net.m2technologies.open_arm.utilities.collections
Class ExceptionalPredicate
java.lang.Object
net.m2technologies.open_arm.utilities.collections.ExceptionalPredicate
- public abstract class ExceptionalPredicate
- 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
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Description: Abstract class to use the Predicate interface to handle checked exceptions. Normally, a selection
shouldn't cause any checked exceptions. Every checked exception is wrapped into a RuntimePredicateException. The user
of this class has to rewrite the #basicEvaluate method. The usage of this class may be combined with a special
#select method to clear the checked exception or unwrap it to throw it again.
- Version:
- 0.009
- Author:
- Peter Ko�ek
Method Summary |
protected abstract boolean |
basicEvaluate(java.lang.Object o)
method to wrap any selecting code who can throw a checked exception. |
boolean |
evaluate(java.lang.Object o)
redefine the #evaluate 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 |
ExceptionalPredicate
public ExceptionalPredicate()
evaluate
public final boolean evaluate(java.lang.Object o)
throws RuntimePredicateException
- redefine the #evaluate 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
#basicEvaluate now.
- Throws:
RuntimePredicateException
- See Also:
org.apache.commons.collections.Predicate#evaluate
basicEvaluate
protected abstract boolean basicEvaluate(java.lang.Object o)
throws java.lang.Exception
- method to wrap any selecting code who can throw a checked exception. This method is called by the #evalutate
method of this class, which will wrap the exception into a RuntimePredicateException.
- Throws:
java.lang.Exception