net.m2technologies.open_arm.utilities.collections
Class ExceptionalTransformer
java.lang.Object
net.m2technologies.open_arm.utilities.collections.ExceptionalTransformer
- public abstract class ExceptionalTransformer
- extends java.lang.Object
Copyright 2005 Mark Masterson
Licensed under the Apache License, Version 2.0 (the "License");
you may
not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS
OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
Description: Abstract class to use the Transformer interface to handle checked exceptions. Normally, a
transformation shouldn't cause any checked exceptions. Every checked exception is wrapped into a
RuntimeTransformException. The user of this class has to rewrite the #basicTransform method. The usage of this class
should be combined with a special #collect method to clear the checked exception or unwrap it to throw it again.
- Version:
- 0.009
- Author:
- Peter Ko�ek
Method Summary |
protected abstract java.lang.Object |
basicTransform(java.lang.Object o)
method to wrap any transforming code who can throw a checked exception. |
java.lang.Object |
transform(java.lang.Object o)
redefine the #transform method to establish a mechanism to tunnel checked exceptions through the
Commons-Collection API which doesn't know checked exceptions. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
ExceptionalTransformer
public ExceptionalTransformer()
transform
public final java.lang.Object transform(java.lang.Object o)
throws RuntimeTransformerException
- redefine the #transform method to establish a mechanism to tunnel checked exceptions through the
Commons-Collection API which doesn't know checked exceptions. The method is declared final because you should use
#basicTransform now.
- Throws:
RuntimeTransformerException
- See Also:
org.apache.commons.collections.Transformer#transform
basicTransform
protected abstract java.lang.Object basicTransform(java.lang.Object o)
throws java.lang.Exception
- method to wrap any transforming code who can throw a checked exception. This method is called by the #transform
method of this class, which will wrap the exception into a RuntimeTransformException
- Throws:
java.lang.Exception