Set<String>	getRegistrationGroupItems(String group)
Set<String>	getRegistrationGroups()
Object	getVariable(String name)
Map	getVariables()
protected void	handleNodeAttributes(Object node, Map attributes) Assigns any existing properties to the node.
Object	invokeMethod(String methodName) Convenience method when no arguments are required
Object	invokeMethod(String methodName, Object args) Invokes the given method.
protected void	newContext() Pushes a new context on the stack.
protected void	nodeCompleted(Object parent, Object node) A hook to allow nodes to be processed once they have had all of their children applied.
protected Map<String,Object>	popContext() Removes the last context from the stack.
protected void	postInstantiate(Object name, Map attributes, Object node) A hook after the factory creates the node and before attributes are set.
protected Object	postNodeCompletion(Object parent, Object node) A hook to allow nodes to be processed once they have had all of their children applied and allows the actual node object that represents the Markup element to be changed.
protected void	preInstantiate(Object name, Map attributes, Object value) A hook before the factory creates the node.
void	registerBeanFactory(String theName, Class beanClass) Registers a factory for a JavaBean.
void	registerBeanFactory(String theName, String groupName, Class beanClass) Registers a factory for a JavaBean.
void	registerExplicitMethod(String name, Closure closure)
void	registerExplicitMethod(String name, String groupName, Closure closure)
void	registerExplicitProperty(String name, Closure getter, Closure setter)
void	registerExplicitProperty(String name, String groupName, Closure getter, Closure setter)
void	registerFactory(String name, Factory factory) Registers a factory for a node name.
void	registerFactory(String name, String groupName, Factory factory) Registers a factory for a node name.
void	removeAttributeDelegate(Closure attrDelegate) Remove the most recently added instance of the attribute delegate.
void	removePostInstantiateDelegate(Closure delegate) Remove the most recently added instance of the postInstantiate delegate.
void	removePostNodeCompletionDelegate(Closure delegate) Remove the most recently added instance of the nodeCompletion delegate.
void	removePreInstantiateDelegate(Closure delegate) Remove the most recently added instance of the preInstantiate delegate.
protected void	reset() Clears the context stack.
protected Closure	resolveExplicitMethod(String methodName, Object args) This is a hook for subclasses to plugin a custom strategy for mapping names to explicit methods.
protected Closure[]	resolveExplicitProperty(String propertyName) This is a hook for subclasses to plugin a custom strategy for mapping names to property methods.
protected Factory	resolveFactory(Object name, Map attributes, Object value) This is a hook for subclasses to plugin a custom strategy for mapping names to factories.
protected void	restoreFromContinuationData(Map<String,Object> data) Restores the state of the curent builder to the same state as an older build.
protected void	setClosureDelegate(Closure closure, Object node) A strategy method to allow derived builders to use builder-trees and switch in different kinds of builders.
void	setNameMappingClosure(Closure nameMappingClosure)
protected void	setNodeAttributes(Object node, Map attributes) Maps attributes key/values to properties on node.
protected void	setParent(Object parent, Object child) Strategy method to stablish parent/child relationships.
void	setProperty(String property, Object newValue) Overloaded to make variables appear as bean properties or via the subscript operator
protected void	setProxyBuilder(FactoryBuilderSupport proxyBuilder) Sets the builder to be used as a proxy.
void	setVariable(String name, Object value) Sets the value of the given variable
Object	withBuilder(FactoryBuilderSupport builder, Closure closure) Switches the builder's proxyBuilder during the execution of a closure.
Object	withBuilder(FactoryBuilderSupport builder, String name, Closure closure) Switches the builder's proxyBuilder during the execution of a closure.
Object	withBuilder(Map attributes, FactoryBuilderSupport builder, String name, Closure closure) Switches the builder's proxyBuilder during the execution of a closure.

Methods inherited from class groovy.lang.GroovyObjectSupport

getMetaClass, setMetaClass

Methods inherited from class java.lang.Object

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

Field Detail

CURRENT_FACTORY

public static final String CURRENT_FACTORY

See Also:

Constant Field Values

PARENT_FACTORY

public static final String PARENT_FACTORY

See Also:

Constant Field Values

PARENT_NODE

public static final String PARENT_NODE

See Also:

Constant Field Values

CURRENT_NODE

public static final String CURRENT_NODE

See Also:

Constant Field Values

PARENT_CONTEXT

public static final String PARENT_CONTEXT

See Also:

Constant Field Values

PARENT_NAME

public static final String PARENT_NAME

See Also:

Constant Field Values

CURRENT_NAME

public static final String CURRENT_NAME

See Also:

Constant Field Values

OWNER

public static final String OWNER

See Also:

Constant Field Values

PARENT_BUILDER

public static final String PARENT_BUILDER

See Also:

Constant Field Values

CURRENT_BUILDER

public static final String CURRENT_BUILDER

See Also:

Constant Field Values

CHILD_BUILDER

public static final String CHILD_BUILDER

See Also:

Constant Field Values

attributeDelegates

protected LinkedList<Closure> attributeDelegates

preInstantiateDelegates

protected LinkedList<Closure> preInstantiateDelegates

postInstantiateDelegates

protected LinkedList<Closure> postInstantiateDelegates

postNodeCompletionDelegates

protected LinkedList<Closure> postNodeCompletionDelegates

explicitProperties

protected Map<String,Closure[]> explicitProperties

explicitMethods

protected Map<String,Closure> explicitMethods

registrationGroup

protected Map<String,Set<String>> registrationGroup

registringGroupName

protected String registringGroupName

autoRegistrationRunning

protected boolean autoRegistrationRunning

autoRegistrationComplete

protected boolean autoRegistrationComplete

Constructor Detail

FactoryBuilderSupport

public FactoryBuilderSupport()

FactoryBuilderSupport

public FactoryBuilderSupport(boolean init)

FactoryBuilderSupport

@Deprecated
public FactoryBuilderSupport(Closure nameMappingClosure)

Deprecated.

Method Detail

checkValueIsNull

public static void checkValueIsNull(Object value,
                                    Object name)

Throws an exception if value is null.

Parameters:

value - the node's value

name - the node's name

checkValueIsType

public static boolean checkValueIsType(Object value,
                                       Object name,
                                       Class type)

Checks type of value against buidler type

Parameters:

value - the node's value

name - the node's name

type - a Class that may be assignable to the value's class

Returns:

true if type is assignalbe to the value's class, false if value is null.

checkValueIsTypeNotString

public static boolean checkValueIsTypeNotString(Object value,
                                                Object name,
                                                Class type)

Checks values against factory's type

Parameters:

value - the node's value

name - the node's name

type - a Class that may be assignable to the value's class

Returns:

Returns true if type is assignale to the value's class, false if value is null or a String.

autoRegisterNodes

public void autoRegisterNodes()

Ask the nodes to be registered

getVariable

public Object getVariable(String name)

Overrides:

getVariable in class Binding

Parameters:

name - the name of the variable to lookup

Returns:

the variable value

setVariable

public void setVariable(String name,
                        Object value)

Sets the value of the given variable

Overrides:

setVariable in class Binding

Parameters:

name - the name of the variable to set

value - the new value for the given variable

getVariables

public Map getVariables()

Overrides:

getVariables in class Binding

getProperty

public Object getProperty(String property)

Overloaded to make variables appear as bean properties or via the subscript operator

Specified by:

getProperty in interface GroovyObject

Overrides:

getProperty in class Binding

Parameters:

property - the name of the property of interest

Returns:

the given property

setProperty

public void setProperty(String property,
                        Object newValue)

Overloaded to make variables appear as bean properties or via the subscript operator

Specified by:

setProperty in interface GroovyObject

Overrides:

setProperty in class Binding

Parameters:

property - the name of the property of interest

newValue - the new value for the property

getFactories

public Map<String,Factory> getFactories()

Returns:

the factory map (Unmodifiable Map).

getExplicitMethods

public Map<String,Closure> getExplicitMethods()

Returns:

the explicit methods map (Unmodifiable Map).

getExplicitProperties

public Map<String,Closure[]> getExplicitProperties()

Returns:

the explicit properties map (Unmodifiable Map).

getLocalFactories

public Map<String,Factory> getLocalFactories()

Returns:

the factory map (Unmodifiable Map).

getLocalExplicitMethods

public Map<String,Closure> getLocalExplicitMethods()

Returns:

the explicit methods map (Unmodifiable Map).

getLocalExplicitProperties

public Map<String,Closure[]> getLocalExplicitProperties()

Returns:

the explicit properties map (Unmodifiable Map).

getRegistrationGroups

public Set<String> getRegistrationGroups()

getRegistrationGroupItems

public Set<String> getRegistrationGroupItems(String group)

getAttributeDelegates

public List<Closure> getAttributeDelegates()

getPreInstantiateDelegates

public List<Closure> getPreInstantiateDelegates()

getPostInstantiateDelegates

public List<Closure> getPostInstantiateDelegates()

getPostNodeCompletionDelegates

public List<Closure> getPostNodeCompletionDelegates()

getContext

public Map<String,Object> getContext()

Returns:

the context of the current node.

getCurrent

public Object getCurrent()

Returns:

the current node being built.

getCurrentFactory

public Factory getCurrentFactory()

Returns:

the factory that built the current node.

getCurrentName

public String getCurrentName()

Returns:

the factory of the parent of the current node.

getCurrentBuilder

public FactoryBuilderSupport getCurrentBuilder()

Returns:

the builder that built the current node.

getParentNode

public Object getParentNode()

Returns:

the node of the parent of the current node.

getParentFactory

public Factory getParentFactory()

Returns:

the factory of the parent of the current node.

getParentContext

public Map getParentContext()

Returns:

the context of the parent of the current node.

getParentName

public String getParentName()

Returns:

the name of the parent of the current node.

getChildBuilder

public FactoryBuilderSupport getChildBuilder()

getContextAttribute

public Object getContextAttribute(String key)

invokeMethod

public Object invokeMethod(String methodName)

Convenience method when no arguments are required

Parameters:

methodName - the name of the method to invoke

Returns:

the result of the call

invokeMethod

public Object invokeMethod(String methodName,
                           Object args)

Description copied from interface: GroovyObject

Invokes the given method.

Specified by:

invokeMethod in interface GroovyObject

Overrides:

invokeMethod in class GroovyObjectSupport

Parameters:

methodName - the name of the method to call

args - the arguments to use for the method call

Returns:

the result of invoking the method

addAttributeDelegate

public Closure addAttributeDelegate(Closure attrDelegate)

Add an attribute delegate so it can intercept attributes being set. Attribute delegates are fired in a FILO pattern, so that nested delegates get first crack.

Parameters:

attrDelegate - the closure to be called

Returns:

attrDelegate

removeAttributeDelegate

public void removeAttributeDelegate(Closure attrDelegate)

Remove the most recently added instance of the attribute delegate.

Parameters:

attrDelegate - the instance of the closure to be removed

addPreInstantiateDelegate

public Closure addPreInstantiateDelegate(Closure delegate)

Add a preInstantiate delegate so it can intercept nodes before they are created. PreInstantiate delegates are fired in a FILO pattern, so that nested delegates get first crack.

Parameters:

delegate - the closure to invoke

Returns:

delegate

removePreInstantiateDelegate

public void removePreInstantiateDelegate(Closure delegate)

Remove the most recently added instance of the preInstantiate delegate.

Parameters:

delegate - the closure to invoke

addPostInstantiateDelegate

public Closure addPostInstantiateDelegate(Closure delegate)

Add a postInstantiate delegate so it can intercept nodes after they are created. PostInstantiate delegates are fired in a FILO pattern, so that nested delegates get first crack.

Parameters:

delegate - the closure to invoke

Returns:

delegate

removePostInstantiateDelegate

public void removePostInstantiateDelegate(Closure delegate)

Remove the most recently added instance of the postInstantiate delegate.

Parameters:

delegate - the closure to invoke

addPostNodeCompletionDelegate

public Closure addPostNodeCompletionDelegate(Closure delegate)

Add a nodeCompletion delegate so it can intercept nodes after they done with building. NodeCompletion delegates are fired in a FILO pattern, so that nested delegates get first crack.

Parameters:

delegate - the closure to invoke

Returns:

delegate

removePostNodeCompletionDelegate

public void removePostNodeCompletionDelegate(Closure delegate)

Remove the most recently added instance of the nodeCompletion delegate.

Parameters:

delegate - the closure to be removed

registerExplicitProperty

public void registerExplicitProperty(String name,
                                     Closure getter,
                                     Closure setter)

registerExplicitProperty

public void registerExplicitProperty(String name,
                                     String groupName,
                                     Closure getter,
                                     Closure setter)

registerExplicitMethod

public void registerExplicitMethod(String name,
                                   Closure closure)

registerExplicitMethod

public void registerExplicitMethod(String name,
                                   String groupName,
                                   Closure closure)

registerBeanFactory

public void registerBeanFactory(String theName,
                                Class beanClass)

Registers a factory for a JavaBean.
The JavaBean clas should have a no-args constructor.

Parameters:

theName - name of the node

beanClass - the factory to handle the name

registerBeanFactory

public void registerBeanFactory(String theName,
                                String groupName,
                                Class beanClass)

Registers a factory for a JavaBean.
The JavaBean clas should have a no-args constructor.

Parameters:

theName - name of the node

groupName - thr group to register this node in

beanClass - the factory to handle the name

registerFactory

public void registerFactory(String name,
                            Factory factory)

Registers a factory for a node name.

Parameters:

name - the name of the node

factory - the factory to return the values

registerFactory

public void registerFactory(String name,
                            String groupName,
                            Factory factory)

Registers a factory for a node name.

Parameters:

name - the name of the node

groupName - thr group to register this node in

factory - the factory to return the values

createNode

protected Object createNode(Object name,
                            Map attributes,
                            Object value)

This method is responsible for instanciating a node and configure its properties.

Parameters:

name - the name of the node

attributes - the attributes for the node

value - the value arguments for the node

Returns:

the object return from the factory

resolveFactory

protected Factory resolveFactory(Object name,
                                 Map attributes,
                                 Object value)

This is a hook for subclasses to plugin a custom strategy for mapping names to factories.

Parameters:

name - the name of the factory

attributes - the attributes from the node

value - value arguments from te node

Returns:

the Factory associated with name.

resolveExplicitMethod

protected Closure resolveExplicitMethod(String methodName,
                                        Object args)

This is a hook for subclasses to plugin a custom strategy for mapping names to explicit methods.

Parameters:

methodName - the name of the explicit method

args - the arguments for the method

Returns:

the closure for the matched explicit method.

resolveExplicitProperty

protected Closure[] resolveExplicitProperty(String propertyName)

This is a hook for subclasses to plugin a custom strategy for mapping names to property methods.

Parameters:

propertyName - the name of the explicit method

Returns:

the get and set closures (in that order) for the matched explicit property.

checkExplicitMethod

protected boolean checkExplicitMethod(String methodName,
                                      Object args,
                                      Reference result)

dispathNodeCall

protected Object dispathNodeCall(Object name,
                                 Object args)

getName

public Object getName(String methodName)

A hook to allow names to be converted into some other object such as a QName in XML or ObjectName in JMX.

Parameters:

methodName - the name of the desired method

Returns:

the object representing the name

getProxyBuilder

protected FactoryBuilderSupport getProxyBuilder()

Proxy builders are useful for changing the building context, thus enabling mix & match builders.

Returns:

the current builder that serves as a proxy.

setProxyBuilder

protected void setProxyBuilder(FactoryBuilderSupport proxyBuilder)

Sets the builder to be used as a proxy.

Parameters:

proxyBuilder - the new proxy

getNameMappingClosure

public Closure getNameMappingClosure()

setNameMappingClosure

public void setNameMappingClosure(Closure nameMappingClosure)

handleNodeAttributes

protected void handleNodeAttributes(Object node,
                                    Map attributes)

Assigns any existing properties to the node.
It will call attributeDelegates before passing control to the factory that built the node.

Parameters:

node - the object returned by tne node factory

attributes - the attributes for the node

newContext

protected void newContext()

Pushes a new context on the stack.

nodeCompleted

protected void nodeCompleted(Object parent,
                             Object node)

A hook to allow nodes to be processed once they have had all of their children applied.

Parameters:

node - the current node being processed

parent - the parent of the node being processed

popContext

protected Map<String,Object> popContext()

Removes the last context from the stack.

Returns:

the contet just removed

postInstantiate

protected void postInstantiate(Object name,
                               Map attributes,
                               Object node)

A hook after the factory creates the node and before attributes are set.
It will call any registered postInstantiateDelegates, if you override this method be sure to call this impl somewhere in your code.

Parameters:

name - the name of the node

attributes - the attributes for the node

node - the object created by teh node factory

postNodeCompletion

protected Object postNodeCompletion(Object parent,
                                    Object node)

A hook to allow nodes to be processed once they have had all of their children applied and allows the actual node object that represents the Markup element to be changed.
It will call any registered postNodeCompletionDelegates, if you override this method be sure to call this impl at the end of your code.

Parameters:

node - the current node being processed

parent - the parent of the node being processed

Returns:

the node, possibly new, that represents the markup element

preInstantiate

protected void preInstantiate(Object name,
                              Map attributes,
                              Object value)

A hook before the factory creates the node.
It will call any registered preInstantiateDelegates, if you override this method be sure to call this impl somewhere in your code.

Parameters:

name - the name of the node

attributes - the attributes of the node

value - the value argument(s) of the node

reset

protected void reset()

Clears the context stack.

setClosureDelegate

protected void setClosureDelegate(Closure closure,
                                  Object node)

A strategy method to allow derived builders to use builder-trees and switch in different kinds of builders. This method should call the setDelegate() method on the closure which by default passes in this but if node is-a builder we could pass that in instead (or do something wacky too)

Parameters:

closure - the closure on which to call setDelegate()

node - the node value that we've just created, which could be a builder

setNodeAttributes

protected void setNodeAttributes(Object node,
                                 Map attributes)

Maps attributes key/values to properties on node.

Parameters:

node - the object from the node

attributes - the attributtes to be set

setParent

protected void setParent(Object parent,
                         Object child)

Strategy method to stablish parent/child relationships.

Parameters:

parent - the object from the parent node

child - the object from the child node

getContexts

protected LinkedList<Map<String,Object>> getContexts()

Returns:

the stack of available contexts.

getContinuationData

protected Map<String,Object> getContinuationData()

Stores the thread local states in a Map that can be passed across threads

Returns:

the map

restoreFromContinuationData

protected void restoreFromContinuationData(Map<String,Object> data)

Restores the state of the curent builder to the same state as an older build. Caution, this will destroy rather than merge the current build context if there is any,

Parameters:

data - the data retrieved from a compatible getContinuationData call

build

public Object build(Class viewClass)

build

public Object build(Script script)

build

public Object build(String script,
                    GroovyClassLoader loader)

withBuilder

public Object withBuilder(FactoryBuilderSupport builder,
                          Closure closure)

Switches the builder's proxyBuilder during the execution of a closure.
This is useful to temporary change the building context to another builder without the need for a contrived setup. It will also take care of restoring the previous proxyBuilder when the execution finishes, even if an exception was thrown from inside the closure.

Parameters:

builder - the temporary builder to switch to as proxyBuilder.

closure - the closure to be executed under the temporary builder.

Returns:

the execution result of the closure.

Throws:

RuntimeException - - any exception the closure might have thrown during execution.

withBuilder

public Object withBuilder(FactoryBuilderSupport builder,
                          String name,
                          Closure closure)

Switches the builder's proxyBuilder during the execution of a closure.
This is useful to temporary change the building context to another builder without the need for a contrived setup. It will also take care of restoring the previous proxyBuilder when the execution finishes, even if an exception was thrown from inside the closure. Additionally it will use the closure's result as the value for the node identified by 'name'.

Parameters:

builder - the temporary builder to switch to as proxyBuilder.

name - the node to build on the 'parent' builder.

closure - the closure to be executed under the temporary builder.

Returns:

a node that responds to value of name with the closure's result as its value.

Throws:

RuntimeException - - any exception the closure might have thrown during execution.

withBuilder

public Object withBuilder(Map attributes,
                          FactoryBuilderSupport builder,
                          String name,
                          Closure closure)

Switches the builder's proxyBuilder during the execution of a closure.
This is useful to temporary change the building context to another builder without the need for a contrived setup. It will also take care of restoring the previous proxyBuilder when the execution finishes, even if an exception was thrown from inside the closure. Additionally it will use the closure's result as the value for the node identified by 'name' and assign any attributes that might have been set.

Parameters:

attributes - additional properties for the node on the parent builder.

builder - the temporary builder to switch to as proxyBuilder.

name - the node to build on the 'parent' builder.

closure - the closure to be executed under the temporary builder.

Returns:

a node that responds to value of name with the closure's result as its value.

Throws:

RuntimeException - - any exception the closure might have thrown during execution.

addDisposalClosure

public void addDisposalClosure(Closure closure)

dispose

public void dispose()