Package org.bytedeco.javacpp
Class LongPointer
- java.lang.Object
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- org.bytedeco.javacpp.Pointer
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- org.bytedeco.javacpp.LongPointer
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- All Implemented Interfaces:
java.lang.AutoCloseable
@Properties(inherit=javacpp.class) public class LongPointer extends Pointer
The peer class to native pointers and arrays oflong long
. All operations take into account the position and limit, when appropriate.
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Nested Class Summary
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Nested classes/interfaces inherited from class org.bytedeco.javacpp.Pointer
Pointer.CustomDeallocator, Pointer.Deallocator, Pointer.DeallocatorReference, Pointer.DeallocatorThread, Pointer.NativeDeallocator, Pointer.ProxyDeallocator, Pointer.ReferenceCounter
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Field Summary
Fields Modifier and Type Field Description private static Logger
logger
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Fields inherited from class org.bytedeco.javacpp.Pointer
address, capacity, deallocatorThread, limit, maxBytes, maxPhysicalBytes, maxRetries, position
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Constructor Summary
Constructors Constructor Description LongPointer()
LongPointer(long size)
Allocates a nativelong long
array of the given size.LongPointer(long... array)
Allocates enough memory for the array and copies it.LongPointer(java.nio.LongBuffer buffer)
For direct buffers, callsPointer(Buffer)
, while for buffers backed with an array, allocates enough memory for the array and copies it.LongPointer(Pointer p)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description private void
allocateArray(long size)
java.nio.LongBuffer
asBuffer()
Same asPointer.asByteBuffer()
, but can be overridden to return subclasses of Buffer.LongPointer
capacity(long capacity)
Sets the capacity and returns this.long
get()
long
get(long i)
LongPointer
get(long[] array)
LongPointer
get(long[] array, int offset, int length)
Reads a portion of the native array into a Java array.LongPointer
getPointer(long i)
ReturnsgetPointer(getClass(), i)
.LongPointer
limit(long limit)
Sets the limit and returns this.LongPointer
position(long position)
Sets the position and returns this.LongPointer
put(long l)
LongPointer
put(long... array)
LongPointer
put(long[] array, int offset, int length)
Writes a portion of a Java array into the native array.LongPointer
put(long i, long l)
Copies thelong long
value to the i-th element of a native array.int
sizeof()
Returns 1 for Pointer or BytePointer elseLoader.sizeof(getClass())
or -1 on error.-
Methods inherited from class org.bytedeco.javacpp.Pointer
address, asByteBuffer, availablePhysicalBytes, calloc, capacity, close, deallocate, deallocate, deallocateReferences, deallocator, deallocator, equals, fill, formatBytes, free, getDirectBufferAddress, getPointer, getPointer, getPointer, hashCode, init, interruptDeallocatorThread, isNull, isNull, limit, malloc, maxBytes, maxPhysicalBytes, memchr, memcmp, memcpy, memmove, memset, offsetAddress, offsetof, offsetof, parseBytes, physicalBytes, physicalBytesInaccurate, position, put, realloc, referenceCount, releaseReference, retainReference, setNull, sizeof, toString, totalBytes, totalCount, totalPhysicalBytes, withDeallocator, zero
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Field Detail
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logger
private static final Logger logger
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Constructor Detail
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LongPointer
public LongPointer(long... array)
Allocates enough memory for the array and copies it.- Parameters:
array
- the array to copy- See Also:
put(long[])
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LongPointer
public LongPointer(java.nio.LongBuffer buffer)
For direct buffers, callsPointer(Buffer)
, while for buffers backed with an array, allocates enough memory for the array and copies it.- Parameters:
buffer
- the Buffer to reference or copy- See Also:
put(long[])
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LongPointer
public LongPointer(long size)
Allocates a nativelong long
array of the given size.- Parameters:
size
- the number oflong long
elements to allocate
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LongPointer
public LongPointer()
- See Also:
Pointer()
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LongPointer
public LongPointer(Pointer p)
- See Also:
Pointer(Pointer)
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Method Detail
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allocateArray
private void allocateArray(long size)
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position
public LongPointer position(long position)
Description copied from class:Pointer
Sets the position and returns this. That makes thearray.position(i)
statement sort of equivalent to thearray[i]
statement in C++.- Overrides:
position
in classPointer
- Parameters:
position
- the new position- Returns:
- this
- See Also:
Pointer.position(long)
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limit
public LongPointer limit(long limit)
Description copied from class:Pointer
Sets the limit and returns this. Used to limit the size of an operation on this object.- Overrides:
limit
in classPointer
- Parameters:
limit
- the new limit- Returns:
- this
- See Also:
Pointer.limit(long)
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capacity
public LongPointer capacity(long capacity)
Description copied from class:Pointer
Sets the capacity and returns this. Should not be called more than once after allocation.- Overrides:
capacity
in classPointer
- Parameters:
capacity
- the new capacity- Returns:
- this
- See Also:
Pointer.capacity(long)
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sizeof
public int sizeof()
Description copied from class:Pointer
Returns 1 for Pointer or BytePointer elseLoader.sizeof(getClass())
or -1 on error.
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getPointer
public LongPointer getPointer(long i)
Description copied from class:Pointer
ReturnsgetPointer(getClass(), i)
.- Overrides:
getPointer
in classPointer
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get
public long get()
- Returns:
get(0)
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get
public long get(long i)
- Returns:
- the i-th
long long
of a native array
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put
public LongPointer put(long l)
- Returns:
put(0, l)
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put
public LongPointer put(long i, long l)
Copies thelong long
value to the i-th element of a native array.- Parameters:
i
- the index into the arrayl
- thelong long
value to copy- Returns:
- this
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get
public LongPointer get(long[] array)
- Returns:
get(array, 0, array.length)
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put
public LongPointer put(long... array)
- Returns:
put(array, 0, array.length)
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get
public LongPointer get(long[] array, int offset, int length)
Reads a portion of the native array into a Java array.- Parameters:
array
- the array to write tooffset
- the offset into the array where to start writinglength
- the length of data to read and write- Returns:
- this
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put
public LongPointer put(long[] array, int offset, int length)
Writes a portion of a Java array into the native array.- Parameters:
array
- the array to read fromoffset
- the offset into the array where to start readinglength
- the length of data to read and write- Returns:
- this
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asBuffer
public final java.nio.LongBuffer asBuffer()
Description copied from class:Pointer
Same asPointer.asByteBuffer()
, but can be overridden to return subclasses of Buffer.- Overrides:
asBuffer
in classPointer
- Returns:
asByteBuffer().asLongBuffer()
- See Also:
BytePointer.asBuffer()
,ShortPointer.asBuffer()
,IntPointer.asBuffer()
,asBuffer()
,FloatPointer.asBuffer()
,DoublePointer.asBuffer()
,CharPointer.asBuffer()
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