/
NumberToFloatTransform.java
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/
NumberToFloatTransform.java
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/*
* Copyright Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags and
* the COPYRIGHT.txt file distributed with this work.
*
* 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.teiid.core.types.basic;
import org.teiid.core.types.DataTypeManager;
import org.teiid.core.types.TransformationException;
public class NumberToFloatTransform extends NumberToNumberTransform {
private boolean isNarrowing;
private boolean isLossy;
public NumberToFloatTransform(Class<?> sourceType, boolean isNarrowing, boolean isLossy) {
super(-Float.MAX_VALUE, Float.MAX_VALUE, sourceType);
this.isNarrowing = isNarrowing;
this.isLossy = isLossy;
}
/**
* This method transforms a value of the source type into a value
* of the target type.
* @param value Incoming value of source type
* @return Outgoing value of target type
* @throws TransformationException if value is an incorrect input type or
* the transformation fails
*/
public Object transformDirect(Object value) throws TransformationException {
if (isNarrowing) {
checkValueRange(value);
}
return Float.valueOf(((Number)value).floatValue());
}
/**
* Type of the outgoing value.
* @return Target type
*/
public Class<?> getTargetType() {
return DataTypeManager.DefaultDataClasses.FLOAT;
}
@Override
public boolean isExplicit() {
return isNarrowing || isLossy;
}
}