Start line:  
End line:  

Snippet Preview

Snippet HTML Code

Stack Overflow Questions
  * Copyright 2006-2007 the original author or authors.
  * 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
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package org.springframework.batch.classify;
A Classifier that maps from String patterns with wildcards to a set of values of a given type. An input String is matched with the most specific pattern possible to the corresponding value in an input map. A default value should be specified with a pattern key of "*".

Dave Syer
public class PatternMatchingClassifier<T> implements Classifier<String, T> {
	private PatternMatcher<T> values;

Default constructor. Use the setter or the other constructor to create a sensible classifier, otherwise all inputs will cause an exception.
		this(new HashMap<String, T>());

Create a classifier from the provided map. The keys are patterns, using '?' as a single character and '*' as multi-character wildcard.

	public PatternMatchingClassifier(Map<String, T> values) {
		this. = new PatternMatcher<T>(values);

A map from pattern to value

values the pattern map to set
	public void setPatternMap(Map<String, T> values) {
		this. = new PatternMatcher<T>(values);

Classify the input by matching it against the patterns provided in setPatternMap(java.util.Map). The most specific pattern that matches will be used to locate a value.

the value matching the most specific pattern possible
java.lang.IllegalStateException if no matching value is found.
	public T classify(String classifiable) {
value = .match(classifiable);
		return value;
New to GrepCode? Check out our FAQ X