org.incava.diff

Class Difference

java.lang.Object

org.incava.diff.Difference

public class Difference
extends java.lang.Object

Represents a difference, as used in Diff. A difference consists of two pairs of starting and ending points, each pair representing either the "from" or the "to" collection passed to Diff. If an ending point is -1, then the difference was either a deletion or an addition. For example, if getDeletedEnd() returns -1, then the difference represents an addition.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.Integer	NONE

Constructor Summary

Constructors

Constructor and Description
Difference(java.lang.Integer delStart, java.lang.Integer delEnd, java.lang.Integer addStart, java.lang.Integer addEnd) Creates the difference for the given start and end points for the deletion and addition.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj) Compares this object to the other for equality.
java.lang.Integer	getAddedEnd() The point at which the addition ends, if any.
java.lang.Integer	getAddedStart() The point at which the addition starts, if any.
java.lang.Integer	getDeletedEnd() The point at which the deletion ends, if any.
java.lang.Integer	getDeletedStart() The point at which the deletion starts, if any.
int	hashCode()
boolean	isAdd()
boolean	isChange()
boolean	isDelete()
java.lang.String	toString() Returns a string representation of this difference.
protected java.lang.String	toString(int from, int to)
java.lang.String	toStringOrig() Returns a string representation of this difference.

Methods inherited from class java.lang.Object

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

Field Detail

NONE

public static final java.lang.Integer NONE

Constructor Detail

Difference

public Difference(java.lang.Integer delStart,
                  java.lang.Integer delEnd,
                  java.lang.Integer addStart,
                  java.lang.Integer addEnd)

Creates the difference for the given start and end points for the deletion and addition.

Method Detail

getDeletedStart

public java.lang.Integer getDeletedStart()

The point at which the deletion starts, if any. A value equal to NONE means this is an addition.

getDeletedEnd

public java.lang.Integer getDeletedEnd()

The point at which the deletion ends, if any. A value equal to NONE means this is an addition.

getAddedStart

public java.lang.Integer getAddedStart()

The point at which the addition starts, if any. A value equal to NONE means this must be a deletion.

getAddedEnd

public java.lang.Integer getAddedEnd()

The point at which the addition ends, if any. A value equal to NONE means this must be a deletion.

isAdd

public boolean isAdd()

isDelete

public boolean isDelete()

isChange

public boolean isChange()

equals

public boolean equals(java.lang.Object obj)

Compares this object to the other for equality. Both objects must be of type Difference, with the same starting and ending points.

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toStringOrig

public java.lang.String toStringOrig()

Returns a string representation of this difference.

toString

protected java.lang.String toString(int from,
                                    int to)

toString

public java.lang.String toString()

Returns a string representation of this difference.

Overrides:

toString in class java.lang.Object