Package org.osgi.resource

# Interface Resource

All Known Subinterfaces:
  `BundleRevision`

@ConsumerType 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.

## Method Summary

Modifier and Type
Method
Description
`boolean`
`equals(Object obj)`
Compares this `Resource` to another `Resource`.
`List<Capability>`
`getCapabilities(String namespace)`
Returns the capabilities declared by this resource.
`List<Requirement>`
`getRequirements(String namespace)`
Returns the requirements declared by this bundle resource.
`int`
`hashCode()`
Returns the hashCode of this `Resource`.

## Method Details

### getCapabilities

List<Capability> getCapabilities(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 `Capability`s from the specified namespace. The returned list will be empty if this resource declares no capabilities in the specified namespace.

### getRequirements

List<Requirement> getRequirements(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(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 `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 `Object`
Returns:
  The hashCode of this `Resource`.