java.lang.Object
- org.python.core.PyObject
- - org.python.core.PyDescriptor
  - - org.python.core.PyDataDescr

All Implemented Interfaces:

java.io.Serializable, Traverseproc
```
public abstract class PyDataDescr
extends PyDescriptor
```
Implements type checking and return type coercion for a data descriptor. A subclass must at least implement invokeGet which is called in __get__ operations. If the descriptor supports setting and deleting, the subclass must also override invokeSet and invokeDel respectively. When implementing those methods, their respective implementsDescr* methods should be overriden as well.

See Also:

Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from class org.python.core.PyObject
  PyObject.ConversionException

Field Summary
- Fields inherited from class org.python.core.PyObject
  gcMonitorGlobal, TYPE

Constructor Summary

Constructors
Constructor	Description
`PyDataDescr(java.lang.String name, java.lang.Class ofType, java.lang.String doc)`	This constructor does not initialize the type the descriptor belongs to. setType must be called before this descriptor can be used.
`PyDataDescr(PyType onType, java.lang.String name, java.lang.Class ofType, java.lang.String doc)`

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`__delete__(PyObject obj)`
`PyObject`	`__get__(PyObject obj, PyObject type)`	Get descriptor for this PyObject.
`void`	`__set__(PyObject obj, PyObject value)`
`java.lang.String`	`getDoc()`
`java.lang.String`	`getName()`	Return the name this descriptor is exposed as.
`PyObject`	`getObjClass()`	Return the owner class of this descriptor.
`void`	`getset_descriptor___delete__(PyObject obj)`
`PyObject`	`getset_descriptor___get__(PyObject obj, PyObject type)`
`void`	`getset_descriptor___set__(PyObject obj, PyObject value)`
`void`	`invokeDelete(PyObject obj)`
`abstract java.lang.Object`	`invokeGet(PyObject obj)`
`void`	`invokeSet(PyObject obj, java.lang.Object converted)`
`boolean`	`isDataDescr()`
`void`	`setType(PyType onType)`	Sets the type the descriptor belongs to.
`java.lang.String`	`toString()`

Methods inherited from class org.python.core.PyDescriptor
refersDirectlyTo, traverse

Methods inherited from class org.python.core.PyObject
__abs__, __add__, __and__, __call__, __call__, __call__, __call__, __call__, __call__, __call__, __call__, __call__, __call__, __call__, __call__, __call__, __call__, __call__, __call__, __cmp__, __coerce__, __coerce_ex__, __complex__, __contains__, __delattr__, __delattr__, __delitem__, __delitem__, __delslice__, __delslice__, __dir__, __div__, __divmod__, __ensure_finalizer__, __eq__, __findattr__, __findattr__, __findattr_ex__, __finditem__, __finditem__, __finditem__, __float__, __floordiv__, __format__, __ge__, __getattr__, __getattr__, __getitem__, __getitem__, __getnewargs__, __getslice__, __getslice__, __gt__, __hash__, __hex__, __iadd__, __iand__, __idiv__, __idivmod__, __ifloordiv__, __ilshift__, __imod__, __imul__, __index__, __int__, __invert__, __ior__, __ipow__, __irshift__, __isub__, __iter__, __iternext__, __itruediv__, __ixor__, __le__, __len__, __long__, __lshift__, __lt__, __mod__, __mul__, __ne__, __neg__, __nonzero__, __not__, __oct__, __or__, __pos__, __pow__, __pow__, __radd__, __rand__, __rdiv__, __rdivmod__, __reduce__, __reduce_ex__, __reduce_ex__, __repr__, __rfloordiv__, __rlshift__, __rmod__, __rmul__, __ror__, __rpow__, __rrshift__, __rshift__, __rsub__, __rtruediv__, __rxor__, __setattr__, __setattr__, __setitem__, __setitem__, __setitem__, __setslice__, __setslice__, __str__, __sub__, __tojava__, __truediv__, __trunc__, __unicode__, __xor__, _add, _and, _callextra, _cmp, _div, _divmod, _doget, _doget, _doset, _eq, _floordiv, _ge, _gt, _iadd, _iand, _idiv, _idivmod, _ifloordiv, _ilshift, _imod, _imul, _in, _ior, _ipow, _irshift, _is, _isnot, _isub, _itruediv, _ixor, _jcall, _jcallexc, _jthrow, _le, _lshift, _lt, _mod, _mul, _ne, _notin, _or, _pow, _rshift, _sub, _truediv, _xor, asDouble, asIndex, asIndex, asInt, asInt, asIterable, asLong, asLong, asName, asName, asString, asString, asStringOrNull, asStringOrNull, bit_length, conjugate, delDict, delType, dispatch__init__, equals, fastGetClass, fastGetDict, getDict, getType, hashCode, implementsDescrDelete, implementsDescrGet, implementsDescrSet, invoke, invoke, invoke, invoke, invoke, invoke, isCallable, isIndex, isInteger, isMappingType, isNumberType, isSequenceType, noAttributeError, object___subclasshook__, readonlyAttributeError, setDict

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - PyDataDescr
```
public PyDataDescr(PyType onType,
                   java.lang.String name,
                   java.lang.Class ofType,
                   java.lang.String doc)
```
    Parameters:
    
    onType - - the type the descriptor belongs to
    
    name - - the name of the descriptor on descriptor type
    
    ofType - - the type returned by the descriptor>

<

Class PyDataDescr

Nested Class Summary

Nested classes/interfaces inherited from class org.python.core.PyObject

Field Summary

Fields inherited from class org.python.core.PyObject

Constructor Summary

Method Summary

Methods inherited from class org.python.core.PyDescriptor

Methods inherited from class org.python.core.PyObject

Methods inherited from class java.lang.Object

Constructor Detail

PyDataDescr