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## groovy.util
[Java] Class FactoryBuilderSupport

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

    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.

Authors:
  James Strachan
  Andres Almiray
  Danno Ferrin

Field Summary
`static String` | `CHILD_BUILDER`
`static String` | `CURRENT_BUILDER`
`static String` | `CURRENT_FACTORY`
`static String` | `CURRENT_NAME`
`static String` | `CURRENT_NODE`
`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` | `attributeDelegates`
`protected boolean` | `autoRegistrationComplete`
`protected boolean` | `autoRegistrationRunning`
`protected Map` | `explicitMethods`
`protected Map` | `explicitProperties`
`protected LinkedList` | `postInstantiateDelegates`
`protected LinkedList` | `postNodeCompletionDelegates`
`protected LinkedList` | `preInstantiateDelegates`
`protected Map` | `registrationGroup`
`protected String` | `registrationGroupName`

Constructor Summary
`FactoryBuilderSupport()`
`FactoryBuilderSupport(boolean init)`
`FactoryBuilderSupport(Closure nameMappingClosure)`

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 builder 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` | `getAttributeDelegates()`
`FactoryBuilderSupport` | `getChildBuilder()`
`Map` | `getContext()` @return the context of the current node.
`Object` | `getContextAttribute(String key)`
`protected LinkedList` | `getContexts()` @return the stack of available contexts.
`protected Map` | `getContinuationData()` Stores the thread local states in a Map that can be passed across threads
`Object` | `getCurrent()` @return the current node being built.
`FactoryBuilderSupport` | `getCurrentBuilder()` @return the builder that built the current node.
`Factory` | `getCurrentFactory()` @return the factory that built the current node.
`String` | `getCurrentName()` @return the factory of the parent of the current node.
`Map` | `getExplicitMethods()` @return the explicit methods map (Unmodifiable Map).
`Map` | `getExplicitProperties()` @return the explicit properties map (Unmodifiable Map).
`Map` | `getFactories()` @return the factory map (Unmodifiable Map).
`Map` | `getLocalExplicitMethods()` @return the explicit methods map (Unmodifiable Map).
`Map` | `getLocalExplicitProperties()` @return the explicit properties map (Unmodifiable Map).
`Map` | `getLocalFactories()` @return the factory map (Unmodifiable Map).
`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()` @return the context of the parent of the current node.
`Factory` | `getParentFactory()` @return the factory of the parent of the current node.
`String` | `getParentName()` @return the name of the parent of the current node.
`Object` | `getParentNode()` @return the node of the parent of the current node.
`List` | `getPostInstantiateDelegates()`
`List` | `getPostNodeCompletionDelegates()`
`List` | `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` | `getRegistrationGroupItems(String group)`
`Set` | `getRegistrationGroups()`
`Object` | `getVariable(String name)` @param name the name of the variable to lookup
`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)`
`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` | `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 data)` Restores the state of the current 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 establish 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 Binding
getProperty, getVariable, getVariables, setProperty, setVariable

Methods inherited from class GroovyObjectSupport
getMetaClass, getProperty, invokeMethod, setMetaClass, setProperty

Methods inherited from class Object
wait, wait, wait, equals, toString, hashCode, getClass, notify, notifyAll

Field Detail

### CHILD_BUILDER

    public static final String CHILD_BUILDER

### CURRENT_BUILDER

    public static final String CURRENT_BUILDER

### CURRENT_FACTORY

    public static final String CURRENT_FACTORY

### CURRENT_NAME

    public static final String CURRENT_NAME

### CURRENT_NODE

    public static final String CURRENT_NODE

### OWNER

    public static final String OWNER

### PARENT_BUILDER

    public static final String PARENT_BUILDER

### PARENT_CONTEXT

    public static final String PARENT_CONTEXT

### PARENT_FACTORY

    public static final String PARENT_FACTORY

### PARENT_NAME

    public static final String PARENT_NAME

### PARENT_NODE

    public static final String PARENT_NODE

### attributeDelegates

    protected LinkedList attributeDelegates

### autoRegistrationComplete

    protected boolean autoRegistrationComplete

### autoRegistrationRunning

    protected boolean autoRegistrationRunning

### explicitMethods

    protected Map explicitMethods

### explicitProperties

    protected Map explicitProperties

### postInstantiateDelegates

    protected LinkedList postInstantiateDelegates

### postNodeCompletionDelegates

    protected LinkedList postNodeCompletionDelegates

### preInstantiateDelegates

    protected LinkedList preInstantiateDelegates

### registrationGroup

    protected Map registrationGroup

### registrationGroupName

    protected String registrationGroupName

Constructor Detail

### FactoryBuilderSupport

    public FactoryBuilderSupport()

### FactoryBuilderSupport

    public FactoryBuilderSupport(boolean init)

### FactoryBuilderSupport

    @Deprecated
    public FactoryBuilderSupport(Closure nameMappingClosure)

Method Detail

### 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

### addDisposalClosure

    public void addDisposalClosure(Closure closure)

### 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

### 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

### 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

### autoRegisterNodes

    public void autoRegisterNodes()

  Ask the nodes to be registered

### build

    public Object build(Class viewClass)

### build

    public Object build(Script script)

### build

    public Object build(String script, GroovyClassLoader loader)

### checkExplicitMethod

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

### 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 builder 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 assignable 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 assignable to the value's class, false if value is null or a String.

### 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

### dispathNodeCall

    protected Object dispathNodeCall(Object name, Object args)

### dispose

    public void dispose()

### getAttributeDelegates

    public List getAttributeDelegates()

### getChildBuilder

    public FactoryBuilderSupport getChildBuilder()

### getContext

    public Map getContext()

  Returns:
    the context of the current node.

### getContextAttribute

    public Object getContextAttribute(String key)

### getContexts

    protected LinkedList getContexts()

  Returns:
    the stack of available contexts.

### getContinuationData

    protected Map getContinuationData()

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

### getCurrent

    public Object getCurrent()

  Returns:
    the current node being built.

### getCurrentBuilder

    public FactoryBuilderSupport getCurrentBuilder()

  Returns:
    the builder that built the current node.

### 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.

### getExplicitMethods

    public Map getExplicitMethods()

  Returns:
    the explicit methods map (Unmodifiable Map).

### getExplicitProperties

    public Map getExplicitProperties()

  Returns:
    the explicit properties map (Unmodifiable Map).

### getFactories

    public Map getFactories()

  Returns:
    the factory map (Unmodifiable Map).

### getLocalExplicitMethods

    public Map getLocalExplicitMethods()

  Returns:
    the explicit methods map (Unmodifiable Map).

### getLocalExplicitProperties

    public Map getLocalExplicitProperties()

  Returns:
    the explicit properties map (Unmodifiable Map).

### getLocalFactories

    public Map getLocalFactories()

  Returns:
    the factory map (Unmodifiable Map).

### 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

### getNameMappingClosure

    public Closure getNameMappingClosure()

### getParentContext

    public Map getParentContext()

  Returns:
    the context of the parent of the current node.

### getParentFactory

    public Factory getParentFactory()

  Returns:
    the factory of the parent of the current node.

### getParentName

    public String getParentName()

  Returns:
    the name of the parent of the current node.

### getParentNode

    public Object getParentNode()

  Returns:
    the node of the parent of the current node.

### getPostInstantiateDelegates

    public List getPostInstantiateDelegates()

### getPostNodeCompletionDelegates

    public List getPostNodeCompletionDelegates()

### getPreInstantiateDelegates

    public List getPreInstantiateDelegates()

### getProperty

    public Object getProperty(String property)

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

### 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.

### getRegistrationGroupItems

    public Set getRegistrationGroupItems(String group)

### getRegistrationGroups

    public Set getRegistrationGroups()

### getVariable

    public Object getVariable(String name)

  Parameters:
    `name` - the name of the variable to lookup
  Returns:
    the variable value

### getVariables

    public Map getVariables()

### 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

### 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)

### 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 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 the 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

### registerBeanFactory

    public void registerBeanFactory(String theName, Class beanClass)

  Registers a factory for a JavaBean.
  The JavaBean class 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 class 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

### registerExplicitMethod

    public void registerExplicitMethod(String name, Closure closure)

### registerExplicitMethod

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

### registerExplicitProperty

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

### registerExplicitProperty

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

### 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

### 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

### removePostInstantiateDelegate

    public void removePostInstantiateDelegate(Closure delegate)

  Remove the most recently added instance of the postInstantiate delegate.
  Parameters:
    `delegate` - the closure to invoke

### removePostNodeCompletionDelegate

    public void removePostNodeCompletionDelegate(Closure delegate)

  Remove the most recently added instance of the nodeCompletion delegate.
  Parameters:
    `delegate` - the closure to be removed

### removePreInstantiateDelegate

    public void removePreInstantiateDelegate(Closure delegate)

  Remove the most recently added instance of the preInstantiate delegate.
  Parameters:
    `delegate` - the closure to invoke

### reset

    protected void reset()

  Clears the context stack.

### resolveExplicitMethod

    @SuppressWarnings({"UnusedDeclaration"})
    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.

### 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.

### restoreFromContinuationData

    protected void restoreFromContinuationData(Map data)

  Restores the state of the current 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

### setClosureDelegate

    @SuppressWarnings({"UnusedDeclaration"})
    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

### setNameMappingClosure

    public void setNameMappingClosure(Closure nameMappingClosure)

### 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 attributes to be set

### setParent

    protected void setParent(Object parent, Object child)

  Strategy method to establish parent/child relationships.
  Parameters:
    `parent` - the object from the parent node
    `child` - the object from the child node

### setProperty

    public void setProperty(String property, Object newValue)

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

### setProxyBuilder

    protected void setProxyBuilder(FactoryBuilderSupport proxyBuilder)

  Sets the builder to be used as a proxy.
  Parameters:
    `proxyBuilder` - the new proxy

### setVariable

    public void setVariable(String name, Object value)

  Sets the value of the given variable
  Parameters:
    `name` - the name of the variable to set
    `value` - the new value for the given variable

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

### 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'.
  throws:
    RuntimeException - any exception the closure might have thrown during execution.
  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.

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

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