Examples of org.eclipse.persistence.descriptors.DescriptorEvent

Package org.eclipse.persistence.descriptors

Examples of org.eclipse.persistence.descriptors.DescriptorEvent

org.eclipse.persistence.descriptors.DescriptorEvent

Purpose: Encapsulate the information provided with descriptor events. This is used as the argument to any event raised by the descriptor. Events can be registered for through two methods, the first is by providing a method to be called on the object that a particular operation is being performed on. The second is by registering a manager object to be notified when any event occurs for that descriptor. The second method is more similar to the java beans event model but requires the registered object to implement the DescriptorEventListener interface. @see DescriptorEventManager @see DescriptorEventListener


        // PERF: Avoid events if no listeners.
        if (this.descriptor.getEventManager().hasAnyEventListeners()) {
            // Need to run post build or refresh selector, currently check with the query for this,
            // I'm not sure which should be called it case of refresh building a new object, currently refresh is used...
            DescriptorEvent event = new DescriptorEvent(clone);
            event.setQuery(query);
            event.setSession(unitOfWork);
            event.setRecord(databaseRow);
            if (forRefresh) {
                event.setEventCode(DescriptorEventManager.PostRefreshEvent);
            } else {
                event.setEventCode(DescriptorEventManager.PostBuildEvent);
                //fire a postBuildEvent then the postCloneEvent
                this.descriptor.getEventManager().executeEvent(event);
               
                //bug 259404: ensure postClone is called for objects built directly into the UnitOfWork
                //in this case, the original is the clone
                event.setOriginalObject(clone);
                event.setEventCode(DescriptorEventManager.PostCloneEvent);
            }
            this.descriptor.getEventManager().executeEvent(event);
            
            
        }

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            }
        }


        // PERF: Avoid events if no listeners.
        if (this.descriptor.getEventManager().hasAnyEventListeners()) {
            DescriptorEvent event = new DescriptorEvent(clone);
            event.setSession(unitOfWork);
            event.setOriginalObject(original);
            event.setEventCode(DescriptorEventManager.PostCloneEvent);
            this.descriptor.getEventManager().executeEvent(event);
        }
    }

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            }


            // HANDLE POST BUILD EVENTS
            ClassDescriptor xmlDescriptor = treeObjectBuilder.getDescriptor();
            if (xmlDescriptor.getEventManager().hasAnyEventListeners()) {
                DescriptorEvent event = new DescriptorEvent(object);
                event.setSession(session);
                event.setRecord(this);
                event.setEventCode(DescriptorEventManager.PostBuildEvent);
                xmlDescriptor.getEventManager().executeEvent(event);
            }
        } catch (EclipseLinkException e) {
            if (null == xmlReader.getErrorHandler()) {
                throw e;

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            ClassDescriptor descriptor = this.descriptor;
            DescriptorEventManager eventManager = descriptor.getEventManager();
            // PERF: Avoid events if no listeners.
            if (eventManager.hasAnyEventListeners()) {
                // Need to run pre-delete selector if available
                eventManager.executeEvent(new DescriptorEvent(DescriptorEventManager.PreDeleteEvent, this));
            }


            // Verify if deep shallow modify is turned on
            if (shouldCascadeParts()) {
                descriptor.getQueryManager().preDelete(this);
            }


            // CR#2660080 missing aboutToDelete event.    
            // PERF: Avoid events if no listeners.
            if (eventManager.hasAnyEventListeners()) {
                DescriptorEvent event = new DescriptorEvent(DescriptorEventManager.AboutToDeleteEvent, this);
                event.setRecord(getModifyRow());
                eventManager.executeEvent(event);
            }
            
            if (QueryMonitor.shouldMonitor()) {
                QueryMonitor.incrementDelete(this);
            }
            int rowCount = getQueryMechanism().deleteObject().intValue();


            if (rowCount < 1) {
                if (session.hasEventManager()) {
                    session.getEventManager().noRowsModified(this, object);
                }
            }


            if (descriptor.usesOptimisticLocking()) {
                descriptor.getOptimisticLockingPolicy().validateDelete(rowCount, object, this);
            }


            commitManager.markPostModifyCommitInProgress(getObject());
            // Verify if deep shallow modify is turned on
            if (shouldCascadeParts()) {
                descriptor.getQueryManager().postDelete(this);
            }


            if ((descriptor.getHistoryPolicy() != null) && descriptor.getHistoryPolicy().shouldHandleWrites()) {
                descriptor.getHistoryPolicy().postDelete(this);
            }


            // PERF: Avoid events if no listeners.
            if (eventManager.hasAnyEventListeners()) {
                // Need to run post-delete selector if available
                eventManager.executeEvent(new DescriptorEvent(DescriptorEventManager.PostDeleteEvent, this));
            }


            if (!isUnitOfWork) {
                session.commitTransaction();
            }

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        // PERF: Avoid events if no listeners.
        if (this.descriptor.getEventManager().hasAnyEventListeners()) {
            // Need to run post build or refresh selector, currently check with the query for this,
            // I'm not sure which should be called it case of refresh building a new object, currently refresh is used...
            DescriptorEvent event = new DescriptorEvent(clone);
            event.setQuery(query);
            event.setSession(unitOfWork);
            event.setRecord(databaseRow);
            if (forRefresh) {
                event.setEventCode(DescriptorEventManager.PostRefreshEvent);
            } else {
                event.setEventCode(DescriptorEventManager.PostBuildEvent);
                //fire a postBuildEvent then the postCloneEvent
                this.descriptor.getEventManager().executeEvent(event);
               
                //bug 259404: ensure postClone is called for objects built directly into the UnitOfWork
                //in this case, the original is the clone
                event.setOriginalObject(clone);
                event.setEventCode(DescriptorEventManager.PostCloneEvent);
            }
            this.descriptor.getEventManager().executeEvent(event);
            
            
        }

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            }
        }


        // PERF: Avoid events if no listeners.
        if (this.descriptor.getEventManager().hasAnyEventListeners()) {
            DescriptorEvent event = new DescriptorEvent(clone);
            event.setSession(unitOfWork);
            event.setOriginalObject(original);
            event.setEventCode(DescriptorEventManager.PostCloneEvent);
            this.descriptor.getEventManager().executeEvent(event);
        }
    }

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            }


            // HANDLE POST BUILD EVENTS
            ClassDescriptor xmlDescriptor = treeObjectBuilder.getDescriptor();
            if (xmlDescriptor.getEventManager().hasAnyEventListeners()) {
                DescriptorEvent event = new DescriptorEvent(currentObject);
                event.setSession(session);
                event.setRecord(this);
                event.setEventCode(DescriptorEventManager.PostBuildEvent);
                xmlDescriptor.getEventManager().executeEvent(event);
            }
        } catch (EclipseLinkException e) {
            if (null == xmlReader.getErrorHandler()) {
                throw e;

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            writeQuery.setObject(clone);
            writeQuery.setBackupClone(backUp);
            writeQuery.setSession(unitOfWork);
            writeQuery.setDescriptor(descriptor);


            descriptor.getEventManager().executeEvent(new DescriptorEvent(DescriptorEventManager.PreWriteEvent, writeQuery));


            if (isNew) {
                descriptor.getEventManager().executeEvent(new DescriptorEvent(DescriptorEventManager.PreInsertEvent, writeQuery));
            } else {
                descriptor.getEventManager().executeEvent(new DescriptorEvent(DescriptorEventManager.PreUpdateEvent, writeQuery));
            }
        }
        
        ObjectChangeSet changes = createObjectChangeSet(clone, backUp, changeSet, isNew, unitOfWork, descriptor);
        if(changes.hasChanges() && descriptor.hasMappingsPostCalculateChanges() && ! changes.isNew() && ! unitOfWork.getCommitManager().isActive() && !unitOfWork.isNestedUnitOfWork()) {

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            if (writeQuery.getObjectChangeSet() == null) {
                // PERF: Avoid events if no listeners.
                if (getDescriptor().getEventManager().hasAnyEventListeners()) {
                    // only throw the events if there is no changeset otherwise the event will be thrown twice
                    // once by the calculate changes code and here
                    getDescriptor().getEventManager().executeEvent(new DescriptorEvent(DescriptorEventManager.PreWriteEvent, writeQuery));
                }
            }
            writeQuery.executeCommit();


            // PERF: Avoid events if no listeners.
            if (getDescriptor().getEventManager().hasAnyEventListeners()) {
                getDescriptor().getEventManager().executeEvent(new DescriptorEvent(DescriptorEventManager.PostWriteEvent, writeQuery));
            }


            getSession().commitTransaction();


            // notify the commit manager of the completion to the commit

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        try {
            writeQuery.executeCommitWithChangeSet();


            // PERF: Avoid events if no listeners.
            if (descriptor.getEventManager().hasAnyEventListeners()) {
                descriptor.getEventManager().executeEvent(new DescriptorEvent(DescriptorEventManager.PostWriteEvent, writeQuery));
            }


            // Notify the commit manager of the completion to the commit.
            commitManager.markCommitCompleted(object);

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Related Classes of org.eclipse.persistence.descriptors.DescriptorEvent

org.eclipse.persistence.descriptors.changetracking.DeferredChangeDetectionPolicy

org.eclipse.persistence.internal.descriptors.ObjectBuilder

org.eclipse.persistence.internal.oxm.record.UnmarshalRecordImpl

org.eclipse.persistence.internal.queries.DatabaseQueryMechanism

org.eclipse.persistence.internal.sessions.AbstractSession

org.eclipse.persistence.mappings.AggregateCollectionMapping

org.eclipse.persistence.mappings.DatabaseMapping

org.eclipse.persistence.oxm.record.UnmarshalRecord

org.eclipse.persistence.queries.DeleteAllQuery

org.eclipse.persistence.queries.DeleteObjectQuery

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