public final class XFloatSequence extends Object implements XFloatIterator
An XFloatSequence stores a set of bytes in native memory. Its views
the stored bytes as a sequence of floats and provides methods to read and
modify these values.
To use an instance of this class, the user first needs to initialize the instance by wrapping it around a memory region containing the serialized float sequence. This is done using one of the wrap() or setFrom() methods. Once the instance has been initialized, the user can use the data accessor and modification methods to access and/or modify the the sequence managed by this class.
| Modifier and Type | Method and Description |
|---|---|
static XFloatSequence |
create()
Create a new float sequence reader
|
int |
getTo(byte[] val,
int offset)
Copy the serialized float sequence to a byte array object
|
int |
getTo(float[] val,
int offset)
Copy the serialized float sequence to a float array object
|
int |
getTo(long addr,
int offset)
Copy the serialized float sequence to a native memory region
|
int |
getTo(com.neeve.quark.QuarkBuffer val,
int offset)
Copy the serialized float sequence to a
QuarkBuffer |
boolean |
hasNext()
Implementation of
XFloatIterator.hasNext() |
boolean |
isInitialized()
Get if the sequence has been initialized or nor
|
boolean |
isOwned()
Get if the sequence was initialized by copying or wrapping
|
XFloatIterator |
iterator()
Get an iterator to iterate over a float sequence values
|
float |
next()
Implementation of
XFloatIterator.next() |
int |
numElements()
Get the number of elements in a float sequence
|
void |
remove()
Implementation of
XFloatIterator.remove() |
XFloatSequence |
reset()
Reset a float sequence
|
int |
serializedLength()
Get the serialized length of a float sequence
|
XFloatSequence |
setFrom(long addr,
int offset,
int len)
Initialize a sequence by copying a float sequence serialized in a native memory region to a private backing store
|
XFloatSequence |
setFrom(com.neeve.quark.QuarkBuffer buffer,
int offset,
int len)
Initialize a sequence by copying a float sequence serialized in a
QuarkBuffer |
XFloatSequence |
setFrom(XFloatIterator iterator)
Initialize a sequence by copying a float sequence using a
XFloatIterator |
XFloatSequence |
setFrom(XFloatSequence sequence)
Initialize a sequence by copying a float sequence from a
XFloatSequence |
XFloatIterator |
toFirst()
Implementation of
XFloatIterator.toFirst() |
XFloatSequence |
wrap(long addr,
int offset,
int len)
Initialize a sequence by wrapping it around a float sequence serialized in a native memory region
|
XFloatSequence |
wrap(com.neeve.quark.QuarkBuffer buffer,
int offset,
int len)
Initialize a sequence by wrapping it around a float sequence serialized in a
QuarkBuffer |
public static final XFloatSequence create()
public final boolean isInitialized()
public final boolean isOwned()
public XFloatIterator toFirst()
XFloatIterator.toFirst()toFirst in interface XFloatIteratorIllegalStateException - Thrown if the sequence has not been initialized via a wrap() or setFrom methodpublic final boolean hasNext()
XFloatIterator.hasNext()hasNext in interface XFloatIteratorIllegalStateException - Thrown if the sequence has not been initialized via a wrap() or setFrom methodpublic final float next()
XFloatIterator.next()next in interface XFloatIteratorIllegalStateException - Thrown if the sequence has not been initialized via a wrap() or setFrom methodpublic final void remove()
XFloatIterator.remove()remove in interface XFloatIteratorpublic final XFloatSequence wrap(long addr, int offset, int len)
addr - The address of the memory region containing the serialized float sequenceoffset - The offset from the start of the memory region where the serialized sequence is storedlen - The length of the serialized float sequence
This method initializes a sequence's backing data pointers to a native memory region containing
the serialized float sequence. This method does not make a copy of the serialized sequence.
Therefore, the user must ensure that the source is not modified or freed as long as the sequence
is in active use or reset() is invoked.
This method can be invoked repeatedly with different backing stores. Each invocation resets all internal markers.
This method implictly invokes reset() as part of its processing
public final XFloatSequence wrap(com.neeve.quark.QuarkBuffer buffer, int offset, int len)
QuarkBufferbuffer - The buffer containing the serialized float sequenceoffset - The offset into the buffer where the serialized float sequence is storedlen - The length of the serialized float sequence
This method initializes a sequence's backing data pointers to the section of a QuarkBuffer
containing the serialized float sequence. This method does not make a copy of the serialized
sequence. Therefore, the user must ensure that the source is not modified or freed as long as the
sequence is in active use or reset() is invoked.
This method can be invoked repeatedly with different backing stores. Each invocation resets all internal markers.
This method implictly invokes reset() as part of its processing
public final XFloatSequence setFrom(long addr, int offset, int len)
addr - The address of the memory region containing the serialized float sequenceoffset - The offset from the start of the memory region where the serialized sequence is storedlen - The length of the serialized float sequence
This method initializes a sequence by copying a float sequence serialized in a native memory region
to a backing store that is private to the sequence object. Once done with using the sequence instance,
the user must invoke reset() to release the resources held by the backing store or release the
sequence object to the garbage collector in which case the backing store resources will be released
when the object is collected by the garbage collector.
This method can be invoked repeatedly with different backing stores. Each invocation invokes
reset() and performs a fresh initialization of the backing store.
public final XFloatSequence setFrom(com.neeve.quark.QuarkBuffer buffer, int offset, int len)
QuarkBufferbuffer - The buffer containing the serialized float sequenceoffset - The offset into the buffer where the serialized float sequence is storedlen - The length of the serialized float sequence
This method initializes a sequence by copying a float sequence serialized in a QuarkBuffer
to a backing store that is private to the sequence object. Once done with using the sequence instance,
the user must invoke reset() to release the resources held by the backing store or release the
sequence object to the garbage collector in which case the backing store resources will be released
when the object is collected by the garbage collector.
This method can be invoked repeatedly with different backing stores. Each invocation invokes
reset() and performs a fresh initialization of the backing store.
public final XFloatSequence setFrom(XFloatSequence sequence)
XFloatSequenceiterator - The source sequence
This method initializes a sequence by copying a float sequence from a XFloatSequence
to a backing store that is private to the sequence object. Once done with using the sequence instance,
the user must invoke reset() to release the resources held by the backing store or release
the sequence object to the garbage collector in which case the backing store resources will be released
when the object is collected by the garbage collector.
This method can be invoked repeatedly with different backing stores. Each invocation invokes
reset() and performs a fresh initialization of the backing store.
public final XFloatSequence setFrom(XFloatIterator iterator)
XFloatIteratoriterator - The iterator to use to access the sequence
This method initializes a sequence by copying a float sequence using a XFloatIterator
to a backing store that is private to the sequence object. Once done with using the sequence instance,
the user must invoke reset() to release the resources held by the backing store or release
the sequence object to the garbage collector in which case the backing store resources will be released
when the object is collected by the garbage collector.
This method can be invoked repeatedly with different backing stores. Each invocation invokes
reset() and performs a fresh initialization of the backing store.
public final int numElements()
IllegalStateException - Thrown if the sequence has not been initialized via a wrap() or setFrom methodpublic final int serializedLength()
IllegalStateException - Thrown if the sequence has not been initialized via a wrap() or setFrom methodpublic final int getTo(float[] val,
int offset)
val - The destination array object to copy tooffset - The offset into the destination array to copy toIllegalStateException - Thrown if the sequence has not been initialized via a wrap() or setFrom methodpublic final int getTo(byte[] val,
int offset)
val - The destination array object to copy tooffset - The offset into the destination array to copy toIllegalStateException - Thrown if the sequence has not been initialized via a wrap() or setFrom methodpublic final int getTo(long addr,
int offset)
addr - The destination memory region to copy tooffset - The offset into memory region to copy toIllegalStateException - Thrown if the sequence has not been initialized via a wrap() or setFrom methodpublic final int getTo(com.neeve.quark.QuarkBuffer val,
int offset)
QuarkBufferval - The destination buffer to copy tooffset - The offset into buffer to copy toIllegalStateException - Thrown if the sequence has not been initialized via a wrap() or setFrom methodpublic final XFloatIterator iterator()
IllegalStateException - Thrown if the sequence has not been initialized via a wrap() or setFrom methodpublic final XFloatSequence reset()
This method resets a float sequence. It releases all resources used by the sequence's private backing store
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