org.python.core.adapter
Class ExtensiblePyObjectAdapter

java.lang.Object
  org.python.core.adapter.ExtensiblePyObjectAdapter

All Implemented Interfaces:

PyObjectAdapter

Direct Known Subclasses:

ClassicPyObjectAdapter

public class ExtensiblePyObjectAdapter
extends Object
implements PyObjectAdapter

A PyObjectAdapter attempts to adapt a Java Object with three user fillable groups of adapters: preClass, class and postClass.

Constructor Summary

ExtensiblePyObjectAdapter()

Method Summary

PyObject	adapt(Object o) Attempts to adapt o using the preClass, class and postClass adapters.
void	add(ClassAdapter adapter) Adds a Class handling adapter that will adapt any objects of its Class if that object hasn't already been handled by one of the pre class adapters.
void	addPostClass(PyObjectAdapter converter) Adds an adapter to the list of adapters to be tried after the ClassAdapters.
void	addPreClass(PyObjectAdapter adapter) Adds an adapter to the list of adapters to be tried before the ClassAdapters.
boolean	canAdapt(Object o) Returns true if o can be adapted by this adapter.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExtensiblePyObjectAdapter

public ExtensiblePyObjectAdapter()

Method Detail

canAdapt

public boolean canAdapt(Object o)

Description copied from interface: PyObjectAdapter

Returns true if o can be adapted by this adapter.

Specified by:

canAdapt in interface PyObjectAdapter

Returns:

true if a preClass, postClass or class adapter can handle this

adapt

public PyObject adapt(Object o)

Attempts to adapt o using the preClass, class and postClass adapters. First each of the preClass adapters is asked in the order of addition if they can adapt o. If so, they adapt it. Otherwise, if o.getClass() is equal to one of the classes from the added ClassAdapters, that class adapter is used. Finally, each of the post class adapters are asked in turn if they can adapt o. If so, that adapter handles it. If none can, null is returned.

Specified by:

adapt in interface PyObjectAdapter

addPreClass

public void addPreClass(PyObjectAdapter adapter)

Adds an adapter to the list of adapters to be tried before the ClassAdapters.

add

public void add(ClassAdapter adapter)

Adds a Class handling adapter that will adapt any objects of its Class if that object hasn't already been handled by one of the pre class adapters.

addPostClass

public void addPostClass(PyObjectAdapter converter)

Adds an adapter to the list of adapters to be tried after the ClassAdapters.