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oj! Algorithms - ojAlgo - is Open Source Java code that has to do with mathematics, linear algebra and optimisation.
/*
* Copyright 1997-2022 Optimatika
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package org.ojalgo.structure;
import java.util.List;
import org.ojalgo.function.FunctionSet;
import org.ojalgo.function.NullaryFunction;
import org.ojalgo.scalar.Scalar.Factory;
public interface Factory2D extends FactorySupplement {
/**
* Should only be implemented by factories that always (or primarily) produce dense structures.
*
* @author apete
*/
interface Dense extends Factory2D {
default I column(final double... elements) {
return this.columns(elements);
}
I columns(Access1D... source);
I columns(Comparable[]... source);
I columns(double[]... source);
@SuppressWarnings("unchecked")
I columns(List>... source);
I copy(Access2D source);
I makeFilled(long rows, long columns, NullaryFunction supplier);
default I makeFilled(final Structure2D shape, final NullaryFunction supplier) {
return this.makeFilled(shape.countRows(), shape.countColumns(), supplier);
}
default I row(final double... elements) {
return this.rows(elements);
}
I rows(Access1D... source);
I rows(Comparable[]... source);
I rows(double[]... source);
@SuppressWarnings("unchecked")
I rows(List>... source);
}
/**
* For when the structures can be either dense or sparse.
*
* @author apete
*/
interface MayBeSparse, SR extends Mutate2D.Receiver> extends Factory2D {
DR makeDense(long rows, long columns);
default DR makeDense(final Structure2D shape) {
return this.makeDense(shape.countRows(), shape.countColumns());
}
SR makeSparse(long rows, long columns);
default SR makeSparse(final Structure2D shape) {
return this.makeSparse(shape.countRows(), shape.countColumns());
}
}
default Factory1D asFactory1D() {
return new Factory1D() {
public FunctionSet function() {
return Factory2D.this.function();
}
public I make(final long count) {
return Factory2D.this.make(count, 1L);
}
public Factory scalar() {
return Factory2D.this.scalar();
}
};
}
default I make(final int rows, final int columns) {
return this.make((long) rows, (long) columns);
}
I make(long rows, long columns);
default I make(final Structure2D shape) {
return this.make(shape.countRows(), shape.countColumns());
}
}