org.osgi.resource
Interface Resource

All Known Subinterfaces:

BundleRevision

public interface Resource

A resource is the representation of a uniquely identified and typed data. A resource declares requirements that need to be satisfied by capabilities before it can provide its capabilities.

Instances of this type must be effectively immutable. That is, for a given instance of this interface, the methods defined by this interface must always return the same result.

ThreadSafe

Method Summary

boolean	equals(java.lang.Object obj) Compares this Resource to another Resource.
java.util.List<Capability>	getCapabilities(java.lang.String namespace) Returns the capabilities declared by this resource.
java.util.List<Requirement>	getRequirements(java.lang.String namespace) Returns the requirements declared by this bundle resource.
int	hashCode() Returns the hashCode of this Resource.

Method Detail

getCapabilities

java.util.List<Capability> getCapabilities(java.lang.String namespace)

Returns the capabilities declared by this resource.

Parameters:

namespace - The namespace of the declared capabilities to return or null to return the declared capabilities from all namespaces.

Returns:

An unmodifiable list containing the declared Capabilitys from the specified namespace. The returned list will be empty if this resource declares no capabilities in the specified namespace.

getRequirements

java.util.List<Requirement> getRequirements(java.lang.String namespace)

Returns the requirements declared by this bundle resource.

Parameters:

namespace - The namespace of the declared requirements to return or null to return the declared requirements from all namespaces.

Returns:

An unmodifiable list containing the declared Requirement s from the specified namespace. The returned list will be empty if this resource declares no requirements in the specified namespace.

equals

boolean equals(java.lang.Object obj)

Compares this Resource to another Resource.

This Resource is equal to another Resource if both have the same content and come from the same location. Location may be defined as the bundle location if the resource is an installed bundle or the repository location if the resource is in a repository.

Overrides:

equals in class java.lang.Object

Parameters:

obj - The object to compare against this Resource.

Returns:

true if this Resource is equal to the other object; false otherwise.

hashCode

int hashCode()

Returns the hashCode of this Resource.

Overrides:

hashCode in class java.lang.Object

Returns:

The hashCode of this Resource.