net.sf.saxon.z

Class IntBlockSet

java.lang.Object

net.sf.saxon.z.IntBlockSet

All Implemented Interfaces:

IntSet

public class IntBlockSet
extends Object
implements IntSet

Set of int values. This immutable implementation of IntSet represents a dense monotonic range of integers from A to B.

Author:

Michael Kay

Constructor Summary

Constructors

Constructor and Description
IntBlockSet(int startPoint, int endPoint) Create an IntRangeSet given the start point and end point of the integer range.

Method Summary

Modifier and Type	Method and Description
boolean	add(int value) Add an integer to the set.
void	clear() Clear the contents of the IntSet (making it an empty set)
boolean	contains(int value) Determine whether a particular integer is present in the set
IntSet	copy() Create a copy of this IntSet that leaves the original unchanged.
boolean	equals(Object other) Test whether this set has exactly the same members as another set.
int	getEndPoint() Get the end point of the range
int	getStartPoint() Get the start point of the range
int	hashCode() Construct a hash key that supports the equals() test
boolean	isEmpty() Determine if the set is empty
IntIterator	iterator() Get an iterator over the values
IntSet	mutableCopy() Create a copy of this IntSet that contains the same set of integers.
boolean	remove(int value) Remove an integer from the set
int	size() Get the number of integers in the set
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.saxon.z.IntSet

containsAll, except, intersect, union

Constructor Detail

IntBlockSet

public IntBlockSet(int startPoint,
                   int endPoint)

Create an IntRangeSet given the start point and end point of the integer range.

Parameters:

startPoint - the start point of the integer range

endPoint - the end point of the integer range

Throws:

IllegalArgumentException - if the two arrays are different lengths. Other error conditions in the input are not currently detected.

Method Detail

copy

public IntSet copy()

Description copied from interface: IntSet

Create a copy of this IntSet that leaves the original unchanged.

Specified by:

copy in interface IntSet

Returns:

an IntSet containing the same integers. The result will not necessarily be the same class as the original. It will either be an immutable object, or a newly constructed object.

mutableCopy

public IntSet mutableCopy()

Description copied from interface: IntSet

Create a copy of this IntSet that contains the same set of integers.

Specified by:

mutableCopy in interface IntSet

Returns:

an IntSet containing the same integers. The result will not necessarily be the same class as the original. It will always be a mutable object

size

public int size()

Description copied from interface: IntSet

Get the number of integers in the set

Specified by:

size in interface IntSet

Returns:

the size of the set

isEmpty

public boolean isEmpty()

Description copied from interface: IntSet

Determine if the set is empty

Specified by:

isEmpty in interface IntSet

Returns:

true if the set is empty, false if not

contains

public boolean contains(int value)

Description copied from interface: IntSet

Determine whether a particular integer is present in the set

Specified by:

contains in interface IntSet

Parameters:

value - the integer under test

Returns:

true if value is present in the set, false if not

remove

public boolean remove(int value)

Remove an integer from the set

Specified by:

remove in interface IntSet

Parameters:

value - the integer to be removed

Returns:

true if the integer was present in the set, false if it was not present

Throws:

UnsupportedOperationException - (always)

clear

public void clear()

Description copied from interface: IntSet

Clear the contents of the IntSet (making it an empty set)

Specified by:

clear in interface IntSet

add

public boolean add(int value)

Add an integer to the set. Always throws UnsupportedOperationException

Specified by:

add in interface IntSet

Parameters:

value - the integer to be added

Returns:

true if the integer was added, false if it was already present

Throws:

UnsupportedOperationException - (always)

iterator

public IntIterator iterator()

Get an iterator over the values

Specified by:

iterator in interface IntSet

Returns:

an iterator over the integers in the set

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object other)

Test whether this set has exactly the same members as another set. Note that IntBlockSet values are NOT comparable with other implementations of IntSet

Overrides:

equals in class Object

hashCode

public int hashCode()

Construct a hash key that supports the equals() test

Overrides:

hashCode in class Object

getStartPoint

public int getStartPoint()

Get the start point of the range

getEndPoint

public int getEndPoint()

Get the end point of the range