public class SparseHashedShortArray extends SparseShortArray
SparseShortArray implementation based on a
TIntShortHashMap. Unlike the SparseBinSearchShortArray
implementation, this class should be good for the case
where random insertion is used frequently (O(1) insert complexity).
In the worst-case search is O(n), although in practice it should be better.
Note that the entries() method will in general not return
the entries in index order.
SparseShortArray.DualEntry, SparseShortArray.EntryDEFAULT_CAPACITY, length| Constructor and Description |
|---|
SparseHashedShortArray(int length)
Construct the array with the given length
|
SparseHashedShortArray(int length,
float density)
Construct the array with the given length and expected density
|
SparseHashedShortArray(int length,
int capacity)
Construct the array with the given length and capacity for non-zero elements
|
SparseHashedShortArray(short[] values) |
| Modifier and Type | Method and Description |
|---|---|
void |
compact()
Compact the space being used by the array if possible.
|
SparseShortArray |
copy()
Deep copy the array.
|
Iterable<SparseShortArray.Entry> |
entries()
Provide an iterator over the non-zero values.
|
boolean |
equals(Object obj) |
short |
get(int key)
Get the value at the given index.
|
int |
hashCode() |
short |
increment(int key,
short value)
Increment the value at the given index.
|
int[] |
indices() |
boolean |
isUsed(int key)
Check whether the given index is used (i.e.
|
SparseShortArray |
reverse()
Reverse the elements, returning this.
|
short |
set(int key,
short value)
Set the value at the given index.
|
int |
used() |
short[] |
values() |
add, addInplace, asciiHeader, binaryHeader, concatenate, concatenate, concatenateArrays, density, dotProduct, intersectEntries, length, maxIndex, maxValue, minIndex, minValue, multiply, multiplyInplace, readASCII, readBinary, setLength, size, subtract, subtractInplace, sumValues, sumValuesSquared, toArray, toArray, unionEntries, writeASCII, writeBinarypublic SparseHashedShortArray(short[] values)
values - public SparseHashedShortArray(int length)
length - the lengthpublic SparseHashedShortArray(int length, int capacity)
length - the lengthcapacity - the capacitypublic SparseHashedShortArray(int length, float density)
length - the lengthdensity - the densitypublic short increment(int key, short value)
SparseShortArrayincrement in class SparseShortArraykey - the indexvalue - the amount to increment by.public int[] indices()
indices in class SparseShortArraypublic short[] values()
values in class SparseShortArraypublic Iterable<SparseShortArray.Entry> entries()
SparseShortArray
Note: the SparseShortArray.Entry returned by the iterator
is always the same object. In addition, the iterator
cannot affect the value of anything in the array (i.e.
changing anything in the SparseShortArray.Entry has no effect
on the actual array).
entries in class SparseShortArraypublic short get(int key)
SparseShortArrayget in class SparseShortArraykey - the indexpublic boolean isUsed(int key)
SparseShortArrayisUsed in class SparseShortArraykey - the indexpublic short set(int key, short value)
SparseShortArrayset in class SparseShortArraykey - the index.value - the value to set.public int used()
used in class SparseShortArraypublic void compact()
SparseShortArraycompact in class SparseShortArraypublic SparseShortArray copy()
SparseShortArraycopy in class SparseShortArraypublic SparseShortArray reverse()
SparseShortArrayreverse in class SparseShortArray