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Java Source Code / Java Documentation » Database ORM » db ojb » org.apache.ojb.broker.accesslayer   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.apache.ojb.broker.accesslayer.BasePrefetcher All known Subclasses:   org.apache.ojb.broker.accesslayer.RelationshipPrefetcherImpl,  org.apache.ojb.broker.accesslayer.PlainPrefetcher, BasePrefetcher abstract public class BasePrefetcher implements RelationshipPrefetcher(Code) Abstract Prefetcher. author:    Oleg Nitz version:    $Id: BasePrefetcher.java,v 1.10.2.3 2005/12/29 22:47:48 tomdz Exp $ Field Summary final protected static  int IN_LIMIT      The numer of columns to query for. protected  ClassDescriptor itemClassDesc      Class descriptor for the item type. final protected  int pkLimit      Maximum number of pk's in one query. Constructor Summary public   BasePrefetcher(PersistenceBrokerImpl aBroker, Class anItemClass)      Constructor for BasePrefetcher. Method Summary abstract protected  void associateBatched(Collection owners, Collection children)      protected  Criteria buildPrefetchCriteria(Collection ids, FieldDescriptor[] fields)      abstract protected  Query[] buildPrefetchQueries(Collection owners, Collection children)      protected  QueryByCriteria buildPrefetchQuery(Collection ids, FieldDescriptor[] fields)      protected  QueryByCriteria buildPrefetchQuery(Class clazz, Collection ids, FieldDescriptor[] fields)      protected  PersistenceBrokerImpl getBroker()      Returns the broker. protected  DescriptorRepository getDescriptorRepository()      public  ClassDescriptor getItemClassDescriptor()      public  int getLimit()      protected  Logger getLogger()      Returns the logger. public  void prefetchRelationship(Collection owners)      Field Detail IN_LIMIT final protected static int IN_LIMIT(Code) The numer of columns to query for. itemClassDesc protected ClassDescriptor itemClassDesc(Code) Class descriptor for the item type. pkLimit final protected int pkLimit(Code) Maximum number of pk's in one query. Constructor Detail BasePrefetcher public BasePrefetcher(PersistenceBrokerImpl aBroker, Class anItemClass)(Code) Constructor for BasePrefetcher. Method Detail associateBatched abstract protected void associateBatched(Collection owners, Collection children)(Code) associate the batched Children with their owner object buildPrefetchCriteria protected Criteria buildPrefetchCriteria(Collection ids, FieldDescriptor[] fields)(Code) Parameters:   ids - collection of identities Parameters:   fields - buildPrefetchQueries abstract protected Query[] buildPrefetchQueries(Collection owners, Collection children)(Code) buildPrefetchQuery protected QueryByCriteria buildPrefetchQuery(Collection ids, FieldDescriptor[] fields)(Code) buildPrefetchQuery protected QueryByCriteria buildPrefetchQuery(Class clazz, Collection ids, FieldDescriptor[] fields)(Code) Parameters:   clazz - Parameters:   ids - collection of identities Parameters:   fields - getBroker protected PersistenceBrokerImpl getBroker()(Code) Returns the broker. PersistenceBrokerImpl getDescriptorRepository protected DescriptorRepository getDescriptorRepository()(Code) Return the DescriptorRepository getItemClassDescriptor public ClassDescriptor getItemClassDescriptor()(Code) Returns the ClassDescriptor of the item Class ClassDescriptor getLimit public int getLimit()(Code) The limit of objects loaded by one SQL query getLogger protected Logger getLogger()(Code) Returns the logger. Logger prefetchRelationship public void prefetchRelationship(Collection owners)(Code) See Also:   org.apache.ojb.broker.accesslayer.RelationshipPrefetcher.prefetchRelationship(Collection) 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)