org.apache.commons.jxpath
Class AbstractFactory
java.lang.Object
org.apache.commons.jxpath.AbstractFactory
public abstract class AbstractFactory
extends java.lang.Object
The
JXPathContext.createPath()
method of
JXPathContext can create missing objects as it traverses an XPath; it
utilizes an AbstractFactory for that purpose. Install a factory on
JXPathContext by calling
JXPathContext.
setFactory()
.
All methods of this class return false. Override any of them to return true
to indicate that the factory has successfully created the described object.
$Revision: 1.8 $ $Date: 2004/02/29 14:17:42 $
createObject
public boolean createObject(JXPathContext context,
Pointer pointer,
Object parent,
String name,
int index)
The parameters may describe a collection element or an individual
object. It is up to the factory to infer which one it is. If it is a
collection, the factory should check if the collection exists. If not,
it should create the collection. Then it should create the index'th
element of the collection and return true.
context
- can be used to evaluate other XPaths, get to variables
etc.pointer
- describes the location of the node to be createdparent
- is the object that will server as a parent of the new
objectname
- is the name of the child of the parent that needs to be
created. In the case of DOM may be qualified.index
- is used if the pointer represents a collection element. You
may need to expand or even create the collection to accomodate the new
element.
- true if the object was successfully created
declareVariable
public boolean declareVariable(JXPathContext context,
String name)
Declare the specified variable
- true if the variable was successfully defined