Package org.python.core
Class PyReversedIterator
- java.lang.Object
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- org.python.core.PyObject
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- org.python.core.PyIterator
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- org.python.core.PyReversedIterator
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- All Implemented Interfaces:
java.io.Serializable,java.lang.Iterable<java.lang.Object>,Traverseproc
public class PyReversedIterator extends PyIterator
An iterator that yields the objects from a sequence-like object in reverse order.- See Also:
- Serialized Form
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Nested Class Summary
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Nested classes/interfaces inherited from class org.python.core.PyObject
PyObject.ConversionException
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Field Summary
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Fields inherited from class org.python.core.PyIterator
__doc__next
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Fields inherited from class org.python.core.PyObject
gcMonitorGlobal, TYPE
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Constructor Summary
Constructors Constructor Description PyReversedIterator(PyObject seq)Creates an iterator that first yields the item at __len__ - 1 on seq and returns the objects in descending order from there down to 0.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description PyObject__iternext__()Return the next element of the sequence that this is an iterator for.booleanrefersDirectlyTo(PyObject ob)Optional operation.inttraverse(Visitproc visit, java.lang.Object arg)Traverses all directly containedPyObjects.-
Methods inherited from class org.python.core.PyIterator
__iter__, __tojava__, iterator, next
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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__, __delete__, __delitem__, __delitem__, __delslice__, __delslice__, __dir__, __div__, __divmod__, __ensure_finalizer__, __eq__, __findattr__, __findattr__, __findattr_ex__, __finditem__, __finditem__, __finditem__, __float__, __floordiv__, __format__, __ge__, __get__, __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__, __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__, __set__, __setattr__, __setattr__, __setitem__, __setitem__, __setitem__, __setslice__, __setslice__, __str__, __sub__, __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, isDataDescr, isIndex, isInteger, isMappingType, isNumberType, isSequenceType, noAttributeError, object___subclasshook__, readonlyAttributeError, setDict, setType, toString
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Constructor Detail
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PyReversedIterator
public PyReversedIterator(PyObject seq)
Creates an iterator that first yields the item at __len__ - 1 on seq and returns the objects in descending order from there down to 0.- Parameters:
seq- - an object that supports __getitem__ and __len__
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Method Detail
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__iternext__
public PyObject __iternext__()
Description copied from class:PyObjectReturn the next element of the sequence that this is an iterator for. Returns null when the end of the sequence is reached.- Specified by:
__iternext__in classPyIterator
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traverse
public int traverse(Visitproc visit, java.lang.Object arg)
Description copied from interface:TraverseprocTraverses all directly containedPyObjects. Like in CPython,argmust be passed unmodified tovisitas its second parameter. IfVisitproc.visit(PyObject, Object)returns nonzero, this return value must be returned immediately by traverse.Visitproc.visit(PyObject, Object)must not be called with anullPyObject-argument.- Specified by:
traversein interfaceTraverseproc- Overrides:
traversein classPyIterator
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refersDirectlyTo
public boolean refersDirectlyTo(PyObject ob)
Description copied from interface:TraverseprocOptional operation. Should only be implemented if it is more efficient than callingTraverseproc.traverse(Visitproc, Object)with a visitproc that just watches out forob. Must returnfalseifobisnull.- Specified by:
refersDirectlyToin interfaceTraverseproc- Overrides:
refersDirectlyToin classPyIterator
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