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Tensorics is a java framework which uses a tensor as a central object. A tensor represents a set of values placed in an N-dimensional space. Wherever you are tempted to use maps of maps, a tensor might be a good choice ;-) Tensorics provides methods to create, transform and performing calculations with those tensors.
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*
* This file is part of tensorics.
*
* Copyright (c) 2008-2011, CERN. All rights reserved.
*
* 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.
*
******************************************************************************/
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package org.tensorics.core.expressions;
import static com.google.common.base.Preconditions.checkNotNull;
import java.util.List;
import org.tensorics.core.math.operations.BinaryOperation;
import org.tensorics.core.tree.domain.AbstractDeferredExpression;
import org.tensorics.core.tree.domain.Expression;
import org.tensorics.core.tree.domain.Node;
import com.google.common.collect.ImmutableList;
/**
* An unresolved expression which can be resolved by applying a binary operation on the results of the two operands
* (left, right). An instance contains the binary operation itself as well as expressions for both operands.
*
* @author kfuchsbe
* @param the type of the results of the operands (and the result of the expression)
*/
public class BinaryOperationExpression extends AbstractDeferredExpression {
private final BinaryOperation operation;
private final Expression left;
private final Expression right;
public BinaryOperationExpression(BinaryOperation operation, Expression left, Expression right) {
super();
this.operation = checkNotNull(operation, "Operation must not be null!");
this.left = checkNotNull(left, "Left operand must not be null!");
this.right = checkNotNull(right, "Right operand must not be null!");
}
public BinaryOperation getOperation() {
return operation;
}
public Expression getLeft() {
return left;
}
public Expression getRight() {
return right;
}
@Override
public List getChildren() {
return ImmutableList. of(left, right);
}
}