org.apache.tools.ant

Class RuntimeConfigurable

java.lang.Object

org.apache.tools.ant.RuntimeConfigurable

All Implemented Interfaces:

Serializable

public class RuntimeConfigurable
extends Object
implements Serializable

Wrapper class that holds the attributes of an element, its children, and any text within it. It then takes care of configuring that element at runtime.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
RuntimeConfigurable(Object proxy, String elementTag) Sole constructor creating a wrapper for the specified object.

Method Summary

Modifier and Type	Method and Description
void	addChild(RuntimeConfigurable child) Adds a child element to the wrapped element.
void	addText(char[] buf, int start, int count) Adds characters from #PCDATA areas to the wrapped element.
void	addText(String data) Adds characters from #PCDATA areas to the wrapped element.
void	applyPreSet(RuntimeConfigurable r) Apply presets, attributes and text are set if not currently set.
Hashtable<String,Object>	getAttributeMap() Return the attribute map.
Enumeration<RuntimeConfigurable>	getChildren() Returns an enumeration of all child wrappers.
String	getElementTag() Returns the tag name of the wrapped element.
String	getId() Returns the id for this element.
String	getPolyType() Get the polymorphic type for this element.
Object	getProxy() Get the object for which this RuntimeConfigurable holds the configuration information.
StringBuffer	getText() Get the text content of this element.
boolean	isEnabled(UnknownElement owner) Check if an UE is enabled.
void	maybeConfigure(Project p) Configures the wrapped element and all its children.
void	maybeConfigure(Project p, boolean configureChildren) Configures the wrapped element.
void	reconfigure(Project p) Reconfigure the element, even if it has already been configured.
void	removeAttribute(String name) Delete an attribute.
void	setAttribute(String name, Object value) Set an attribute to a given value.
void	setAttribute(String name, String value) Set an attribute to a given value.
void	setElementTag(String elementTag) Set the element tag.
void	setPolyType(String polyType) Set the polymorphic type for this element.
void	setProxy(Object proxy) Sets the element to configure.

Methods inherited from class java.lang.Object

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

Constructor Detail

RuntimeConfigurable

public RuntimeConfigurable(Object proxy,
                           String elementTag)

Sole constructor creating a wrapper for the specified object.

Parameters:

proxy - The element to configure. Must not be null.

elementTag - The tag name generating this element.

Method Detail

addChild

public void addChild(RuntimeConfigurable child)

Adds a child element to the wrapped element.

Parameters:

child - The child element wrapper to add to this one. Must not be null.

addText

public void addText(char[] buf,
                    int start,
                    int count)

Adds characters from #PCDATA areas to the wrapped element.

Parameters:

buf - A character array of the text within the element. Must not be null.

start - The start element in the array.

count - The number of characters to read from the array.

addText

public void addText(String data)

Adds characters from #PCDATA areas to the wrapped element.

Parameters:

data - Text to add to the wrapped element. Should not be null.

applyPreSet

public void applyPreSet(RuntimeConfigurable r)

Apply presets, attributes and text are set if not currently set. Nested elements are prepended.

Parameters:

r - a RuntimeConfigurable value.

getAttributeMap

public Hashtable<String,Object> getAttributeMap()

Return the attribute map.

Returns:

Attribute name to attribute value map.

Since:

Ant 1.6

getChildren

public Enumeration<RuntimeConfigurable> getChildren()

Returns an enumeration of all child wrappers.

Returns:

an enumeration of the child wrappers.

Since:

Ant 1.6

getElementTag

public String getElementTag()

Returns the tag name of the wrapped element.

Returns:

The tag name of the wrapped element. This is unlikely to be null, but may be.

getId

public String getId()

Returns the id for this element.

Returns:

the id.

getPolyType

public String getPolyType()

Get the polymorphic type for this element.

Returns:

the ant component type name, null if not set.

getProxy

public Object getProxy()

Get the object for which this RuntimeConfigurable holds the configuration information.

Returns:

the object whose configure is held by this instance.

getText

public StringBuffer getText()

Get the text content of this element. Various text chunks are concatenated, there is no way ( currently ) of keeping track of multiple fragments.

Returns:

the text content of this element.

Since:

Ant 1.6

isEnabled

public boolean isEnabled(UnknownElement owner)

Check if an UE is enabled. This looks tru the attributes and checks if there are any Ant attributes, and if so, the method calls the isEnabled() method on them.

Parameters:

owner - the UE that owns this RC.

Returns:

true if enabled, false if any of the ant attribures return false.

Since:

1.9.1

maybeConfigure

public void maybeConfigure(Project p)
                    throws BuildException

Configures the wrapped element and all its children. The attributes and text for the wrapped element are configured, and then each child is configured and added. Each time the wrapper is configured, the attributes and text for it are reset. If the element has an id attribute, a reference is added to the project as well.

Parameters:

p - The project containing the wrapped element. Must not be null.

Throws:

BuildException - if the configuration fails, for instance due to invalid attributes or children, or text being added to an element which doesn't accept it.

maybeConfigure

public void maybeConfigure(Project p,
                           boolean configureChildren)
                    throws BuildException

Configures the wrapped element. The attributes and text for the wrapped element are configured. Each time the wrapper is configured, the attributes and text for it are reset. If the element has an id attribute, a reference is added to the project as well.

Parameters:

p - The project containing the wrapped element. Must not be null.

configureChildren - ignored.

Throws:

BuildException - if the configuration fails, for instance due to invalid attributes , or text being added to an element which doesn't accept it.

reconfigure

public void reconfigure(Project p)

Reconfigure the element, even if it has already been configured.

Parameters:

p - the project instance for this configuration.

removeAttribute

public void removeAttribute(String name)

Delete an attribute. Not for the faint of heart.

Parameters:

name - the name of the attribute to be removed.

setAttribute

public void setAttribute(String name,
                         Object value)

Set an attribute to a given value.

Parameters:

name - the name of the attribute.

value - the attribute's value.

Since:

1.9

setAttribute

public void setAttribute(String name,
                         String value)

Set an attribute to a given value.

Parameters:

name - the name of the attribute.

value - the attribute's value.

setElementTag

public void setElementTag(String elementTag)

Set the element tag.

Parameters:

elementTag - The tag name generating this element.

setPolyType

public void setPolyType(String polyType)

Set the polymorphic type for this element.

Parameters:

polyType - the ant component type name, null if not set.

setProxy

public void setProxy(Object proxy)

Sets the element to configure.

Parameters:

proxy - The element to configure. Must not be null.