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Now that we have BeanUtils "free" versions of these they do not need to be maintained in experimental. 

git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/math/trunk@141264 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Mark R. Diggory 2004-06-01 23:45:11 +00:00
parent 7538855855
commit a40de0d92f
2 changed files with 0 additions and 173 deletions
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79
src/experimental/org/apache/commons/math/util/BeanTransformer.java
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/*
* Copyright 2003-2004 The Apache Software Foundation.
*
* 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.
*/
package org.apache.commons.math.util;
import java.lang.reflect.InvocationTargetException;
import org.apache.commons.math.MathException;
import org.apache.commons.beanutils.PropertyUtils;
/**
* Uses PropertyUtils to map a Bean getter to a double value.
* @version $Revision: 1.1 $ $Date: 2004/06/01 22:10:17 $
*/
public class BeanTransformer implements NumberTransformer {
/**
* The propertyName for this Transformer
*/
private String propertyName;
/**
* Create a BeanTransformer
*/
public BeanTransformer() {
this(null);
}
/**
* Create a BeanTransformer with a specific PropertyName.
* @param property The property.
*/
public BeanTransformer(final String property) {
super();
setPropertyName(property);
}
/**
* Get the property String
* @return the Property Name String
*/
public String getPropertyName() {
return propertyName;
}
/**
* Set the propertyString
* @param string The string to set the property to.
*/
public void setPropertyName(final String string) {
propertyName = string;
}
/**
* @see org.apache.commons.math.util.NumberTransformer#transform(java.lang.Object)
*/
public double transform(final Object o) throws MathException {
try {
return ((Number) PropertyUtils.getProperty(o, getPropertyName())).doubleValue();
} catch (IllegalAccessException e) {
throw new MathException("IllegalAccessException in Transformation: " + e.getMessage(), e);
} catch (InvocationTargetException e) {
throw new MathException("InvocationTargetException in Transformation: " + e.getMessage(), e);
} catch (NoSuchMethodException e) {
throw new MathException("oSuchMethodException in Transformation: " + e.getMessage(), e);
}
}
}

94
src/experimental/org/apache/commons/math/util/BeanTransformerTest.java
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/*
* Copyright 2003-2004 The Apache Software Foundation.
*
* 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.
*/
package org.apache.commons.math.util;
import org.apache.commons.math.MathException;
import org.apache.commons.math.TestUtils;
import junit.framework.TestCase;
/**
* @version $Revision: 1.1 $ $Date: 2004/06/01 22:10:17 $
*/
public class BeanTransformerTest extends TestCase {
/**
*
*/
public void testConstructor(){
BeanTransformer b = new BeanTransformer();
assertNull(b.getPropertyName());
}
/**
*
*/
public void testConstructorString(){
String name = "property";
BeanTransformer b = new BeanTransformer(name);
assertEquals(name, b.getPropertyName());
}
/**
*
*/
public void testSetPropertyName(){
String name = "property";
BeanTransformer b = new BeanTransformer();
b.setPropertyName(name);
assertEquals(name, b.getPropertyName());
}
/**
*
*/
public void testTransformNoSuchMethod(){
BeanTransformer b = new BeanTransformer("z");
TestBean target = new TestBean();
try {
b.transform(target);
fail("Expecting MathException");
} catch (MathException e) {
// expected
}
}
/**
*
*/
public void testTransform() throws Exception {
BeanTransformer b = new BeanTransformer("x");
TestBean target = new TestBean();
double value = Double.NaN;
value = b.transform(target);
TestUtils.assertEquals(1.0, value, 1.0e-2);
}
/**
*
*/
public void testTransformInvalidType() throws Exception {
BeanTransformer b = new BeanTransformer("y");
TestBean target = new TestBean();
try {
b.transform(target);
fail("Expecting ClassCastException");
} catch(ClassCastException ex){
// success
}
}
}