/**
* Copyright 2010 JBoss Inc
*
* 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.drools.base.extractors;
import java.lang.reflect.Method;
import org.drools.RuntimeDroolsException;
import org.drools.base.BaseClassFieldWriter;
import org.drools.base.ValueType;
/**
* A Base class for primitive byte class field
* writer. This class centralizes type conversions.
*
* @author etirelli
*/
public abstract class BaseByteClassFieldWriter extends BaseClassFieldWriter {
private static final long serialVersionUID = 510l;
public BaseByteClassFieldWriter(final Class< ? > clazz,
final String fieldName) {
super( clazz,
fieldName );
}
/**
* This constructor is not supposed to be used from outside the class hierarchy
*
* @param index
* @param fieldType
* @param valueType
*/
protected BaseByteClassFieldWriter(final int index,
final Class< ? > fieldType,
final ValueType valueType) {
super( index,
fieldType,
valueType );
}
public void setValue(final Object bean,
final Object value) {
setByteValue( bean,
value == null ? 0 : ((Number) value).byteValue() );
}
public void setBooleanValue(final Object bean,
final boolean value) {
throw new RuntimeDroolsException( "Conversion to byte not supported from boolean" );
}
public abstract void setByteValue(final Object bean,
final byte value);
public void setCharValue(final Object bean,
final char value) {
throw new RuntimeDroolsException( "Conversion to byte not supported from char" );
}
public void setDoubleValue(final Object bean,
final double value) {
setByteValue( bean,
(byte) value );
}
public void setFloatValue(final Object bean,
final float value) {
setByteValue( bean,
(byte) value );
}
public void setIntValue(final Object bean,
final int value) {
setByteValue( bean,
(byte) value );
}
public void setLongValue(final Object bean,
final long value) {
setByteValue( bean,
(byte) value );
}
public void setShortValue(final Object bean,
final short value) {
setByteValue( bean,
(byte) value );
}
public Method getNativeWriteMethod() {
try {
return this.getClass().getDeclaredMethod( "setByteValue",
new Class[]{Object.class, byte.class} );
} catch ( final Exception e ) {
throw new RuntimeDroolsException( "This is a bug. Please report to development team: " + e.getMessage(),
e );
}
}
}