org.eclipse.equinox.internal.p2.metadata

Class VersionVector

java.lang.Object

org.eclipse.equinox.internal.p2.metadata.VersionVector

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<VersionVector>

public class VersionVector
extends java.lang.Object
implements java.lang.Comparable<VersionVector>, java.io.Serializable

The VersionVector represents an array of Comparable objects. The array can be nested since a VersionVector is Comparable in itself.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.Comparable<java.lang.Object>	MAX_VALUE A value that is greater then any other value
static java.lang.Comparable<java.lang.Object>	MAXS_VALUE A value that is greater then any string but less then MAX_VALUE and any Integer or VersionVector.
static java.lang.Comparable<java.lang.Object>	MIN_VALUE A value that is less then any other value
static java.lang.String	MINS_VALUE A value that is greater then MIN_VALUE and less then any string, Integer, or VersionVector (a.k.a. empty_string)

Constructor Summary

Constructors

Constructor and Description
VersionVector(java.lang.Comparable<?>[] vector, java.lang.Comparable<?> pad)

Method Summary

Modifier and Type	Method and Description
int	compareTo(VersionVector ov)
boolean	equals(java.lang.Object o)
java.lang.Comparable<?>	getPad() Returns the pad value used when comparing this versions to versions that has a raw vector with a larger number of elements
java.lang.Comparable<?>	getSegment(int index) An element from the raw vector
int	getSegmentCount() Returns the number of elements in the raw vector
int	hashCode()
java.lang.String	toString()
void	toString(java.lang.StringBuffer sb) Append the string representation of this instance to the sb buffer.

Methods inherited from class java.lang.Object

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

Field Detail

MAX_VALUE

public static final java.lang.Comparable<java.lang.Object> MAX_VALUE

A value that is greater then any other value

MAXS_VALUE

public static final java.lang.Comparable<java.lang.Object> MAXS_VALUE

A value that is greater then any string but less then MAX_VALUE and any Integer or VersionVector.

MIN_VALUE

public static final java.lang.Comparable<java.lang.Object> MIN_VALUE

A value that is less then any other value

MINS_VALUE

public static final java.lang.String MINS_VALUE

A value that is greater then MIN_VALUE and less then any string, Integer, or VersionVector (a.k.a. empty_string)

See Also:

Constant Field Values

Constructor Detail

VersionVector

public VersionVector(java.lang.Comparable<?>[] vector,
                     java.lang.Comparable<?> pad)

Method Detail

compareTo

public int compareTo(VersionVector ov)

Specified by:

compareTo in interface java.lang.Comparable<VersionVector>

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

getPad

public java.lang.Comparable<?> getPad()

Returns the pad value used when comparing this versions to versions that has a raw vector with a larger number of elements

Returns:

The pad value or null if not set.

getSegment

public java.lang.Comparable<?> getSegment(int index)

An element from the raw vector

Parameters:

index - The zero based index of the desired element

Returns:

An element from the raw vector

getSegmentCount

public int getSegmentCount()

Returns the number of elements in the raw vector

Returns:

The element count

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

toString

public void toString(java.lang.StringBuffer sb)

Append the string representation of this instance to the sb buffer.

Parameters:

sb - The buffer to append to