weka.core.packageManagement

Class VersionRangePackageConstraint

java.lang.Object

weka.core.packageManagement.PackageConstraint

weka.core.packageManagement.VersionRangePackageConstraint

public class VersionRangePackageConstraint
extends PackageConstraint

A concrete implementation of PackgageConstraint that encapsulates ranged version number constraints. Handles constraints of the form (u.v.w < package < x.y.z) and (package < u.v.w OR package > x.y.z)

Version:

$Revision: 44030 $

Author:

Mark Hall (mhall{[at]}pentaho{[dot]}com)

Constructor Summary

Constructors

Constructor and Description
VersionRangePackageConstraint(Package p) Constructor

Method Summary

Modifier and Type	Method and Description
boolean	checkConstraint(Package target) Check the target package against the constraint embodied in this PackageConstraint.
PackageConstraint	checkConstraint(PackageConstraint target) Check the target package constraint against the constraint embodied in this package constraint.
String	getLowerBound() Get the lower bound of this range
VersionPackageConstraint.VersionComparison	getLowerComparison() Get the lower comparison
String	getUpperBound() Get the upper bound of this range
VersionPackageConstraint.VersionComparison	getUpperComparison() Get the upper comparison
boolean	isBoundOR() Returns true if this is a bounded OR type of constraint
void	setRangeConstraint(String bound1, VersionPackageConstraint.VersionComparison comp1, String bound2, VersionPackageConstraint.VersionComparison comp2) Set the range bounds and constraints.

Methods inherited from class weka.core.packageManagement.PackageConstraint

getPackage, setPackage

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

VersionRangePackageConstraint

public VersionRangePackageConstraint(Package p)

Constructor

Parameters:

p - the package to base this constraint on

Method Detail

setRangeConstraint

public void setRangeConstraint(String bound1,
                               VersionPackageConstraint.VersionComparison comp1,
                               String bound2,
                               VersionPackageConstraint.VersionComparison comp2)
                        throws Exception

Set the range bounds and constraints.

Parameters:

bound1 - the first bound

comp1 - the first comparison

bound2 - the second bound

comp2 - the second comparison

Throws:

Exception - if the range constraint is malformed

getLowerBound

public String getLowerBound()

Get the lower bound of this range

Returns:

the lower bound

getUpperBound

public String getUpperBound()

Get the upper bound of this range

Returns:

the upper bound

getLowerComparison

public VersionPackageConstraint.VersionComparison getLowerComparison()

Get the lower comparison

Returns:

the lower comparison

getUpperComparison

public VersionPackageConstraint.VersionComparison getUpperComparison()

Get the upper comparison

Returns:

the upper comparison

isBoundOR

public boolean isBoundOR()

Returns true if this is a bounded OR type of constraint

Returns:

true if this is a bounded OR type of constraint

checkConstraint

public boolean checkConstraint(Package target)
                        throws Exception

Check the target package against the constraint embodied in this PackageConstraint.

Specified by:

checkConstraint in class PackageConstraint

Parameters:

target - a package to check with respect to the encapsulated package and the constraint.

Returns:

true if the constraint is met by the target package with respect to the encapsulated package + constraint.

Throws:

Exception - if the constraint can't be checked for some reason.

checkConstraint

public PackageConstraint checkConstraint(PackageConstraint target)
                                  throws Exception

Description copied from class: PackageConstraint

Check the target package constraint against the constraint embodied in this package constraint. Returns either the package constraint that covers both this and the target constraint, or null if this and the target are incompatible.

Specified by:

checkConstraint in class PackageConstraint

Parameters:

target - the package constraint to compare against

Returns:

a package constraint that covers this and the supplied constraint, or null if they are incompatible.

Throws:

Exception