/*
* Encog(tm) Core v3.4 - Java Version
* http://www.heatonresearch.com/encog/
* https://github.com/encog/encog-java-core
* Copyright 2008-2016 Heaton Research, 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.
*
* For more information on Heaton Research copyrights, licenses
* and trademarks visit:
* http://www.heatonresearch.com/copyright
*/
package org.encog.util.normalize.output;
import org.encog.util.normalize.input.InputField;
/**
* A direct output field, will simply pass the input value to the output.
*/
public class OutputFieldDirect extends BasicOutputField {
/**
* The source field.
*/
private InputField sourceField;
/**
* Construct a direct output field.
* @param sourceField The source field to pass directly on.
*/
public OutputFieldDirect(final InputField sourceField) {
this.sourceField = sourceField;
}
/**
* Default constructor, used for reflection.
*/
public OutputFieldDirect() {
}
/**
* Calculate the value for this field. This will simply be the
* value from the input field.
* @param subfield Not used, as this output field type does not
* support subfields.
* @return The calculated value for this field.
*/
public double calculate(final int subfield) {
return this.sourceField.getCurrentValue();
}
/**
* @return Always returns 1, as subfields are not used.
*/
public int getSubfieldCount() {
return 1;
}
/**
* Not needed for this sort of output field.
*/
public void rowInit() {
}
/**
* {@inheritDoc}
*/
public String toString()
{
StringBuilder result = new StringBuilder();
result.append("Direct: ");
result.append("Source->");
result.append(this.sourceField.toString());
return result.toString();
}
}