org.apache.commons.betwixt.expression
Class TypedUpdater
java.lang.Object
|
+--org.apache.commons.betwixt.expression.TypedUpdater
- All Implemented Interfaces:
- Updater
- Direct Known Subclasses:
- DynaBeanUpdater, MethodUpdater
- public abstract class TypedUpdater
- extends java.lang.Object
- implements Updater
Abstracts common features for strongly typed Updater
's.
Strongly type Updater
's perform conversions based on this
the expected type before the bean update is invoked.
- Since:
- 0.7
- Author:
- Jakarta Commons Team, Apache Software Foundation
Method Summary |
protected abstract void |
executeUpdate(Context context,
java.lang.Object bean,
java.lang.Object value)
Updates the bean with the given value. |
java.lang.Class |
getValueType()
Gets the type expected. |
protected void |
handleException(Context context,
java.lang.Exception e)
Strategy method to allow derivations to handle exceptions differently. |
void |
setValueType(java.lang.Class valueType)
Sets the type expected. |
void |
update(Context context,
java.lang.Object newValue)
Updates the current bean context with the given String value |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
TypedUpdater
public TypedUpdater()
update
public void update(Context context,
java.lang.Object newValue)
- Updates the current bean context with the given String value
- Specified by:
update
in interface Updater
- Parameters:
context
- the Context to be updatednewValue
- the update to this new value
getValueType
public java.lang.Class getValueType()
- Gets the type expected.
The value passed into
update(org.apache.commons.betwixt.expression.Context, java.lang.Object)
will be converted on the basis of this type
before being passed to executeUpdate(org.apache.commons.betwixt.expression.Context, java.lang.Object, java.lang.Object)
.
- Returns:
Class
giving expected type, not null
setValueType
public void setValueType(java.lang.Class valueType)
- Sets the type expected.
The value passed into
update(org.apache.commons.betwixt.expression.Context, java.lang.Object)
will be converted on the basis of this type
before being passed to executeUpdate(org.apache.commons.betwixt.expression.Context, java.lang.Object, java.lang.Object)
.
- Parameters:
valueType
- Class
giving expected type, not null
executeUpdate
protected abstract void executeUpdate(Context context,
java.lang.Object bean,
java.lang.Object value)
throws java.lang.Exception
- Updates the bean with the given value.
- Parameters:
bean
- value
- value after type conversion
handleException
protected void handleException(Context context,
java.lang.Exception e)
- Strategy method to allow derivations to handle exceptions differently.
- Parameters:
context
- the Context being updated when this exception occurede
- the Exception that occured during the update
Copyright © 2002-2005 The Apache Software Foundation. All Rights Reserved.