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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 .CharRange

CharRange
public class CharRange implements Comparable,Serializable(Code)
	This class represents ranges of consecutive char 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	CharRange(char first, char last) Creates a new range of consecutive char values.

Method Summary
public boolean	adjacentTo(CharRange range) Indicates whether this range is adjacent to a specified range. Parameters: range - the range with which to compare this range.
public boolean	canMergeWith(CharRange 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(char 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 char	first() Returns the first char value in this range.
public int	hashCode() Returns a hash code value for this range.
public int	intersectionLength(CharRange 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(CharRange range) Indicates whether this range intersects a specified range. Parameters: range - the range with which to compare this range.
public char	last() Returns the last char value in this range.
public int	length() Returns the number of values in this range.
public CharRange	mergeWith(CharRange 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 CharRange	tryMergeWith(CharRange range)

Constructor Detail

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

Method Detail

adjacentTo
public boolean adjacentTo(CharRange 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(CharRange 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 `CharRange`.

contains
public boolean contains(char 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 char first()(Code)
	Returns the first char value in this range. the first char 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(CharRange 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(CharRange 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 char last()(Code)
	Returns the last char value in this range. the last char 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 CharRange mergeWith(CharRange 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 CharRange tryMergeWith(CharRange 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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