| /******************************************************************************* |
| * Copyright (c) 2013, 2014 Ericsson |
| * |
| * All rights reserved. This program and the accompanying materials are |
| * made available under the terms of the Eclipse Public License 2.0 which |
| * accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| |
| * Contributors: |
| * Alexandre Montplaisir - Initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.tracecompass.statesystem.core.statevalue; |
| |
| import org.eclipse.jdt.annotation.Nullable; |
| import org.eclipse.tracecompass.statesystem.core.exceptions.StateValueTypeException; |
| |
| /** |
| * A state value containing a double primitive. |
| * |
| * @author Alexandre Montplaisir |
| */ |
| final class DoubleStateValue extends TmfStateValue { |
| |
| private final double fValue; |
| |
| /** |
| * Constructor |
| * |
| * @param value |
| * the value to encapsulate |
| */ |
| public DoubleStateValue(double value) { |
| fValue = value; |
| } |
| |
| @Override |
| public Type getType() { |
| return Type.DOUBLE; |
| } |
| |
| @Override |
| public boolean isNull() { |
| return false; |
| } |
| |
| @Override |
| public boolean equals(@Nullable Object object) { |
| if (!(object instanceof DoubleStateValue)) { |
| return false; |
| } |
| DoubleStateValue other = (DoubleStateValue) object; |
| return (Double.compare(this.fValue, other.fValue) == 0); |
| } |
| |
| @Override |
| public int hashCode() { |
| long bits = Double.doubleToLongBits(fValue); |
| return ((int) bits) ^ ((int) (bits >>> 32)); |
| } |
| |
| @Override |
| public @Nullable String toString() { |
| return String.format("%3f", fValue); //$NON-NLS-1$ |
| } |
| |
| // ------------------------------------------------------------------------ |
| // Unboxing methods |
| // ------------------------------------------------------------------------ |
| |
| @Override |
| public double unboxDouble() { |
| return fValue; |
| } |
| |
| @Override |
| public int compareTo(@Nullable ITmfStateValue other) { |
| if (other == null) { |
| throw new IllegalArgumentException(); |
| } |
| |
| switch (other.getType()) { |
| case INTEGER: |
| double otherDoubleValue = ((IntegerStateValue) other).unboxInt(); |
| return Double.compare(this.fValue, otherDoubleValue); |
| case DOUBLE: |
| otherDoubleValue = ((DoubleStateValue) other).unboxDouble(); |
| return Double.compare(this.fValue, otherDoubleValue); |
| case LONG: |
| otherDoubleValue = ((LongStateValue) other).unboxLong(); |
| return Double.compare(this.fValue, otherDoubleValue); |
| case NULL: |
| return Double.compare(this.fValue, other.unboxDouble()); |
| case STRING: |
| throw new StateValueTypeException("A Double state value cannot be compared to a String state value."); //$NON-NLS-1$ |
| case CUSTOM: |
| default: |
| throw new StateValueTypeException("A Double state value cannot be compared to the type " + other.getType()); //$NON-NLS-1$ |
| } |
| |
| } |
| |
| @Override |
| public @Nullable Object unboxValue() { |
| return fValue; |
| } |
| |
| } |