org.unitils.dbmaintainer.version

Class Version

java.lang.Object

org.unitils.dbmaintainer.version.Version

All Implemented Interfaces:

Comparable<Version>

public class Version
extends Object
implements Comparable<Version>

Class representing the version of a database or the version of a script.

A version is represented by a modification timestamp and a list of version indexes. The indexes should be defined as follows:

01_folder/01_subfolder/1_script ==> 1,1,1
01_folder/02_subfolder/1_script ==> 1,2,1
01_folder/02_subfolder/script ==> 1,2,null
folder/subfolder/2_script ==> null,null,2
script ==> null

The last index should always be the index of the script.

Author:

Filip Neven, Tim Ducheyne

Constructor Summary

Constructors

Constructor and Description
Version(List<Long> indexes) Creates a new version.
Version(String indexString) Creates a new version.

Method Summary

Modifier and Type	Method and Description
int	compareTo(Version otherVersion) Compares the given version to this version using the index values.
boolean	equals(Object obj)
protected List<Long>	extractIndexes(String indexString) Extracts the indexes out of the given string as followes: 1.x.2.x => 1, null, 2, null
List<Long>	getIndexes() An empty list if no version is defined.
String	getIndexesString() Gets a string representation of the indexes as followes: 1, null, 2, null => 1.x.2.x
Long	getScriptIndex() Gets the last index in the list.
int	hashCode()
void	setIndexes(List<Long> indexes) Sets the indexes.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Version

public Version(List<Long> indexes)

Creates a new version.

Parameters:

indexes - The script indexes, not null

timeStamp - The script timestamp

Version

public Version(String indexString)

Creates a new version.

Parameters:

indexString - The indexes as a string

Method Detail

getIndexes

public List<Long> getIndexes()

An empty list if no version is defined.

Returns:

The script index, not null

getScriptIndex

public Long getScriptIndex()

Gets the last index in the list.

Returns:

The last index, null if there is no last index

setIndexes

public void setIndexes(List<Long> indexes)

Sets the indexes. Use an empty list if no version is defined.

Parameters:

indexes - The script indexes, not null

getIndexesString

public String getIndexesString()

Gets a string representation of the indexes as followes: 1, null, 2, null => 1.x.2.x

Returns:

The string, not null

extractIndexes

protected List<Long> extractIndexes(String indexString)

Extracts the indexes out of the given string as followes: 1.x.2.x => 1, null, 2, null

Parameters:

indexString - The string

Returns:

The list of longs or nulls in case of 'x'

toString

public String toString()

Overrides:

toString in class Object

Returns:

The string representation of the version.

compareTo

public int compareTo(Version otherVersion)

Compares the given version to this version using the index values.

If both scripts have an index, the index is used. If one of the scripts has an index, it is considerer lower than the script that does not have an index.

Specified by:

compareTo in interface Comparable<Version>

Parameters:

otherVersion - The other version, not null

Returns:

-1 when this version is smaller, 0 if equal, 1 when larger

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object