VersionConstraint

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org.eclipse.osgi.service.resolver
Interface VersionConstraint

All Superinterfaces:: java.lang.Cloneable

All Known Subinterfaces:: BundleSpecification, HostSpecification, PackageSpecification

public interface VersionConstraint
extends java.lang.Cloneable

VersionConstraints represent the relationship between two bundles (in the case of bundle requires) or a bundle and a package (in the case of import/export).

Method Summary

Version getActualVersion()
          Returns the actual version this constraint was resolved against, or null if it is not resolved.

BundleDescription getBundle()
          Returns the bundle that declares this constraint.

java.lang.String getName()
          Returns this constraint's name.

BundleDescription getSupplier()
          Returns the bundle that satisfies this constraint, if it is resolved.

VersionRange getVersionRange()
          Returns the version range for this constraint.

boolean isResolved()
          Returns whether this constraint is resolved.

boolean isSatisfiedBy(Version version)
          Returns whether this constraint could be satisfied by the given version.

Method Detail

getName

public java.lang.String getName()

Returns this constraint's name.

getActualVersion

public Version getActualVersion()

Returns the actual version this constraint was resolved against, or null if it is not resolved.

getVersionRange

public VersionRange getVersionRange()

Returns the version range for this constraint.

getBundle

public BundleDescription getBundle()

Returns the bundle that declares this constraint.

getSupplier

public BundleDescription getSupplier()

Returns the bundle that satisfies this constraint, if it is resolved.

isResolved

public boolean isResolved()

Returns whether this constraint is resolved. A resolved constraint is guaranteed to have its supplier defined.

isSatisfiedBy

public boolean isSatisfiedBy(Version version)

Returns whether this constraint could be satisfied by the given version. This will depend on the required version, the given version, and the matching rule. A constraint that does not declare a required version is satisfiable by any version.