org.eclipse.equinox.internal.p2.metadata

Class RequiredPropertiesMatch

java.lang.Object

org.eclipse.equinox.internal.p2.metadata.Requirement

org.eclipse.equinox.internal.p2.metadata.RequiredPropertiesMatch

All Implemented Interfaces:

IMemberProvider, IRequirement

public class RequiredPropertiesMatch
extends Requirement

A required capability match represents some external constraint on an IInstallableUnit.

This is a flavor of the general IRequirement that searches for a capability that has properties that match a given expression. I.e. this is much more limited that an arbitrary match expression executed over all metadata of the IU.

Field Summary

Fields inherited from class org.eclipse.equinox.internal.p2.metadata.Requirement

description, filter, greedy, matchExpression, max, MEMBER_FILTER, MEMBER_GREEDY, MEMBER_MATCH, MEMBER_MAX, MEMBER_MIN, min

Constructor Summary

Constructors

Constructor and Description
RequiredPropertiesMatch(java.lang.String namespace, IFilterExpression attrFilter, IMatchExpression<IInstallableUnit> envFilter, int min, int max, boolean greedy, java.lang.String description)

Method Summary

Modifier and Type	Method and Description
static IMatchExpression<IInstallableUnit>	createMatchExpressionFromFilter(java.lang.String namespace, IFilterExpression attrFilter, java.lang.String description)
static java.lang.String	extractNamespace(IMatchExpression<IInstallableUnit> matchExpression)
static IFilterExpression	extractPropertiesMatch(IMatchExpression<IInstallableUnit> matchExpression)
static boolean	isPropertiesMatchRequirement(IMatchExpression<IInstallableUnit> matchExpression)
java.lang.String	toString()

Methods inherited from class org.eclipse.equinox.internal.p2.metadata.Requirement

equals, getDescription, getFilter, getMatches, getMax, getMember, getMin, hashCode, isGreedy, isMatch

Methods inherited from class java.lang.Object

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

Constructor Detail

RequiredPropertiesMatch

public RequiredPropertiesMatch(java.lang.String namespace,
                               IFilterExpression attrFilter,
                               IMatchExpression<IInstallableUnit> envFilter,
                               int min,
                               int max,
                               boolean greedy,
                               java.lang.String description)

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class Requirement

createMatchExpressionFromFilter

public static IMatchExpression<IInstallableUnit> createMatchExpressionFromFilter(java.lang.String namespace,
                                                                                 IFilterExpression attrFilter,
                                                                                 java.lang.String description)

extractNamespace

public static java.lang.String extractNamespace(IMatchExpression<IInstallableUnit> matchExpression)

extractPropertiesMatch

public static IFilterExpression extractPropertiesMatch(IMatchExpression<IInstallableUnit> matchExpression)

isPropertiesMatchRequirement

public static boolean isPropertiesMatchRequirement(IMatchExpression<IInstallableUnit> matchExpression)