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A Speedment bundle that shades all dependencies into one jar. This is
useful when deploying an application on a server.
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/*
*
* Copyright (c) 2006-2019, Speedment, Inc. 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.
*/
package com.speedment.runtime.compute.internal.expression;
import com.speedment.runtime.compute.ToByte;
import com.speedment.runtime.compute.ToDouble;
import com.speedment.runtime.compute.ToFloat;
import com.speedment.runtime.compute.ToInt;
import com.speedment.runtime.compute.ToLong;
import com.speedment.runtime.compute.ToShort;
import com.speedment.runtime.compute.expression.Expression;
import com.speedment.runtime.compute.expression.UnaryExpression;
import java.util.Objects;
import static java.util.Objects.requireNonNull;
/**
* Utility class for creating expressions that give the positive square root of
* the result from another expression.
*
* @author Emil Forslund
* @since 3.1.0
*/
public final class SqrtUtil {
/**
* Returns an expression that takes the result from the specified expression
* and returns the positive square root of it.
*
* @param other the expression to take the square root of
* @param the input entity type
* @return expression for the square root
*/
public static ToDouble sqrtByte(ToByte other) {
class ByteSqrt extends AbstractSqrt> {
private ByteSqrt(ToByte tToByte) {
super(tToByte);
}
@Override
public double applyAsDouble(T object) {
return Math.sqrt(inner.applyAsByte(object));
}
}
return new ByteSqrt(other);
}
/**
* Returns an expression that takes the result from the specified expression
* and returns the positive square root of it.
*
* @param other the expression to take the square root of
* @param the input entity type
* @return expression for the square root
*/
public static ToDouble sqrtShort(ToShort other) {
class ShortSqrt extends AbstractSqrt> {
private ShortSqrt(ToShort tToShort) {
super(tToShort);
}
@Override
public double applyAsDouble(T object) {
return Math.sqrt(inner.applyAsShort(object));
}
}
return new ShortSqrt(other);
}
/**
* Returns an expression that takes the result from the specified expression
* and returns the positive square root of it.
*
* @param other the expression to take the square root of
* @param the input entity type
* @return expression for the square root
*/
public static ToDouble sqrtInt(ToInt other) {
class IntSqrt extends AbstractSqrt> {
private IntSqrt(ToInt tToInt) {
super(tToInt);
}
@Override
public double applyAsDouble(T object) {
return Math.sqrt(inner.applyAsInt(object));
}
}
return new IntSqrt(other);
}
/**
* Returns an expression that takes the result from the specified expression
* and returns the positive square root of it.
*
* @param other the expression to take the square root of
* @param the input entity type
* @return expression for the square root
*/
public static ToDouble sqrtLong(ToLong other) {
class LongSqrt extends AbstractSqrt> {
private LongSqrt(ToLong tToLong) {
super(tToLong);
}
@Override
public double applyAsDouble(T object) {
return Math.sqrt(inner.applyAsLong(object));
}
}
return new LongSqrt(other);
}
/**
* Returns an expression that takes the result from the specified expression
* and returns the positive square root of it.
*
* @param other the expression to take the square root of
* @param the input entity type
* @return expression for the square root
*/
public static ToDouble sqrtFloat(ToFloat other) {
class FloatSqrt extends AbstractSqrt> {
private FloatSqrt(ToFloat tToFloat) {
super(tToFloat);
}
@Override
public double applyAsDouble(T object) {
return Math.sqrt(inner.applyAsFloat(object));
}
}
return new FloatSqrt(other);
}
/**
* Returns an expression that takes the result from the specified expression
* and returns the positive square root of it.
*
* @param other the expression to take the square root of
* @param the input entity type
* @return expression for the square root
*/
public static ToDouble sqrtDouble(ToDouble other) {
class DoubleSqrt extends AbstractSqrt> {
private DoubleSqrt(ToDouble tToDouble) {
super(tToDouble);
}
@Override
public double applyAsDouble(T object) {
return Math.sqrt(inner.applyAsDouble(object));
}
}
return new DoubleSqrt(other);
}
/**
* Abstract base implementation of a {@link UnaryExpression} for a
* square root-operation.
*
* @param the input entity type
* @param the inner expression type to take the square root of
*/
private abstract static class AbstractSqrt>
implements UnaryExpression, ToDouble {
final INNER inner;
AbstractSqrt(INNER inner) {
this.inner = requireNonNull(inner);
}
@Override
public final INNER inner() {
return inner;
}
@Override
public final Operator operator() {
return Operator.SQRT;
}
@Override
public final boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof UnaryExpression)) return false;
final UnaryExpression that = (UnaryExpression) o;
return Objects.equals(inner(), that.inner())
&& Objects.equals(operator(), that.operator());
}
@Override
public final int hashCode() {
return Objects.hash(inner(), operator());
}
}
/**
* Utility classes should not be instantiated.
*/
private SqrtUtil() {}
}