org.kuali.rice.core.ojb
Class ContextClassLoaderCollectionProxy

java.lang.Object
  org.apache.ojb.broker.core.proxy.CollectionProxyDefaultImpl
      org.kuali.rice.core.ojb.ContextClassLoaderCollectionProxy

All Implemented Interfaces:

Serializable, Iterable, Collection, org.apache.ojb.broker.core.proxy.CollectionProxy, org.apache.ojb.broker.ManageableCollection

public class ContextClassLoaderCollectionProxy
extends org.apache.ojb.broker.core.proxy.CollectionProxyDefaultImpl

Sets up the context classloader properly for OJB proxies. The sequence of events in the super class is as follows:

 public synchronized Collection getData()
 {
    if (!isLoaded())
    {
      beforeLoading();
      setData(loadData());
      afterLoading();
    }
    return _data;
 }
 

Therefore, since there is no try-catch-finally in conjunction with this call, we need to handle exceptions thrown from loadData and unbind the classloader appropriately.

See Also:

Serialized Form

Field Summary

private ClassLoader	contextClassLoader
private static long	serialVersionUID

Constructor Summary

ContextClassLoaderCollectionProxy(org.apache.ojb.broker.PBKey aKey, Class aCollClass, org.apache.ojb.broker.query.Query aQuery)

ContextClassLoaderCollectionProxy(org.apache.ojb.broker.PBKey aKey, org.apache.ojb.broker.query.Query aQuery)

Method Summary

protected void	afterLoading()
protected void	beforeLoading()
protected Collection	loadData()

Methods inherited from class org.apache.ojb.broker.core.proxy.CollectionProxyDefaultImpl

add, addAll, addListener, afterStore, clear, contains, containsAll, getBroker, getBrokerKey, getCollectionClass, getData, getProfileKey, getQuery, isEmpty, isLoaded, iterator, loadProfileIfNeeded, loadSize, ojbAdd, ojbAddAll, ojbIterator, releaseBroker, remove, removeAll, removeListener, retainAll, setBrokerKey, setCollectionClass, setData, setProfileKey, setQuery, setSize, size, toArray, toArray

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Collection

equals, hashCode

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

contextClassLoader

private transient ClassLoader contextClassLoader

Constructor Detail

ContextClassLoaderCollectionProxy

public ContextClassLoaderCollectionProxy(org.apache.ojb.broker.PBKey aKey,
                                         Class aCollClass,
                                         org.apache.ojb.broker.query.Query aQuery)

ContextClassLoaderCollectionProxy

public ContextClassLoaderCollectionProxy(org.apache.ojb.broker.PBKey aKey,
                                         org.apache.ojb.broker.query.Query aQuery)

Method Detail

beforeLoading

protected void beforeLoading()

Overrides:

beforeLoading in class org.apache.ojb.broker.core.proxy.CollectionProxyDefaultImpl

loadData

protected Collection loadData()
                       throws org.apache.ojb.broker.PersistenceBrokerException

Overrides:

loadData in class org.apache.ojb.broker.core.proxy.CollectionProxyDefaultImpl

Throws:

org.apache.ojb.broker.PersistenceBrokerException

afterLoading

protected void afterLoading()

Overrides:

afterLoading in class org.apache.ojb.broker.core.proxy.CollectionProxyDefaultImpl