freemarker.ext.jython
Class JythonHashModel

java.lang.Object
  freemarker.ext.jython.JythonModel
      freemarker.ext.jython.JythonHashModel

All Implemented Interfaces:

WrapperTemplateModel, AdapterTemplateModel, TemplateBooleanModel, TemplateHashModel, TemplateHashModelEx, TemplateMethodModel, TemplateMethodModelEx, TemplateModel, TemplateScalarModel

public class JythonHashModel
extends JythonModel
implements TemplateHashModelEx

Model for Jython dictionaries (PyDictionary and PyStringMap). Note that the basic JythonModel already provides access to the PyObject.__finditem__(String) method. This class only adds TemplateHashModelEx functionality in a somewhat skewed way. One could say it even violates TemplateHashModelEx semantics, as both the returned keys and values are only those from the item mapping, while the get() method works for attributes as well. However, in practice when you ask for dict?keys inside a template, you'll really want to retrieve only items, not attributes so this is considered OK.

Version:

$Id: JythonHashModel.java,v 1.14 2003/11/12 21:53:40 ddekany Exp $

Author:

Attila Szegedi

Field Summary

Fields inherited from class freemarker.ext.jython.JythonModel

object, wrapper

Fields inherited from interface freemarker.template.TemplateModel

NOTHING

Fields inherited from interface freemarker.template.TemplateBooleanModel

FALSE, TRUE

Fields inherited from interface freemarker.template.TemplateScalarModel

EMPTY_STRING

Constructor Summary

JythonHashModel(org.python.core.PyObject object, JythonWrapper wrapper)

Method Summary

TemplateCollectionModel	keys() Returns either object.
int	size() Returns PyObject.__len__().
TemplateCollectionModel	values() Returns object.

Methods inherited from class freemarker.ext.jython.JythonModel

exec, get, getAdaptedObject, getAsBoolean, getAsString, getWrappedObject, isEmpty

Methods inherited from class java.lang.Object

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

Methods inherited from interface freemarker.template.TemplateHashModel

get, isEmpty

Constructor Detail

JythonHashModel

public JythonHashModel(org.python.core.PyObject object,
                       JythonWrapper wrapper)

Method Detail

size

public int size()
         throws TemplateModelException

Returns PyObject.__len__().

Specified by:

size in interface TemplateHashModelEx

Returns:

the number of key/value mappings in the hash.

Throws:

TemplateModelException

keys

public TemplateCollectionModel keys()
                             throws TemplateModelException

Returns either object.__findattr__("keys").__call__() or object.__findattr__("keySet").__call__().

Specified by:

keys in interface TemplateHashModelEx

Returns:

a collection containing the keys in the hash. Every element of the returned collection must implement the TemplateScalarModel (as the keys of hashes are always strings).

Throws:

TemplateModelException

values

public TemplateCollectionModel values()
                               throws TemplateModelException

Returns object.__findattr__("values").__call__().

Specified by:

values in interface TemplateHashModelEx

Returns:

a collection containing the values in the hash.

Throws:

TemplateModelException