| /*=============================================================================# |
| # Copyright (c) 2009, 2020 Stephan Wahlbrink and others. |
| # |
| # This program and the accompanying materials are made available under the |
| # terms of the Eclipse Public License 2.0 which is available at |
| # https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0 |
| # which is available at https://www.apache.org/licenses/LICENSE-2.0. |
| # |
| # SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 |
| # |
| # Contributors: |
| # Stephan Wahlbrink <sw@wahlbrink.eu> - initial API and implementation |
| #=============================================================================*/ |
| |
| package org.eclipse.statet.rj.data; |
| |
| import org.eclipse.statet.jcommons.lang.NonNullByDefault; |
| import org.eclipse.statet.jcommons.lang.Nullable; |
| |
| import org.eclipse.statet.rj.data.RComplexStore.Complex; |
| |
| |
| /** |
| * Interface for R data stores of type {@link RStore#COMPLEX}. |
| * <p> |
| * An R data store implements this interface if the R function |
| * <code>typeof(object)</code> returns 'complex'.</p> |
| */ |
| @NonNullByDefault |
| public interface RComplexStore extends RStore<Complex> { |
| |
| |
| final class Complex { |
| |
| |
| private final double realValue; |
| private final double imaginaryValue; |
| |
| |
| public Complex(final double real, final double imaginary) { |
| this.realValue= real; |
| this.imaginaryValue= imaginary; |
| } |
| |
| |
| public double getRe() { |
| return this.realValue; |
| } |
| |
| public double getIm() { |
| return this.imaginaryValue; |
| } |
| |
| |
| @Override |
| public int hashCode() { |
| final long realBits= Double.doubleToLongBits(this.realValue); |
| final long imaginaryBits= Double.doubleToLongBits(this.imaginaryValue) + 1; |
| return (int)((realBits ^ (realBits >>> 32)) | (imaginaryBits ^ (imaginaryBits >>> 32))); |
| } |
| |
| @Override |
| public boolean equals(final @Nullable Object obj) { |
| if (!(obj instanceof Complex)) { |
| return false; |
| } |
| final Complex other= (Complex) obj; |
| return (this.realValue == other.realValue && this.imaginaryValue == other.imaginaryValue); |
| } |
| |
| @Override |
| public String toString() { |
| final StringBuilder sb= new StringBuilder(32); |
| sb.append(Double.toString(this.realValue)); |
| if (this.imaginaryValue >= 0.0) { |
| sb.append('+'); |
| } |
| sb.append(Double.toString(this.imaginaryValue)); |
| sb.append('i'); |
| return sb.toString(); |
| } |
| |
| } |
| |
| |
| boolean isNaN(int idx); |
| boolean isNaN(long idx); |
| |
| @Override |
| @Nullable Complex get(int idx); |
| @Override |
| @Nullable Complex get(long idx); |
| |
| @Override |
| @Nullable Complex [] toArray(); |
| |
| } |