org.apache.tools.ant

Class RuntimeConfigurable

Implemented Interfaces:
Serializable

public class RuntimeConfigurable
extends java.lang.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.

Constructor Summary

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

Method Summary

void
addChild(RuntimeConfigurable child)
Adds a child element to the wrapped element.
void
addText(String data)
Adds characters from #PCDATA areas to the wrapped element.
void
addText(char[] buf, int start, int count)
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
getAttributeMap()
Return the attribute map.
AttributeList
getAttributes()
Deprecated. Deprecated since Ant 1.6 in favor of getAttributeMap().
Enumeration
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.
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, String value)
Set an attribute to a given value.
void
setAttributes(AttributeList attributes)
Deprecated. since 1.6.x.
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.

Constructor Details

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 Details

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(String data)
Adds characters from #PCDATA areas to the wrapped element.
Parameters:
data - Text to add to the wrapped element. Should 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.

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 getAttributeMap()
Return the attribute map.
Returns:
Attribute name to attribute value map.
Since:
Ant 1.6

getAttributes

public AttributeList getAttributes()

Deprecated. Deprecated since Ant 1.6 in favor of getAttributeMap().

Returns the list of attributes for the wrapped element.
Returns:
An AttributeList representing the attributes defined in the XML for this element. May be null.

getChildren

public Enumeration 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

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,
                         String value)
Set an attribute to a given value.
Parameters:
name - the name of the attribute.
value - the attribute's value.

setAttributes

public void setAttributes(AttributeList attributes)

Deprecated. since 1.6.x.

Sets the attributes for the wrapped element.
Parameters:
attributes - List of attributes defined in the XML for this element. May be null.

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.