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author | lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68> | 2009-11-11 23:26:33 +0000 |
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committer | lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68> | 2009-11-11 23:26:33 +0000 |
commit | a40e527938d76ba71f211da7e327adb50384ba69 (patch) | |
tree | cb8f99f1727122b040a3f0fbb6649292b6a74302 /sca-java-1.x/tags/1.3.2/modules/sca-api/src/main/java/org/osoa/sca/ComponentContext.java | |
parent | 968721109881107520d7aefa91d7fcc0519d7739 (diff) |
Moving 1.x tags
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@835157 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'sca-java-1.x/tags/1.3.2/modules/sca-api/src/main/java/org/osoa/sca/ComponentContext.java')
-rw-r--r-- | sca-java-1.x/tags/1.3.2/modules/sca-api/src/main/java/org/osoa/sca/ComponentContext.java | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.3.2/modules/sca-api/src/main/java/org/osoa/sca/ComponentContext.java b/sca-java-1.x/tags/1.3.2/modules/sca-api/src/main/java/org/osoa/sca/ComponentContext.java new file mode 100644 index 0000000000..7deea08001 --- /dev/null +++ b/sca-java-1.x/tags/1.3.2/modules/sca-api/src/main/java/org/osoa/sca/ComponentContext.java @@ -0,0 +1,98 @@ +/* + * (c) Copyright BEA Systems, Inc., Cape Clear Software, International Business Machines Corp, Interface21, IONA Technologies, + * Oracle, Primeton Technologies, Progress Software, Red Hat, Rogue Wave Software, SAP AG., Siemens AG., Software AG., Sybase + * Inc., TIBCO Software Inc., 2005, 2007. All rights reserved. + * + * see http://www.osoa.org/display/Main/Service+Component+Architecture+Specifications + */ +package org.osoa.sca; + +/** + * Interface providing programmatic access to a component's SCA context as an alternative to injection. + * It provides access to reference and property values for the component and provides a mechanism for + * obtaining a reference to a service that can be passed to other components. + * <p/> + * SCA components obtain an instance of this interface through injection. Non-SCA client code may also + * obtain an instance through runtime-specific mechanisms. + * + * @version $Rev$ $Date$ + */ +public interface ComponentContext { + /** + * Returns the absolute URI of the component within the SCA Domain. + * + * @return the absolute URI of the component + */ + String getURI(); + + /** + * Cast a type-safe reference to a CallableReference. + * Converts a type-safe reference to an equivalent CallableReference; if the target refers to a service + * then a ServiceReference will be returned, if the target refers to a callback then a CallableReference + * will be returned. + * + * @param target a reference proxy provided by the SCA runtime + * @param <B> the Java type of the business interface for the reference + * @param <R> the type of reference to be returned + * @return a CallableReference equivalent for the proxy + * @throws IllegalArgumentException if the supplied instance is not a reference supplied by the SCA runtime + */ + <B, R extends CallableReference<B>> R cast(B target) throws IllegalArgumentException; + + /** + * Returns a proxy for a reference defined by this component. + * + * @param businessInterface the interface that will be used to invoke the service + * @param referenceName the name of the reference + * @param <B> the Java type of the business interface for the reference + * @return an object that implements the business interface + */ + <B> B getService(Class<B> businessInterface, String referenceName); + + /** + * Returns a ServiceReference for a reference defined by this component. + * + * @param businessInterface the interface that will be used to invoke the service + * @param referenceName the name of the reference + * @param <B> the Java type of the business interface for the reference + * @return a ServiceReference for the designated reference + */ + <B> ServiceReference<B> getServiceReference(Class<B> businessInterface, String referenceName); + + /** + * Returns the value of an SCA property defined by this component. + * + * @param type the Java type to be returned for the property + * @param propertyName the name of the property whose value should be returned + * @param <B> the Java type of the property + * @return the property value + */ + <B> B getProperty(Class<B> type, String propertyName); + + /** + * Returns a ServiceReference that can be used to invoke this component over the default service. + * + * @param businessInterface the interface that will be used to invoke the service + * @param <B> the Java type of the business interface for the reference + * @return a ServiceReference that will invoke this component + */ + <B> ServiceReference<B> createSelfReference(Class<B> businessInterface); + + /** + * Returns a ServiceReference that can be used to invoke this component over the designated service. + * + * @param businessInterface the interface that will be used to invoke the service + * @param serviceName the name of the service to invoke + * @param <B> the Java type of the business interface for the reference + * @return a ServiceReference that will invoke this component + */ + <B> ServiceReference<B> createSelfReference(Class<B> businessInterface, String serviceName); + + /** + * Returns the context for the current SCA service request, or null if there is no current request + * or if the context is unavailable. + * + * @return the SCA request context; may be null + */ + RequestContext getRequestContext(); +} |