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  /*
   * Copyright (c) OSGi Alliance (2012). All Rights Reserved.
   * 
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 
 package org.osgi.framework.namespace;
 
Package Capability and Requirement Namespace.

A resource provides zero or more package capabilities (this is, exported packages) and requires zero or more package requirements (that is, imported packages).

This class defines the names for the attributes and directives for this namespace. All unspecified capability attributes are of type String and are used as arbitrary matching attributes for the capability. The values associated with the specified directive and attribute keys are of type String, unless otherwise indicated.

Unless otherwise noted, all directives specified on the Export-Package header are visible in the capability and all directives specified on the Import-Package and DynamicImport-Package headers are visible in the requirement.

  • The effective directives must be ignored. This namespace is only effective at resolve time. An effective directive specified on the Export-Package, Import-Package or DynamicImport-Package headers must be ignored. An effective directive must not be present in a capability or requirement.
  • The cardinality directive has limited applicability to this namespace. A cardinality directive specified on the Import-Package or DynamicImport-Package headers must be ignored. Only requirements with resolution set to dynamic and the package name contains a wildcard must have the cardinality directive set to multiple. Otherwise, a cardinality directive must not be present in a requirement.

Version:
$Id: 5adc45bd1ae26120cbff3562c7c8cefc01e38bd3 $
Immutable:
 
 public final class PackageNamespace extends AbstractWiringNamespace {

Namespace name for package capabilities and requirements.

Also, the capability attribute used to specify the name of the package.

 
 	public static final String	PACKAGE_NAMESPACE"osgi.wiring.package";

The capability directive used to specify the comma separated list of classes which must be allowed to be exported.
 
 	public final static String	CAPABILITY_INCLUDE_DIRECTIVE"include";

The capability directive used to specify the comma separated list of classes which must not be allowed to be exported.
 
 	public final static String	CAPABILITY_EXCLUDE_DIRECTIVE"exclude";

The capability attribute contains the Version of the package if one is specified or 0.0.0 if not specified. The value of this attribute must be of type Version.
 
 	public final static String	CAPABILITY_VERSION_ATTRIBUTE"version";

The capability attribute contains the symbolic name of the resource providing the package.
 
 	public final static String	CAPABILITY_BUNDLE_SYMBOLICNAME_ATTRIBUTE"bundle-symbolic-name";

The directive value identifying a dynamic requirement resolution type. A dynamic resolution type indicates that the requirement is resolved dynamically at runtime (such as a dynamically imported package) and the resource will be resolved without the requirement being resolved.

	public final static String	RESOLUTION_DYNAMIC"dynamic";
	private PackageNamespace() {
		// empty
	}
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