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public interface UpdatablePIntegerArray extends PIntegerArray, UpdatablePFixedArray, UpdatablePNumberArray
AlgART array of any fixed-point primitive numeric elements (byte, short, int or long), read/write access, no resizing.
Any class implementing this interface must implement one of
UpdatableByteArray, UpdatableShortArray,
UpdatableIntArray, UpdatableLongArray
subinterfaces.
AlgART Laboratory 2007-2013
| Modifier and Type | Method and Description |
|---|---|
UpdatablePIntegerArray |
asUnresizable()
Returns an unresizable view of this array. |
UpdatablePIntegerArray |
subArr(long position,
long count)
Equivalent to subArray(position, position + count). |
UpdatablePIntegerArray |
subArray(long fromIndex,
long toIndex)
Returns a view of the portion of this array between fromIndex, inclusive, and toIndex, exclusive. |
| Methods inherited from interface net.algart.arrays.PIntegerArray |
|---|
asImmutable, asTrustedImmutable, mutableClone, mutableType, type, updatableClone, updatableType |
| Methods inherited from interface net.algart.arrays.PFixedArray |
|---|
getInt, getLong, indexOf, lastIndexOf, maxPossibleValue, minPossibleValue |
| Methods inherited from interface net.algart.arrays.UpdatablePArray |
|---|
fill, fill, fill, fill, setDouble, setInt, setLong |
| Methods inherited from interface net.algart.arrays.PArray |
|---|
bitsPerElement, getDouble, indexOf, isZeroFilled, lastIndexOf, maxPossibleValue, minPossibleValue |
| Methods inherited from interface net.algart.arrays.UpdatableArray |
|---|
asCopyOnNextWrite, copy, copy, copy, setData, setData, setElement, setNonNew, shallowClone, swap, swap, swap |
| Methods inherited from interface net.algart.arrays.Array |
|---|
buffer, buffer, buffer, buffer, byteOrder, capacity, checkUnallowedMutation, elementType, equals, flushResources, flushResources, freeResources, freeResources, getData, getData, getElement, hashCode, isCopyOnNextWrite, isImmutable, isLazy, isNew, isNewReadOnlyView, isUnresizable, length, loadResources, newJavaArray, toString |
| Method Detail |
|---|
UpdatablePIntegerArray subArray(long fromIndex,
long toIndex)
ArrayArray.capacity() method) will be
equal to the its length (returned by Array.length(), that is toIndex-fromIndex.
type of elements of the returned array is the same
as the type of elements of this array.immutable,
trusted immutable or
copy-on-next-write, if, and only if,
this array is immutable, trusted immutable or copy-on-next-write correspondingly.UpdatableArray interface,
then the returned array also implements it.
If (and only if) this array implements DirectAccessible interface,
then the returned array also implements it.
The returned array never implements MutableArray interface;
it is always unresizable.Like List.subList method, this method eliminates the need
for explicit range operations.
For example, you may use Arrays.sort(UpdatableArray, ArrayComparator)
method for sorting a fragment of the array.
Unlike List.subList, the semantics of the array returned
by this method is well-defined in any case, even in case of
resizing of the source array.
Namely, if the internal storage of this or returned array is reallocated,
then the returned array will cease to be a view of this array.
The only possible reasons for reallocation are the following:
calling MutableArray.length(long),
MutableArray.ensureCapacity(long) or MutableArray.trim() methods
for this array, or any modification of this or returned array in a case when
this array is copy-on-next-write.
Also, if the length of this array will be reduced,
it can lead to clearing some elements in returned array:
see comments to MutableArray.length(long) method.
subArray in interface ArraysubArray in interface UpdatableArraysubArray in interface UpdatablePArraysubArray in interface UpdatablePFixedArrayfromIndex - low endpoint (inclusive) of the subarray.toIndex - high endpoint (exclusive) of the subarray.Array.subArr(long, long)
UpdatablePIntegerArray subArr(long position,
long count)
ArraysubArray(position, position + count).
The only possible difference is other exception messages.
If position+count>Long.MAX_VALUE (overflow),
an exception message is allowed to be not fully correct
(maximal speed is more important than absolutely correct exception messages for such exotic situations).
subArr in interface ArraysubArr in interface UpdatableArraysubArr in interface UpdatablePArraysubArr in interface UpdatablePFixedArrayposition - start position (inclusive) of the subarray.count - number of elements in the subarray.Array.subArray(long, long)UpdatablePIntegerArray asUnresizable()
UpdatableArrayThe returned view (when it is not a reference to this object) contains the same elements
as this array, but independent length, start offset, capacity, copy-on-next-write and
possible other information about array characteristics besides its elements,
as for UpdatableArray.shallowClone() method.
If modifications of this or returned array characteristics lead to reallocation
of the internal storage, then the returned array ceases to be a view of this array.
The only possible reasons for reallocation are the following:
calling MutableArray.length(long),
MutableArray.ensureCapacity(long) or MutableArray.trim() methods
for this array, or any modification of this or returned array in a case when
this array is copy-on-next-write.
Resizable arrays, created by this package, implement full MutableArray
interface, but unresizable ones implement only its UpdatableArray superinterface.
asUnresizable in interface UpdatableArrayasUnresizable in interface UpdatablePArrayasUnresizable in interface UpdatablePFixedArrayArray.isUnresizable()
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