Package org.apache.tools.ant.util

Class IdentityStack<E>

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractList<E>

java.util.Vector<E>

java.util.Stack<E>

org.apache.tools.ant.util.IdentityStack<E>

All Implemented Interfaces:

Serializable, Cloneable, Iterable<E>, Collection<E>, List<E>, RandomAccess, SequencedCollection<E>

public class IdentityStack<E>
extends Stack<E>

Identity Stack.

Since:

Ant 1.7

See Also:

• Serialized Form

Field Summary

Fields inherited from class java.util.Vector

capacityIncrement, elementCount, elementData

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

Constructors

Constructor	Description
IdentityStack()	Default constructor.
IdentityStack(E o)	Construct a new IdentityStack with the specified Object as the bottom element.

Method Summary

Modifier and Type	Method	Description
boolean	contains(Object o)	Override methods that use .equals() comparisons on elements.
boolean	containsAll(Collection<?> c)
static <E> IdentityStack<E>	getInstance(Stack<E> s)	Get an IdentityStack containing the contents of the specified Stack.
int	indexOf(Object o, int pos)	Override methods that use .equals() comparisons on elements.
int	lastIndexOf(Object o, int pos)	Override methods that use .equals() comparisons on elements.
boolean	removeAll(Collection<?> c)
boolean	retainAll(Collection<?> c)

Methods inherited from class java.util.Stack

empty, peek, pop, push, search

Methods inherited from class java.util.Vector

add, add, addAll, addAll, addElement, capacity, clear, clone, copyInto, elementAt, elements, ensureCapacity, equals, firstElement, forEach, get, hashCode, indexOf, insertElementAt, isEmpty, iterator, lastElement, lastIndexOf, listIterator, listIterator, remove, remove, removeAllElements, removeElement, removeElementAt, removeIf, removeRange, replaceAll, set, setElementAt, setSize, size, sort, spliterator, subList, toArray, toArray, toString, trimToSize

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection

parallelStream, stream, toArray

Methods inherited from interface java.util.List

addFirst, addLast, getFirst, getLast, removeFirst, removeLast, reversed

Constructor Details

IdentityStack

public IdentityStack()

Default constructor.

IdentityStack

public IdentityStack(E o)

Construct a new IdentityStack with the specified Object as the bottom element.

Parameters:

o - the bottom element.

Method Details

getInstance

public static <E> IdentityStack<E> getInstance(Stack<E> s)

Get an IdentityStack containing the contents of the specified Stack.

Type Parameters:

E - desired type

Parameters:

s - the Stack to copy; ignored if null.

Returns:

an IdentityStack instance.

contains

public boolean contains(Object o)

Override methods that use .equals() comparisons on elements.

Specified by:

contains in interface Collection<E>

Specified by:

contains in interface List<E>

Overrides:

contains in class Vector<E>

Parameters:

o - the Object to search for.

Returns:

true if the stack contains the object.

See Also:

• Vector.contains(Object)

indexOf

public int indexOf(Object o,
 int pos)

Override methods that use .equals() comparisons on elements.

Overrides:

indexOf in class Vector<E>

Parameters:

o - the Object to search for.

pos - the position from which to search.

Returns:

the position of the object, -1 if not found.

See Also:

• Vector.indexOf(Object, int)

lastIndexOf

public int lastIndexOf(Object o,
 int pos)

Override methods that use .equals() comparisons on elements.

Overrides:

lastIndexOf in class Vector<E>

Parameters:

o - the Object to search for.

pos - the position from which to search (backward).

Returns:

the position of the object, -1 if not found.

See Also:

• Vector.indexOf(Object, int)

removeAll

public boolean removeAll(Collection<?> c)

Specified by:

removeAll in interface Collection<E>

Specified by:

removeAll in interface List<E>

Overrides:

removeAll in class Vector<E>

retainAll

public boolean retainAll(Collection<?> c)

Specified by:

retainAll in interface Collection<E>

Specified by:

retainAll in interface List<E>

Overrides:

retainAll in class Vector<E>

containsAll

public boolean containsAll(Collection<?> c)

Specified by:

containsAll in interface Collection<E>

Specified by:

containsAll in interface List<E>

Overrides:

containsAll in class Vector<E>