src/extra166y/ParallelDoubleArrayWithMapping.java

/*
 * Written by Doug Lea with assistance from members of JCP JSR-166
 * Expert Group and released to the public domain, as explained at
 * http://creativecommons.org/publicdomain/zero/1.0/
 */

package extra166y;

import jsr166y.*;
import static extra166y.Ops.*;
import java.util.*;
import java.util.concurrent.atomic.*;
import java.lang.reflect.Array;

/**
 * A prefix view of ParallelDoubleArray that causes operations to apply
 * to mappings of elements, not to the elements themselves.
 * Instances of this class may be constructed only via prefix
 * methods of ParallelDoubleArray or its other prefix classes.
 */
public abstract class ParallelDoubleArrayWithMapping<U> extends AbstractParallelAnyArray.DPap {
    ParallelDoubleArrayWithMapping
        (ForkJoinPool ex, int origin, int fence, double[] array) {
        super(ex, origin, fence, array);
    }

    /**
     * Applies the given procedure to mapped elements.
     * @param procedure the procedure
     */
    public void apply(Procedure<? super U> procedure) {
        ex.invoke(new PAS.FJOApply(this, origin, fence, null, procedure));
    }

    /**
     * Returns reduction of mapped elements.
     * @param reducer the reducer
     * @param base the result for an empty array
     * @return reduction
     */
    public U reduce(Reducer<U> reducer, U base) {
        PAS.FJOReduce f = new PAS.FJOReduce
            (this, origin, fence, null, reducer, base);
        ex.invoke(f);
        return (U)(f.result);
    }

    /**
     * Returns mapping of some element matching bound and filter
     * constraints, or null if none.
     * @return mapping of matching element, or null if none
     */
    public U any() {
        int i = anyIndex();
        return (i < 0) ? null : (U)oget(i);
    }

    /**
     * Returns the minimum mapped element, or null if empty.
     * @param comparator the comparator
     * @return minimum mapped element, or null if empty
     */
    public U min(Comparator<? super U> comparator) {
        return reduce(CommonOps.<U>minReducer(comparator), null);
    }

    /**
     * Returns the minimum mapped element, or null if empty,
     * assuming that all elements are Comparables.
     * @return minimum mapped element, or null if empty
     * @throws ClassCastException if any element is not Comparable
     */
    public U min() {
        return reduce((Reducer<U>)(CommonOps.castedMinReducer()), null);
    }

    /**
     * Returns the maximum mapped element, or null if empty.
     * @param comparator the comparator
     * @return maximum mapped element, or null if empty
     */
    public U max(Comparator<? super U> comparator) {
        return reduce(CommonOps.<U>maxReducer(comparator), null);
    }

    /**
     * Returns the maximum mapped element, or null if empty,
     * assuming that all elements are Comparables.
     * @return maximum mapped element, or null if empty
     * @throws ClassCastException if any element is not Comparable
     */
    public U max() {
        return reduce((Reducer<U>)(CommonOps.castedMaxReducer()), null);
    }

    /**
     * Returns summary statistics, using the given comparator
     * to locate minimum and maximum elements.
     * @param comparator the comparator to use for
     * locating minimum and maximum elements
     * @return the summary
     */
    public ParallelArray.SummaryStatistics<U> summary
        (Comparator<? super U> comparator) {
        PAS.FJOStats f = new PAS.FJOStats
            (this, origin, fence, null, comparator);
        ex.invoke(f);
        return (ParallelArray.SummaryStatistics<U>)f;
    }

    /**
     * Returns summary statistics, assuming that all elements are
     * Comparables.
     * @return the summary
     */
    public ParallelArray.SummaryStatistics<U> summary() {
        return summary((Comparator<? super U>)(CommonOps.castedComparator()));
    }

    /**
     * Returns a new ParallelArray holding elements.
     * @return a new ParallelArray holding elements
     */
    public ParallelArray<U> all() {
        return new ParallelArray<U>(ex, (U[])allObjects(null));
    }

    /**
     * Returns a new ParallelArray with the given element type holding
     * elements.
     * @param elementType the type of the elements
     * @return a new ParallelArray holding elements
     */
    public ParallelArray<U> all(Class<? super U> elementType) {
        return new ParallelArray<U>(ex, (U[])allObjects(elementType));
    }

    /**
     * Returns an operation prefix that causes a method to operate
     * on mapped elements of the array using the given op
     * applied to current op's results.
     * @param op the op
     * @return operation prefix
     */
    public abstract <V> ParallelDoubleArrayWithMapping<V> withMapping
        (Op<? super U, ? extends V> op);

    /**
     * Returns an operation prefix that causes a method to operate
     * on mapped elements of the array using the given op
     * applied to current op's results.
     * @param op the op
     * @return operation prefix
     */
    public abstract ParallelDoubleArrayWithDoubleMapping withMapping
        (ObjectToDouble<? super U> op);

    /**
     * Returns an operation prefix that causes a method to operate
     * on mapped elements of the array using the given op
     * applied to current op's results.
     * @param op the op
     * @return operation prefix
     */
    public abstract ParallelDoubleArrayWithLongMapping withMapping
        (ObjectToLong<? super U> op);

    /**
     * Returns an operation prefix that causes a method to operate
     * on binary mappings of this array and the other array.
     * @param combiner the combiner
     * @param other the other array
     * @return operation prefix
     * @throws IllegalArgumentException if other array is a
     * filtered view (all filters must precede all mappings)
     */
    public <V,W,X> ParallelDoubleArrayWithMapping<W> withMapping
        (BinaryOp<? super U, ? super V, ? extends W> combiner,
         ParallelArrayWithMapping<X,V> other) {
        if (other.hasFilter()) throw new IllegalArgumentException();
        return withIndexedMapping
            (AbstractParallelAnyArray.indexedMapper(combiner, other, origin));
    }

    /**
     * Returns an operation prefix that causes a method to operate
     * on binary mappings of this array and the other array.
     * @param combiner the combiner
     * @param other the other array
     * @return operation prefix
     * @throws IllegalArgumentException if other array is a
     * filtered view (all filters must precede all mappings)
     */
    public <V> ParallelDoubleArrayWithMapping<V> withMapping
        (ObjectAndDoubleToObject<? super U, ? extends V> combiner,
         ParallelDoubleArrayWithDoubleMapping other) {
        if (other.hasFilter()) throw new IllegalArgumentException();
        return withIndexedMapping
            (AbstractParallelAnyArray.indexedMapper(combiner, other, origin));
    }

    /**
     * Returns an operation prefix that causes a method to operate
     * on binary mappings of this array and the other array.
     * @param combiner the combiner
     * @param other the other array
     * @return operation prefix
     * @throws IllegalArgumentException if other array is a
     * filtered view (all filters must precede all mappings)
     */
    public <V> ParallelDoubleArrayWithMapping<V> withMapping
        (ObjectAndLongToObject<? super U, ? extends V> combiner,
         ParallelLongArrayWithLongMapping other) {
        if (other.hasFilter()) throw new IllegalArgumentException();
        return withIndexedMapping
            (AbstractParallelAnyArray.indexedMapper(combiner, other, origin));
    }


    /**
     * Returns an operation prefix that causes a method to operate
     * on binary mappings of this array and the other array.
     * @param combiner the combiner
     * @param other the other array
     * @return operation prefix
     * @throws IllegalArgumentException if other array is a
     * filtered view (all filters must precede all mappings)
     */
    public <V,W> ParallelDoubleArrayWithDoubleMapping withMapping
        (ObjectAndObjectToDouble<? super U, ? super V> combiner,
         ParallelArrayWithMapping<W,V> other) {
        if (other.hasFilter()) throw new IllegalArgumentException();
        return withIndexedMapping
            (AbstractParallelAnyArray.indexedMapper(combiner, other, origin));
    }

    /**
     * Returns an operation prefix that causes a method to operate
     * on binary mappings of this array and the other array.
     * @param combiner the combiner
     * @param other the other array
     * @return operation prefix
     * @throws IllegalArgumentException if other array is a
     * filtered view (all filters must precede all mappings)
     */
    public ParallelDoubleArrayWithDoubleMapping withMapping
        (ObjectAndDoubleToDouble<? super U> combiner,
         ParallelDoubleArrayWithDoubleMapping other) {
        if (other.hasFilter()) throw new IllegalArgumentException();
        return withIndexedMapping
            (AbstractParallelAnyArray.indexedMapper(combiner, other, origin));
    }

    /**
     * Returns an operation prefix that causes a method to operate
     * on binary mappings of this array and the other array.
     * @param combiner the combiner
     * @param other the other array
     * @return operation prefix
     */
    public ParallelDoubleArrayWithDoubleMapping withMapping
        (ObjectAndLongToDouble<? super U> combiner,
         ParallelLongArrayWithLongMapping other) {
        if (other.hasFilter()) throw new IllegalArgumentException();
        return withIndexedMapping
            (AbstractParallelAnyArray.indexedMapper(combiner, other, origin));
    }

    /**
     * Returns an operation prefix that causes a method to operate
     * on binary mappings of this array and the other array.
     * @param combiner the combiner
     * @param other the other array
     * @return operation prefix
     * @throws IllegalArgumentException if other array is a
     * filtered view (all filters must precede all mappings)
     */
    public <V,W> ParallelDoubleArrayWithLongMapping withMapping
        (ObjectAndObjectToLong<? super U, ? super V> combiner,
         ParallelArrayWithMapping<W,V> other) {
        if (other.hasFilter()) throw new IllegalArgumentException();
        return withIndexedMapping
            (AbstractParallelAnyArray.indexedMapper(combiner, other, origin));
    }

    /**
     * Returns an operation prefix that causes a method to operate
     * on binary mappings of this array and the other array.
     * @param combiner the combiner
     * @param other the other array
     * @return operation prefix
     * @throws IllegalArgumentException if other array is a
     * filtered view (all filters must precede all mappings)
     */
    public ParallelDoubleArrayWithLongMapping withMapping
        (ObjectAndDoubleToLong<? super U> combiner,
         ParallelDoubleArrayWithDoubleMapping other) {
        if (other.hasFilter()) throw new IllegalArgumentException();
        return withIndexedMapping
            (AbstractParallelAnyArray.indexedMapper(combiner, other, origin));
    }

    /**
     * Returns an operation prefix that causes a method to operate
     * on binary mappings of this array and the other array.
     * @param combiner the combiner
     * @param other the other array
     * @return operation prefix
     * @throws IllegalArgumentException if other array is a
     * filtered view (all filters must precede all mappings)
     */
    public ParallelDoubleArrayWithLongMapping withMapping
        (ObjectAndLongToLong<? super U> combiner,
         ParallelLongArrayWithLongMapping other) {
        if (other.hasFilter()) throw new IllegalArgumentException();
        return withIndexedMapping
            (AbstractParallelAnyArray.indexedMapper(combiner, other, origin));
    }

    /**
     * Returns an operation prefix that causes a method to operate
     * on mappings of this array using the given mapper that
     * accepts as arguments an element's current index and value
     * (as mapped by preceding mappings, if any), and produces a
     * new value.
     * @param mapper the mapper
     * @return operation prefix
     */
    public abstract <V> ParallelDoubleArrayWithMapping<V> withIndexedMapping
        (IntAndObjectToObject<? super U, ? extends V> mapper);

    /**
     * Returns an operation prefix that causes a method to operate
     * on mappings of this array using the given mapper that
     * accepts as arguments an element's current index and value
     * (as mapped by preceding mappings, if any), and produces a
     * new value.
     * @param mapper the mapper
     * @return operation prefix
     */
    public abstract ParallelDoubleArrayWithDoubleMapping withIndexedMapping
        (IntAndObjectToDouble<? super U> mapper);

    /**
     * Returns an operation prefix that causes a method to operate
     * on mappings of this array using the given mapper that
     * accepts as arguments an element's current index and value
     * (as mapped by preceding mappings, if any), and produces a
     * new value.
     * @param mapper the mapper
     * @return operation prefix
     */
    public abstract ParallelDoubleArrayWithLongMapping withIndexedMapping
        (IntAndObjectToLong<? super U> mapper);

    /**
     * Returns an Iterable view to sequentially step through mapped
     * elements also obeying bound and filter constraints, without
     * performing computations to evaluate them in parallel.
     * @return the Iterable view
     */
    public Iterable<U> sequentially() {
        return new Sequentially<U>();
    }

}
Revision:	1.6
Committed:	Sun Jan 18 20:17:32 2015 UTC (9 years, 3 months ago) by jsr166
Branch:	MAIN
Changes since 1.5:	+1 -0 lines
Log Message:	exactly one blank line before and after package statements
#	User	Rev	Content
1	dl	1.1	/*
2			* Written by Doug Lea with assistance from members of JCP JSR-166
3			* Expert Group and released to the public domain, as explained at
4	jsr166	1.3	* http://creativecommons.org/publicdomain/zero/1.0/
5	dl	1.1	*/
6
7			package extra166y;
8	jsr166	1.6
9	dl	1.1	import jsr166y.*;
10			import static extra166y.Ops.*;
11			import java.util.*;
12			import java.util.concurrent.atomic.*;
13			import java.lang.reflect.Array;
14
15			/**
16			* A prefix view of ParallelDoubleArray that causes operations to apply
17			* to mappings of elements, not to the elements themselves.
18			* Instances of this class may be constructed only via prefix
19			* methods of ParallelDoubleArray or its other prefix classes.
20			*/
21			public abstract class ParallelDoubleArrayWithMapping<U> extends AbstractParallelAnyArray.DPap {
22			ParallelDoubleArrayWithMapping
23			(ForkJoinPool ex, int origin, int fence, double[] array) {
24			super(ex, origin, fence, array);
25			}
26
27			/**
28	jsr166	1.5	* Applies the given procedure to mapped elements.
29	dl	1.1	* @param procedure the procedure
30			*/
31			public void apply(Procedure<? super U> procedure) {
32			ex.invoke(new PAS.FJOApply(this, origin, fence, null, procedure));
33			}
34
35			/**
36	jsr166	1.5	* Returns reduction of mapped elements.
37	dl	1.1	* @param reducer the reducer
38			* @param base the result for an empty array
39			* @return reduction
40			*/
41			public U reduce(Reducer<U> reducer, U base) {
42			PAS.FJOReduce f = new PAS.FJOReduce
43			(this, origin, fence, null, reducer, base);
44			ex.invoke(f);
45			return (U)(f.result);
46			}
47
48			/**
49			* Returns mapping of some element matching bound and filter
50			* constraints, or null if none.
51	jsr166	1.5	* @return mapping of matching element, or null if none
52	dl	1.1	*/
53			public U any() {
54			int i = anyIndex();
55	jsr166	1.2	return (i < 0) ? null : (U)oget(i);
56	dl	1.1	}
57
58			/**
59	jsr166	1.5	* Returns the minimum mapped element, or null if empty.
60	dl	1.1	* @param comparator the comparator
61			* @return minimum mapped element, or null if empty
62			*/
63			public U min(Comparator<? super U> comparator) {
64			return reduce(CommonOps.<U>minReducer(comparator), null);
65			}
66
67			/**
68			* Returns the minimum mapped element, or null if empty,
69	jsr166	1.5	* assuming that all elements are Comparables.
70	dl	1.1	* @return minimum mapped element, or null if empty
71	jsr166	1.5	* @throws ClassCastException if any element is not Comparable
72	dl	1.1	*/
73			public U min() {
74			return reduce((Reducer<U>)(CommonOps.castedMinReducer()), null);
75			}
76
77			/**
78	jsr166	1.5	* Returns the maximum mapped element, or null if empty.
79	dl	1.1	* @param comparator the comparator
80			* @return maximum mapped element, or null if empty
81			*/
82			public U max(Comparator<? super U> comparator) {
83			return reduce(CommonOps.<U>maxReducer(comparator), null);
84			}
85
86			/**
87	jsr166	1.5	* Returns the maximum mapped element, or null if empty,
88			* assuming that all elements are Comparables.
89	dl	1.1	* @return maximum mapped element, or null if empty
90	jsr166	1.5	* @throws ClassCastException if any element is not Comparable
91	dl	1.1	*/
92			public U max() {
93			return reduce((Reducer<U>)(CommonOps.castedMaxReducer()), null);
94			}
95
96			/**
97			* Returns summary statistics, using the given comparator
98			* to locate minimum and maximum elements.
99			* @param comparator the comparator to use for
100			* locating minimum and maximum elements
101	jsr166	1.5	* @return the summary
102	dl	1.1	*/
103			public ParallelArray.SummaryStatistics<U> summary
104			(Comparator<? super U> comparator) {
105			PAS.FJOStats f = new PAS.FJOStats
106			(this, origin, fence, null, comparator);
107			ex.invoke(f);
108			return (ParallelArray.SummaryStatistics<U>)f;
109			}
110
111			/**
112			* Returns summary statistics, assuming that all elements are
113	jsr166	1.5	* Comparables.
114			* @return the summary
115	dl	1.1	*/
116			public ParallelArray.SummaryStatistics<U> summary() {
117			return summary((Comparator<? super U>)(CommonOps.castedComparator()));
118			}
119
120			/**
121	jsr166	1.5	* Returns a new ParallelArray holding elements.
122	dl	1.1	* @return a new ParallelArray holding elements
123			*/
124			public ParallelArray<U> all() {
125			return new ParallelArray<U>(ex, (U[])allObjects(null));
126			}
127
128			/**
129			* Returns a new ParallelArray with the given element type holding
130	jsr166	1.5	* elements.
131	dl	1.1	* @param elementType the type of the elements
132			* @return a new ParallelArray holding elements
133			*/
134			public ParallelArray<U> all(Class<? super U> elementType) {
135			return new ParallelArray<U>(ex, (U[])allObjects(elementType));
136			}
137
138			/**
139			* Returns an operation prefix that causes a method to operate
140			* on mapped elements of the array using the given op
141	jsr166	1.5	* applied to current op's results.
142	dl	1.1	* @param op the op
143			* @return operation prefix
144			*/
145			public abstract <V> ParallelDoubleArrayWithMapping<V> withMapping
146			(Op<? super U, ? extends V> op);
147
148			/**
149			* Returns an operation prefix that causes a method to operate
150			* on mapped elements of the array using the given op
151	jsr166	1.5	* applied to current op's results.
152	dl	1.1	* @param op the op
153			* @return operation prefix
154			*/
155			public abstract ParallelDoubleArrayWithDoubleMapping withMapping
156			(ObjectToDouble<? super U> op);
157
158			/**
159			* Returns an operation prefix that causes a method to operate
160			* on mapped elements of the array using the given op
161	jsr166	1.5	* applied to current op's results.
162	dl	1.1	* @param op the op
163			* @return operation prefix
164			*/
165			public abstract ParallelDoubleArrayWithLongMapping withMapping
166			(ObjectToLong<? super U> op);
167
168			/**
169			* Returns an operation prefix that causes a method to operate
170			* on binary mappings of this array and the other array.
171			* @param combiner the combiner
172			* @param other the other array
173			* @return operation prefix
174			* @throws IllegalArgumentException if other array is a
175	jsr166	1.5	* filtered view (all filters must precede all mappings)
176	dl	1.1	*/
177			public <V,W,X> ParallelDoubleArrayWithMapping<W> withMapping
178			(BinaryOp<? super U, ? super V, ? extends W> combiner,
179			ParallelArrayWithMapping<X,V> other) {
180			if (other.hasFilter()) throw new IllegalArgumentException();
181			return withIndexedMapping
182			(AbstractParallelAnyArray.indexedMapper(combiner, other, origin));
183			}
184
185			/**
186			* Returns an operation prefix that causes a method to operate
187			* on binary mappings of this array and the other array.
188			* @param combiner the combiner
189			* @param other the other array
190			* @return operation prefix
191			* @throws IllegalArgumentException if other array is a
192	jsr166	1.5	* filtered view (all filters must precede all mappings)
193	dl	1.1	*/
194			public <V> ParallelDoubleArrayWithMapping<V> withMapping
195			(ObjectAndDoubleToObject<? super U, ? extends V> combiner,
196			ParallelDoubleArrayWithDoubleMapping other) {
197			if (other.hasFilter()) throw new IllegalArgumentException();
198			return withIndexedMapping
199			(AbstractParallelAnyArray.indexedMapper(combiner, other, origin));
200			}
201
202			/**
203			* Returns an operation prefix that causes a method to operate
204			* on binary mappings of this array and the other array.
205			* @param combiner the combiner
206			* @param other the other array
207			* @return operation prefix
208			* @throws IllegalArgumentException if other array is a
209	jsr166	1.5	* filtered view (all filters must precede all mappings)
210	dl	1.1	*/
211			public <V> ParallelDoubleArrayWithMapping<V> withMapping
212			(ObjectAndLongToObject<? super U, ? extends V> combiner,
213			ParallelLongArrayWithLongMapping other) {
214			if (other.hasFilter()) throw new IllegalArgumentException();
215			return withIndexedMapping
216			(AbstractParallelAnyArray.indexedMapper(combiner, other, origin));
217			}
218
219
220			/**
221			* Returns an operation prefix that causes a method to operate
222			* on binary mappings of this array and the other array.
223			* @param combiner the combiner
224			* @param other the other array
225			* @return operation prefix
226			* @throws IllegalArgumentException if other array is a
227	jsr166	1.5	* filtered view (all filters must precede all mappings)
228	dl	1.1	*/
229			public <V,W> ParallelDoubleArrayWithDoubleMapping withMapping
230			(ObjectAndObjectToDouble<? super U, ? super V> combiner,
231			ParallelArrayWithMapping<W,V> other) {
232			if (other.hasFilter()) throw new IllegalArgumentException();
233			return withIndexedMapping
234			(AbstractParallelAnyArray.indexedMapper(combiner, other, origin));
235			}
236
237			/**
238			* Returns an operation prefix that causes a method to operate
239			* on binary mappings of this array and the other array.
240			* @param combiner the combiner
241			* @param other the other array
242			* @return operation prefix
243			* @throws IllegalArgumentException if other array is a
244	jsr166	1.5	* filtered view (all filters must precede all mappings)
245	dl	1.1	*/
246			public ParallelDoubleArrayWithDoubleMapping withMapping
247			(ObjectAndDoubleToDouble<? super U> combiner,
248			ParallelDoubleArrayWithDoubleMapping other) {
249			if (other.hasFilter()) throw new IllegalArgumentException();
250			return withIndexedMapping
251			(AbstractParallelAnyArray.indexedMapper(combiner, other, origin));
252			}
253
254			/**
255			* Returns an operation prefix that causes a method to operate
256			* on binary mappings of this array and the other array.
257			* @param combiner the combiner
258			* @param other the other array
259			* @return operation prefix
260			*/
261			public ParallelDoubleArrayWithDoubleMapping withMapping
262			(ObjectAndLongToDouble<? super U> combiner,
263			ParallelLongArrayWithLongMapping other) {
264			if (other.hasFilter()) throw new IllegalArgumentException();
265			return withIndexedMapping
266			(AbstractParallelAnyArray.indexedMapper(combiner, other, origin));
267			}
268
269			/**
270			* Returns an operation prefix that causes a method to operate
271			* on binary mappings of this array and the other array.
272			* @param combiner the combiner
273			* @param other the other array
274			* @return operation prefix
275			* @throws IllegalArgumentException if other array is a
276	jsr166	1.5	* filtered view (all filters must precede all mappings)
277	dl	1.1	*/
278			public <V,W> ParallelDoubleArrayWithLongMapping withMapping
279			(ObjectAndObjectToLong<? super U, ? super V> combiner,
280			ParallelArrayWithMapping<W,V> other) {
281			if (other.hasFilter()) throw new IllegalArgumentException();
282			return withIndexedMapping
283			(AbstractParallelAnyArray.indexedMapper(combiner, other, origin));
284			}
285
286			/**
287			* Returns an operation prefix that causes a method to operate
288			* on binary mappings of this array and the other array.
289			* @param combiner the combiner
290			* @param other the other array
291			* @return operation prefix
292			* @throws IllegalArgumentException if other array is a
293	jsr166	1.5	* filtered view (all filters must precede all mappings)
294	dl	1.1	*/
295			public ParallelDoubleArrayWithLongMapping withMapping
296			(ObjectAndDoubleToLong<? super U> combiner,
297			ParallelDoubleArrayWithDoubleMapping other) {
298			if (other.hasFilter()) throw new IllegalArgumentException();
299			return withIndexedMapping
300			(AbstractParallelAnyArray.indexedMapper(combiner, other, origin));
301			}
302
303			/**
304			* Returns an operation prefix that causes a method to operate
305			* on binary mappings of this array and the other array.
306			* @param combiner the combiner
307			* @param other the other array
308			* @return operation prefix
309			* @throws IllegalArgumentException if other array is a
310	jsr166	1.5	* filtered view (all filters must precede all mappings)
311	dl	1.1	*/
312			public ParallelDoubleArrayWithLongMapping withMapping
313			(ObjectAndLongToLong<? super U> combiner,
314			ParallelLongArrayWithLongMapping other) {
315			if (other.hasFilter()) throw new IllegalArgumentException();
316			return withIndexedMapping
317			(AbstractParallelAnyArray.indexedMapper(combiner, other, origin));
318			}
319
320			/**
321			* Returns an operation prefix that causes a method to operate
322			* on mappings of this array using the given mapper that
323			* accepts as arguments an element's current index and value
324			* (as mapped by preceding mappings, if any), and produces a
325			* new value.
326			* @param mapper the mapper
327			* @return operation prefix
328			*/
329			public abstract <V> ParallelDoubleArrayWithMapping<V> withIndexedMapping
330			(IntAndObjectToObject<? super U, ? extends V> mapper);
331
332			/**
333			* Returns an operation prefix that causes a method to operate
334			* on mappings of this array using the given mapper that
335			* accepts as arguments an element's current index and value
336			* (as mapped by preceding mappings, if any), and produces a
337			* new value.
338			* @param mapper the mapper
339			* @return operation prefix
340			*/
341			public abstract ParallelDoubleArrayWithDoubleMapping withIndexedMapping
342			(IntAndObjectToDouble<? super U> mapper);
343
344			/**
345			* Returns an operation prefix that causes a method to operate
346			* on mappings of this array using the given mapper that
347			* accepts as arguments an element's current index and value
348			* (as mapped by preceding mappings, if any), and produces a
349			* new value.
350			* @param mapper the mapper
351			* @return operation prefix
352			*/
353			public abstract ParallelDoubleArrayWithLongMapping withIndexedMapping
354			(IntAndObjectToLong<? super U> mapper);
355
356			/**
357			* Returns an Iterable view to sequentially step through mapped
358			* elements also obeying bound and filter constraints, without
359	jsr166	1.5	* performing computations to evaluate them in parallel.
360	dl	1.1	* @return the Iterable view
361			*/
362			public Iterable<U> sequentially() {
363			return new Sequentially<U>();
364			}
365
366			}