Package com.microstrategy.web.app.tasks

Class RetrieveChildrenTask

java.lang.Object

com.microstrategy.web.tasks.AbstractBaseTask

com.microstrategy.web.app.tasks.AbstractAppTask

com.microstrategy.web.app.tasks.WebComponentTask

com.microstrategy.web.app.tasks.BeanTask

com.microstrategy.web.app.tasks.RetrieveChildrenTask

All Implemented Interfaces:

Task

public class RetrieveChildrenTask
extends BeanTask

Field Summary

Fields inherited from class com.microstrategy.web.app.tasks.WebComponentTask

FP_NAME_CONTENT_TYPE, initializationErrorMessage

Fields inherited from class com.microstrategy.web.tasks.AbstractBaseTask

compressOutput, CONTENT_TYPE_BINARY, CONTENT_TYPE_HTML, CONTENT_TYPE_JSON, CONTENT_TYPE_JSON_ALL, CONTENT_TYPE_JSON_D, CONTENT_TYPE_JSON_P, CONTENT_TYPE_XML, CONTENT_TYPE_XML_ANF, DEFAULT_MAX_WAIT, DEFAULT_POLLING_FREQ, execFlagsParam, INDEFINITE_MAX_WAIT, maxWaitParam, metadata, mPrivileges, msgIDParam, objectIDParam, OTHER_CONTENT_KEY_LAYOUTS, PARAM_NAME_EXEC_FLAGS, PARAM_NAME_MAX_WAIT, PARAM_NAME_MESSAGE_ID, PARAM_NAME_OBJECT_ID, PARAM_NAME_POLLING_FREQ, PARAM_NAME_RESULT_FLAGS, PARAM_NAME_SESSION_ID, PARAM_NAME_SESSION_STATE, PARAM_NAME_STATE_ID, pollingFreqParam, PREFERENCE_DEFAULT_MAX_WAIT_IN_TASK, resultFlagsParam, sessionIDParam, sessionStateParam, stateIDParam

Constructor Summary

Constructors

Constructor	Description
RetrieveChildrenTask()

Method Summary

Modifier and Type	Method	Description
protected void	handleEvent(BeanTaskRequestContext btrContext)	This method instructs the WebBean to handle the event.
protected void	prepareBean(BeanTaskRequestContext bsrContext)	This method prepares the WebBean for execution.
protected void	registerParameterMetadata(TaskParameterMetadata parameterMetadata)	Registers a specific Task parameter metadata.
protected void	serializeResult(BeanTaskRequestContext btrContext, TaskOutput taskOutput)	This method attempts to serialize the results to the supplied TaskOutput object.

Methods inherited from class com.microstrategy.web.app.tasks.BeanTask

createWebBean

Methods inherited from class com.microstrategy.web.app.tasks.WebComponentTask

addTransform, collectData, createUntypedWebComponent, destroy, generatesContent, getBeanInfo, getStyleName, init, isSuccessfullyInitialized, newRequestContext, overrideActualParameters, prepareArgumentRequestKeys, prepareArgumentRequestKeys, prepareEventOrderRequestKeys, prepareEventOrderRequestKeys, prepareEventRequestKeys, prepareEventRequestKeys, prepareParameterRequestKeys, prepareRequestKeys, processRequest, registerTaskMetadata, requiresIServerSession, restoreBeanState, setBeanContext, setBeanInfo, setBeanName, setBeanProperties, setBeanSession, setSuccessfullyInitialized, setTaskID, transformBean

Methods inherited from class com.microstrategy.web.app.tasks.AbstractAppTask

getDescriptor

Methods inherited from class com.microstrategy.web.tasks.AbstractBaseTask

addExecFlagsParam, addJuilLayouts, addMaxWaitParam, addMaxWaitParam, addMessageIDParam, addObjectIDParam, addParameterMetadata, addParameterMetadata, addParameterMetadata, addPollingFrequencyParam, addPollingFrequencyParam, addResultFlagsParam, addSessionIDParam, addSessionStateParam, addStateIDParam, checkForRequiredParameters, getCompressOutput, getID, getMetadata, getPrivileges, getSysDefaultPreferenceValue, processRequest, retrieveUploadedFile, setCompressOutput, setDescription, setID, setMetadata, setPrivileges, validateContentType

Methods inherited from class java.lang.Object

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

Constructor Detail

RetrieveChildrenTask

public RetrieveChildrenTask()

Method Detail

registerParameterMetadata

protected void registerParameterMetadata(TaskParameterMetadata parameterMetadata)

Description copied from class: WebComponentTask

Registers a specific Task parameter metadata. This method is called by WebComponentTask.registerTaskMetadata(TaskMetadata). It is helpful to override in a Task so that a specific TaskParameterMetadata may be saved for later use.

Overrides:

registerParameterMetadata in class WebComponentTask

Parameters:

parameterMetadata - The TaskParameterMetadata object being saved.

prepareBean

protected void prepareBean(BeanTaskRequestContext bsrContext)
                    throws TaskException

Description copied from class: WebComponentTask

This method prepares the WebBean for execution. It is called by the WebComponentTask.processRequest(TaskRequestContext, TaskOutput) method. It performs the following actions:

1. Creates a new WebBean instance and adds it to the context. (calls WebComponentTask.createWebBean(BeanTaskRequestContext))
2. Sets any bean properties. (calls WebComponentTask.setBeanProperties(BeanTaskRequestContext))
3. Restores any bean state. (calls WebComponentTask.restoreBeanState(BeanTaskRequestContext))

Overrides:

prepareBean in class WebComponentTask

Parameters:

bsrContext - The BeanTaskRequestContext to use.

Throws:

TaskException - If anything fails along the way.

handleEvent

protected void handleEvent(BeanTaskRequestContext btrContext)
                    throws TaskException

Description copied from class: WebComponentTask

This method instructs the WebBean to handle the event. It is called from WebComponentTask.processRequest(TaskRequestContext, TaskOutput).

Overrides:

handleEvent in class WebComponentTask

Parameters:

btrContext - The BeanTaskRequestContext that contains the WebBean instance.

Throws:

TaskException - If something fails in the process of handling the event.

TaskRequestMalformedException - If there was an exception raised while handling the event.

serializeResult

protected void serializeResult(BeanTaskRequestContext btrContext,
                               TaskOutput taskOutput)
                        throws TaskException

Description copied from class: WebComponentTask

This method attempts to serialize the results to the supplied TaskOutput object. This method is called by WebComponentTask.processRequest(TaskRequestContext, TaskOutput) and in turn does the following:

1. Add the Transform. If there is no transform specified, an empty MarkupOutput is returned. (calls WebComponentTask.addTransform(BeanTaskRequestContext))
2. Override any actual parameters specified in the Bean Task XML. (calls WebComponentTask.overrideActualParameters(BeanTaskRequestContext, TransformInstance))
3. Transforms the WebBean using the Transform. (calls WebComponentTask.transformBean(BeanTaskRequestContext, TaskOutput))

Overrides:

serializeResult in class WebComponentTask

Parameters:

btrContext - The BeanTaskRequestContext object.

taskOutput - The TaskOutput object to populate.

Throws:

TaskException - If something fails along the way.