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Diffstat (limited to 'src/main/java/org/apache/commons/math/genetics/PermutationChromosome.java')
-rw-r--r-- | src/main/java/org/apache/commons/math/genetics/PermutationChromosome.java | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/src/main/java/org/apache/commons/math/genetics/PermutationChromosome.java b/src/main/java/org/apache/commons/math/genetics/PermutationChromosome.java new file mode 100644 index 0000000..676b5dc --- /dev/null +++ b/src/main/java/org/apache/commons/math/genetics/PermutationChromosome.java @@ -0,0 +1,44 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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. + */ +package org.apache.commons.math.genetics; + +import java.util.List; + +/** + * Interface indicating that the chromosome represents a permutation of objects. + * + * @param <T> + * type of the permuted objects + * @since 2.0 + * @version $Revision: 811786 $ $Date: 2009-09-06 11:36:08 +0200 (dim. 06 sept. 2009) $ + */ +public interface PermutationChromosome<T> { + + /** + * Permutes the <code>sequence</code> of objects of type T according to the + * permutation this chromosome represents. For example, if this chromosome + * represents a permutation (3,0,1,2), and the unpermuted sequence is + * (a,b,c,d), this yields (d,a,b,c). + * + * @param sequence + * the unpermuted (original) sequence of objects + * @return permutation of <code>sequence</code> represented by this + * permutation + */ + List<T> decode(List<T> sequence); + +} |