oracle.adf.model.binding
Class DCBindingContainerValidationAdapter

java.lang.Object
  oracle.adf.model.binding.DCBindingContainerValidationAdapter

All Implemented Interfaces:

DCBindingContainerValidationListener, java.util.EventListener

Direct Known Subclasses:

JUPanelValidationAdapter

public class DCBindingContainerValidationAdapter

extends java.lang.Object

implements DCBindingContainerValidationListener

Default implementation for DCBindingContainerValidationListener interface. This implementation simply prints a diagnostic message for each event it receives. JClient design time creates a subclass of this adapter with overridden methods as per an application's choice when the Event Inspector is used to generate DCBindingContainerValidationEvent listener code.

Constructor Summary

DCBindingContainerValidationAdapter()

Method Summary

void	beforeCurrencyChange(DCBindingContainerValidationEvent ev) Invoked before a JClient binding object calls a navigation event to display the next row data in the JClient controls.
void	beforeSaveTransaction(DCBindingContainerValidationEvent ev) Invoked before a JClient binding object calls commit() on the transaction to save any pending changes into the database.
void	beforeSetAttribute(DCBindingContainerValidationEvent ev) Invoked before a JClient Binding object calls Row.setAttribute() to update a value from a binding object into the corresponding Row object.

Methods inherited from class java.lang.Object

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

Constructor Detail

DCBindingContainerValidationAdapter

public DCBindingContainerValidationAdapter()

Method Detail

beforeSetAttribute

public void beforeSetAttribute(DCBindingContainerValidationEvent ev)

Description copied from interface: DCBindingContainerValidationListener

Invoked before a JClient Binding object calls Row.setAttribute() to update a value from a binding object into the corresponding Row object.

Applications should perform lightweight, attribute-data validation (for example, matching a value with a small set of values or uppercasing all entries etc.) at this level before the value is passed on to BC4J. Note that such a validation should be duplicated on the BC4J side too as other clients or APIs may modify the same attribute. This duplication is usually necessary when a client needs immediate feedback of an error rather than going over to the middle-tier (in a multi-tier platform) and get any errors.

Specified by:

beforeSetAttribute in interface DCBindingContainerValidationListener

beforeCurrencyChange

public void beforeCurrencyChange(DCBindingContainerValidationEvent ev)

Description copied from interface: DCBindingContainerValidationListener

Invoked before a JClient binding object calls a navigation event to display the next row data in the JClient controls.

Applications should perform lightweight, row-data validation (for example, inter-attribute validation etc.) at this level before the value is passed on to BC4J. Note that such a validation should be duplicated on the BC4J side to allow other clients or APIs to modify the same attribute. This duplication is usually necessary when a client needs immediate feedback of an error rather than going over to the middle-tier (in a multi-tier platform) and get any errors.

Specified by:

beforeCurrencyChange in interface DCBindingContainerValidationListener

beforeSaveTransaction

public void beforeSaveTransaction(DCBindingContainerValidationEvent ev)

Description copied from interface: DCBindingContainerValidationListener

Invoked before a JClient binding object calls commit() on the transaction to save any pending changes into the database.

Applications should perform lightweight, panel-level validation (for example, validating that all desired values are filled in etc.) at this level before the values are passed on to BC4J. Note that such a validation should be duplicated on the BC4J side to allow other clients or APIs to modify the same attribute. This duplication is usually necessary when a client needs immediate feedback of an error rather than going over to the middle-tier (in a multi-tier platform) and get any errors.

Specified by:

beforeSaveTransaction in interface DCBindingContainerValidationListener