Java Doc for QueryReferenceBroker.java in  » Database-ORM » db-ojb » org » apache » ojb » broker » core » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database ORM » db ojb » org.apache.ojb.broker.core   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.apache.ojb.broker.core.QueryReferenceBroker QueryReferenceBroker public class QueryReferenceBroker (Code) Encapsulates 1:1 and 1:n references and collection references stuff. TODO: Should we made this class independend from PB implementation class and only use PB interface methods? author:    Armin Waibel version:    $Id: QueryReferenceBroker.java,v 1.17.2.17 2005/12/21 22:25:00 tomdz Exp $ Inner Class :class PBMaterializationListener extends PBPrefetchingListener implements MaterializationListener Inner Class :abstract class PBPrefetchingListener Inner Class :class PBCollectionProxyListener extends PBPrefetchingListener implements CollectionProxyListener Constructor Summary public   QueryReferenceBroker(PersistenceBrokerImpl pb)      Method Summary public  Class getClassToPrefetch()      public  ManageableCollection getCollectionByQuery(Class collectionClass, Query query, boolean lazy)      public  Collection getCollectionByQuery(Query query, boolean lazy)      public  Query getPKQuery(Identity oid)      public  void performRetrievalTasks()      public  void removePrefetchingListeners()      public  void retrieveCollection(Object obj, ClassDescriptor cld, CollectionDescriptor cds, boolean forced)      Retrieve a single Collection on behalf of obj. The Collection is retrieved only if cascade.retrieve is true or if forced is set to true. public  void retrieveCollections(Object newObj, ClassDescriptor cld, boolean forced)      public  void retrieveProxyCollection(Object obj, ClassDescriptor cld, CollectionDescriptor cds, boolean forced)      Retrieve a single Proxied Collection on behalf of obj. The Collection is retrieved only if cascade.retrieve is true or if forced is set to true. public  void retrieveProxyCollections(Object newObj, ClassDescriptor cld, boolean forced)      public  void retrieveProxyReference(Object obj, ClassDescriptor cld, ObjectReferenceDescriptor rds, boolean forced)      Retrieve a single Reference. public  void retrieveProxyReferences(Object newObj, ClassDescriptor cld, boolean forced)      public  void retrieveReference(Object obj, ClassDescriptor cld, ObjectReferenceDescriptor rds, boolean forced)      Retrieve a single Reference. public  void retrieveReferences(Object newObj, ClassDescriptor cld, boolean forced)      Constructor Detail QueryReferenceBroker public QueryReferenceBroker(PersistenceBrokerImpl pb)(Code) Method Detail getClassToPrefetch public Class getClassToPrefetch()(Code) getCollectionByQuery public ManageableCollection getCollectionByQuery(Class collectionClass, Query query, boolean lazy) throws PersistenceBrokerException(Code) retrieve a collection of type collectionClass matching the Query query if lazy = true return a CollectionProxy Parameters:   collectionClass - Parameters:   query - Parameters:   lazy - ManageableCollection throws:   PersistenceBrokerException - getCollectionByQuery public Collection getCollectionByQuery(Query query, boolean lazy) throws PersistenceBrokerException(Code) retrieve a collection of itemClass Objects matching the Query query getPKQuery public Query getPKQuery(Identity oid)(Code) Answer the primary key query to retrieve an Object Parameters:   oid - the Identity of the Object to retrieve The resulting query performRetrievalTasks public void performRetrievalTasks()(Code) Perform the stored retrieval tasks BRJ: made it public to access it from BasePrefetcher TODO: this is a quick fix ! removePrefetchingListeners public void removePrefetchingListeners()(Code) remove all prefetching listeners retrieveCollection public void retrieveCollection(Object obj, ClassDescriptor cld, CollectionDescriptor cds, boolean forced)(Code) Retrieve a single Collection on behalf of obj. The Collection is retrieved only if cascade.retrieve is true or if forced is set to true. * Parameters:   obj - - the object to be updated Parameters:   cld - - the ClassDescriptor describing obj Parameters:   cds - - the CollectionDescriptor describing the collection attribute to be loaded Parameters:   forced - - if set to true loading is forced, even if cds differs. retrieveCollections public void retrieveCollections(Object newObj, ClassDescriptor cld, boolean forced) throws PersistenceBrokerException(Code) Retrieve all Collection attributes of a given instance Parameters:   newObj - the instance to be loaded or refreshed Parameters:   cld - the ClassDescriptor of the instance Parameters:   forced - if set to true, loading is forced even if cld differs retrieveProxyCollection public void retrieveProxyCollection(Object obj, ClassDescriptor cld, CollectionDescriptor cds, boolean forced)(Code) Retrieve a single Proxied Collection on behalf of obj. The Collection is retrieved only if cascade.retrieve is true or if forced is set to true. * Parameters:   obj - - the object to be updated Parameters:   cld - - the ClassDescriptor describing obj Parameters:   cds - - the CollectionDescriptor describing the collection attribute to be loaded Parameters:   forced - - if set to true a proxy will be placed, even if cds differs. retrieveProxyCollections public void retrieveProxyCollections(Object newObj, ClassDescriptor cld, boolean forced) throws PersistenceBrokerException(Code) Retrieve all Collection attributes of a given instance, and make all of the Proxy Collections Parameters:   newObj - the instance to be loaded or refreshed Parameters:   cld - the ClassDescriptor of the instance Parameters:   forced - if set to true, loading is forced even if cld differs retrieveProxyReference public void retrieveProxyReference(Object obj, ClassDescriptor cld, ObjectReferenceDescriptor rds, boolean forced)(Code) Retrieve a single Reference. This implementation retrieves a referenced object from the data backend if cascade-retrieve is true or if forced is true. Parameters:   obj - - object that will have it's field set with a referenced object. Parameters:   cld - - the ClassDescriptor describring obj Parameters:   rds - - the ObjectReferenceDescriptor of the reference attribute to be loaded Parameters:   forced - - if set to true, the reference is loaded even if the rds differs. retrieveProxyReferences public void retrieveProxyReferences(Object newObj, ClassDescriptor cld, boolean forced) throws PersistenceBrokerException(Code) Retrieve all References Parameters:   newObj - the instance to be loaded or refreshed Parameters:   cld - the ClassDescriptor of the instance Parameters:   forced - if set to true loading is forced even if cld differs. retrieveReference public void retrieveReference(Object obj, ClassDescriptor cld, ObjectReferenceDescriptor rds, boolean forced)(Code) Retrieve a single Reference. This implementation retrieves a referenced object from the data backend if cascade-retrieve is true or if forced is true. Parameters:   obj - - object that will have it's field set with a referenced object. Parameters:   cld - - the ClassDescriptor describring obj Parameters:   rds - - the ObjectReferenceDescriptor of the reference attribute to be loaded Parameters:   forced - - if set to true, the reference is loaded even if the rds differs. retrieveReferences public void retrieveReferences(Object newObj, ClassDescriptor cld, boolean forced) throws PersistenceBrokerException(Code) Retrieve all References Parameters:   newObj - the instance to be loaded or refreshed Parameters:   cld - the ClassDescriptor of the instance Parameters:   forced - if set to true loading is forced even if cld differs. Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)