org.pentaho.packageManagement
Class VersionRangePackageConstraint

java.lang.Object
  org.pentaho.packageManagement.PackageConstraint
      org.pentaho.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)

Field Summary

protected boolean	m_boundOr is false for version1 <= package <= version2
protected String	m_lowerBound the lower bound
protected VersionPackageConstraint.VersionComparison	m_lowerConstraint the comparison for the lower bound
protected String	m_upperBound the upper bound
protected VersionPackageConstraint.VersionComparison	m_upperConstraint the comparison for the upper bound

Fields inherited from class org.pentaho.packageManagement.PackageConstraint

m_thePackage

Constructor Summary

VersionRangePackageConstraint(Package p)
Constructor

Method Summary

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.
protected static boolean	checkConstraint(String toCheck, VersionPackageConstraint.VersionComparison comp1, String bound1, VersionPackageConstraint.VersionComparison comp2, String bound2, boolean boundOr)
protected PackageConstraint	checkTargetVersionPackageConstraint(VersionPackageConstraint target)
protected PackageConstraint	checkTargetVersionRangePackageConstraint(VersionRangePackageConstraint target)
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 org.pentaho.packageManagement.PackageConstraint

getPackage, setPackage

Methods inherited from class java.lang.Object

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

Field Detail

m_lowerBound

protected String m_lowerBound

the lower bound

m_lowerConstraint

protected VersionPackageConstraint.VersionComparison m_lowerConstraint

the comparison for the lower bound

m_upperBound

protected String m_upperBound

the upper bound

m_upperConstraint

protected VersionPackageConstraint.VersionComparison m_upperConstraint

the comparison for the upper bound

m_boundOr

protected boolean m_boundOr

is false for version1 <= package <= version2

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

protected static boolean checkConstraint(String toCheck,
                                         VersionPackageConstraint.VersionComparison comp1,
                                         String bound1,
                                         VersionPackageConstraint.VersionComparison comp2,
                                         String bound2,
                                         boolean boundOr)

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.

checkTargetVersionRangePackageConstraint

protected PackageConstraint checkTargetVersionRangePackageConstraint(VersionRangePackageConstraint target)
                                                              throws Exception

Throws:

Exception

checkTargetVersionPackageConstraint

protected PackageConstraint checkTargetVersionPackageConstraint(VersionPackageConstraint target)
                                                         throws Exception

Throws:

Exception

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