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## 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.

Version:
  $Revision: 1.6 $ $Date: 2003/03/11 00:59:11 $
Author:
  Dmitri Plotnikov

Constructor Summary
`AbstractFactory()`

Method Summary
`boolean` | `createObject(JXPathContext context, Pointer pointer, java.lang.Object parent, java.lang.String name, int index)` The parameters may describe a collection element or an individual object.
`boolean` | `declareVariable(JXPathContext context, java.lang.String name)` Declare the specified variable

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### AbstractFactory

    public AbstractFactory()

Method Detail

### createObject

    public boolean createObject(JXPathContext context,
                                Pointer pointer,
                                java.lang.Object parent,
                                java.lang.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.

  Parameters:
    `context` - can be used to evaluate other XPaths, get to variables etc.
    `pointer` - describes the location of the node to be created
    `parent` - is the object that will server as a parent of the new object
    `name` - 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.
  Returns:
    true if the object was successfully created

### declareVariable

    public boolean declareVariable(JXPathContext context,
                                   java.lang.String name)

  Declare the specified variable
  Parameters:
    `context` - hosts variable pools. See `JXPathContext.getVariables()`
    `name` - is the name of the variable without the "$" sign
  Returns:
    true if the variable was successfully defined

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