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Diffstat (limited to 'src/main/java/org/apache/commons/math3/util/NumberTransformer.java')
-rw-r--r-- | src/main/java/org/apache/commons/math3/util/NumberTransformer.java | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/src/main/java/org/apache/commons/math3/util/NumberTransformer.java b/src/main/java/org/apache/commons/math3/util/NumberTransformer.java new file mode 100644 index 0000000..d25ce14 --- /dev/null +++ b/src/main/java/org/apache/commons/math3/util/NumberTransformer.java @@ -0,0 +1,36 @@ +/* + * 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.math3.util; + +import org.apache.commons.math3.exception.MathIllegalArgumentException; + +/** + * Subclasses implementing this interface can transform Objects to doubles. + * + * <p>No longer extends Serializable since 2.0 + */ +public interface NumberTransformer { + + /** + * Implementing this interface provides a facility to transform from Object to Double. + * + * @param o the Object to be transformed. + * @return the double value of the Object. + * @throws MathIllegalArgumentException if the Object can not be transformed into a Double. + */ + double transform(Object o) throws MathIllegalArgumentException; +} |