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Java Source Code / Java Documentation » Development » PCJ » bak.pcj.set

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

bak.pcj.set .LongRange

LongRange
public class LongRange implements Comparable,Serializable(Code)
	This class represents ranges of consecutive long values. Design note: Empty ranges cannot exist. It gives too many problems defining adjacency and intersections, and empty ranges are not really useful for their purpose of backing up range sets. It also removes the problem of overflow checking. author: Søren Bak version: 1.3 21-08-2003 20:10 since: 1.0

Constructor Summary
public	LongRange(long first, long last) Creates a new range of consecutive long values.

Method Summary
public boolean	adjacentTo(LongRange range) Indicates whether this range is adjacent to a specified range. Parameters: range - the range with which to compare this range.
public boolean	canMergeWith(LongRange range) Indicates whether this can be merged with a specified range. Two ranges can be merged if a range of consecutive values containing all values of both ranges exists. Parameters: range - the range to merge with.
public int	compareTo(Object obj) Compares this range with some object for order. Parameters: obj - the object with which to compare this range.
public boolean	contains(long v) Indicates whether a specified value is a member of this range. Parameters: v - the value to test for membership.
public boolean	equals(Object obj) Indicates whether this range is equal to some object. Parameters: obj - the object with which to compare this range.
public long	first() Returns the first long value in this range.
public int	hashCode() Returns a hash code value for this range.
public int	intersectionLength(LongRange range) Returns the length of the intersection between this range and a specified range. Parameters: range - the range with which to intersect this rance.
public boolean	intersects(LongRange range) Indicates whether this range intersects a specified range. Parameters: range - the range with which to compare this range.
public long	last() Returns the last long value in this range.
public int	length() Returns the number of values in this range.
public LongRange	mergeWith(LongRange range) Creates a new range as a merge between this range and a specified range.
public String	toString() Returns a string representation of this range.
public LongRange	tryMergeWith(LongRange range)

Constructor Detail

LongRange
public LongRange(long first, long last)(Code)
	Creates a new range of consecutive long values. Parameters: first - the first long value in the range. Parameters: last - the last long value in the range. throws: IllegalArgumentException - if `first > last`.

Method Detail

adjacentTo
public boolean adjacentTo(LongRange range)(Code)
	Indicates whether this range is adjacent to a specified range. Parameters: range - the range with which to compare this range. `true` if this range is adjacent to thespecified range. throws: NullPointerException - if `range` is `null`.

canMergeWith
public boolean canMergeWith(LongRange range)(Code)
	Indicates whether this can be merged with a specified range. Two ranges can be merged if a range of consecutive values containing all values of both ranges exists. Parameters: range - the range to merge with. `true` if this range can be merged withthe specified range; returns `false`otherwise. throws: NullPointerException - if `range` is `null`.

compareTo
public int compareTo(Object obj)(Code)
	Compares this range with some object for order. Parameters: obj - the object with which to compare this range. `-1` if this range is less than`obj`; returns `1` if this range isgreater than `obj`; returns `0`otherwise, in which case `this.equals(obj)`is `true`. throws: NullPointerException - if `obj` is `null`. throws: ClassCastException - if `obj` is not of class `LongRange`.

contains
public boolean contains(long v)(Code)
	Indicates whether a specified value is a member of this range. Parameters: v - the value to test for membership. `true` if the specified value is a memberof this range; returns `false` otherwise.

equals
public boolean equals(Object obj)(Code)
	Indicates whether this range is equal to some object. Parameters: obj - the object with which to compare this range. `true` if this range is equal to thespecified object; returns `false`otherwise.

first
public long first()(Code)
	Returns the first long value in this range. the first long value in this range.

hashCode
public int hashCode()(Code)
	Returns a hash code value for this range. a hash code value for this range.

intersectionLength
public int intersectionLength(LongRange range)(Code)
	Returns the length of the intersection between this range and a specified range. Parameters: range - the range with which to intersect this rance. the length of the intersection between thisrange and a specified range. throws: NullPointerException - if `range` is `null`.

intersects
public boolean intersects(LongRange range)(Code)
	Indicates whether this range intersects a specified range. Parameters: range - the range with which to compare this range. `true` if this range has at least onevalue in common with the specified range. throws: NullPointerException - if `range` is `null`.

last
public long last()(Code)
	Returns the last long value in this range. the last long value in this range.

length
public int length()(Code)
	Returns the number of values in this range. the number of values in this range.

mergeWith
public LongRange mergeWith(LongRange range)(Code)
	Creates a new range as a merge between this range and a specified range. Parameters: range - the range with which to merge this range. throws: NullPointerException - if `range` is `null`. throws: IllegalArgumentException - if this range cannot be merged with the specifiedrange.

toString
public String toString()(Code)
	Returns a string representation of this range. a string representation of this range.

tryMergeWith
public LongRange tryMergeWith(LongRange range)(Code)

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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