Package org.alfresco.repo.module

Class ModuleVersionNumber

java.lang.Object

org.alfresco.repo.module.ModuleVersionNumber

All Implemented Interfaces:

Externalizable, Serializable

public class ModuleVersionNumber
extends Object
implements Externalizable

The exising Alfresco VersionNumber can only be numeric. ModuleVersionNumber allows string literals in the version number. It follows maven conventions and actually uses the ComparableVersion class from the maven code base.

Author:

Gethin James

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected org.apache.maven.artifact.versioning.ComparableVersion	delegate
static ModuleVersionNumber	VERSION_BIG
static ModuleVersionNumber	VERSION_ZERO

Constructor Summary

Constructors

Constructor	Description
ModuleVersionNumber()
ModuleVersionNumber(String versionString)
ModuleVersionNumber(VersionNumber versionCurrent)

Method Summary

Modifier and Type	Method	Description
int	compareTo(ModuleVersionNumber installingVersion)	Now that we create internal releases of the form M.m.r-M9 (milestone), M.m.r-A9 (alpha) and M.m.r-RC9 (release candidate) during development and testing, we need to ensure we can upgrade from any of these to any other, as they may occur in any order and also to the final external release M.m.r.
boolean	equals(Object obj)
int	hashCode()
void	readExternal(ObjectInput in)
String	toString()
void	writeExternal(ObjectOutput out)

Methods inherited from class java.lang.Object

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

Field Detail

VERSION_ZERO

public static final ModuleVersionNumber VERSION_ZERO

VERSION_BIG

public static final ModuleVersionNumber VERSION_BIG

delegate

protected org.apache.maven.artifact.versioning.ComparableVersion delegate

Constructor Detail

ModuleVersionNumber

public ModuleVersionNumber()

ModuleVersionNumber

public ModuleVersionNumber(String versionString)

ModuleVersionNumber

public ModuleVersionNumber(VersionNumber versionCurrent)

Method Detail

compareTo

public int compareTo(ModuleVersionNumber installingVersion)

Now that we create internal releases of the form M.m.r-M9 (milestone), M.m.r-A9 (alpha) and M.m.r-RC9 (release candidate) during development and testing, we need to ensure we can upgrade from any of these to any other, as they may occur in any order and also to the final external release M.m.r. We also will allow a change from the final release back to an internal one for regression testing. The code within ModuleComponentHelper which calls this method, checks if it is the same version (0) and then if it is downgrading (> 0), so if they share the same M.m.r part matches AND is one of these formats, we return <0.

Parameters:

installingVersion - the new version

Returns:

a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException