oracle.jbo.server.rules
Class JboMethodValidator

java.lang.Object
  |
  +--oracle.jbo.server.rules.JboMethodValidator

All Implemented Interfaces:

java.util.EventListener, JbiValidator, VetoableChangeListener

public class JboMethodValidator

extends java.lang.Object

implements JbiValidator

A validator that tests values by passing them to a validation method.

The validation method must be public, take a single Object parameter and return Boolean.

Since:

Jdeveloper 3.0

Constructor Summary

JboMethodValidator()
Creates a validator without assigning its validation method.

JboMethodValidator(java.lang.String methodName, java.lang.Class entityClz, java.lang.Class clz)
Creates a validator given the name of the validation method.

Method Summary

java.lang.String	getDescription() Gets the textul description of this validator.
java.lang.reflect.Method	getMethod() Gets the method invoked by this validator.
java.lang.String	getMethodName() Gets the name of the method invoked by this validator.
void	setDescription(java.lang.String description) Sets the textul description of this validator.
void	setMethodName(java.lang.String mthName) Sets the name of the method invoked by this validator.
java.lang.String	toString() Internal: For debugging purposes only.
boolean	validateValue(java.lang.Object value) Validate an object by passing it to the validation method.
void	vetoableChange(PropertyChangeEvent evObj) Invokes validateValue() on a value contained in a constrained property.

Methods inherited from class java.lang.Object

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

Constructor Detail

JboMethodValidator

public JboMethodValidator()

Creates a validator without assigning its validation method.

JboMethodValidator

public JboMethodValidator(java.lang.String methodName,
                          java.lang.Class entityClz,
                          java.lang.Class clz)

Creates a validator given the name of the validation method.

Method Detail

vetoableChange

public void vetoableChange(PropertyChangeEvent evObj)

Invokes validateValue() on a value contained in a constrained property.

Specified by:

vetoableChange in interface VetoableChangeListener

Throws:

JboException - if validation fails.

validateValue

public boolean validateValue(java.lang.Object value)
                      throws JboException

Validate an object by passing it to the validation method.

Specified by:

validateValue in interface JbiValidator

Parameters:

value - the object to be validated.

Returns:

false if the validation method cannot be found or if the validation method throws an exception that is not a instance of JboException. Otherwise, pass on the boolean value returned by the validation method.

Throws:

JboException - if the validation method throws an instance of JboException.

setMethodName

public void setMethodName(java.lang.String mthName)

Sets the name of the method invoked by this validator.

Parameters:

mthName - the name of a Java method. The method must be public, take a single Object parameter and return Boolean.

getMethodName

public java.lang.String getMethodName()

Gets the name of the method invoked by this validator.

Returns:

the name of a Java method.

getMethod

public java.lang.reflect.Method getMethod()

Gets the method invoked by this validator.

Returns:

a method object, a description of a Java method.

toString

public java.lang.String toString()

Internal: For debugging purposes only.

Overrides:

toString in class java.lang.Object

getDescription

public java.lang.String getDescription()

Gets the textul description of this validator.

Specified by:

getDescription in interface JbiValidator

Returns:

a documentation string.

setDescription

public void setDescription(java.lang.String description)

Sets the textul description of this validator.

Specified by:

setDescription in interface JbiValidator

Parameters:

description - a documentation string.