ucar.array

Class StructureDataStorageBB

java.lang.Object

ucar.array.StructureDataStorageBB

All Implemented Interfaces:

Iterable<StructureData>, Storage<StructureData>

public final class StructureDataStorageBB
extends Object
implements Storage<StructureData>

Storage for StructureDataArray with all data in a single ByteBuffer, using member's offsets and ByteOrder, and a heap for vlen data such as Strings, Vlens, and Sequences. The StructureData are manufactured on the fly, referencing the ByteBuffer and heap for data.

Constructor Summary

Constructors

Constructor and Description
StructureDataStorageBB(StructureMembers members, ByteBuffer bbuffer, int nelems)

Method Summary

Modifier and Type	Method and Description
void	arraycopy(int srcPos, Object dest, int destPos, long length) Copy all or a portion to dest array.
StructureData	get(long elem) Get the ith element.
int	getStructureSize() Get the total size of one Structure in bytes.
Iterator<StructureData>	iterator() Fast iterator over StructureData objects.
long	length() Number of elements.
int	putOnHeap(Object s) Put the object on the heap, return heap index.
void	setMemberData(int offset, StructureMembers.Member member, Array<?> data) Copy Array data into ByteBuffer at offset + member.getOffset().
StructureDataStorageBB	setStructuresOnHeap(boolean structuresOnHeap) If Structures are stored on the heap.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

StructureDataStorageBB

public StructureDataStorageBB(StructureMembers members,
                              ByteBuffer bbuffer,
                              int nelems)

Method Detail

setStructuresOnHeap

public StructureDataStorageBB setStructuresOnHeap(boolean structuresOnHeap)

If Structures are stored on the heap. Do not use until better tested.

putOnHeap

public int putOnHeap(Object s)

Put the object on the heap, return heap index.

length

public long length()

Description copied from interface: Storage

Number of elements.

Specified by:

length in interface Storage<StructureData>

get

public StructureData get(long elem)

Description copied from interface: Storage

Get the ith element.

Specified by:

get in interface Storage<StructureData>

arraycopy

public void arraycopy(int srcPos,
                      Object dest,
                      int destPos,
                      long length)

Description copied from interface: Storage

Copy all or a portion to dest array. Mimic of System.arraycopy(Object src, int srcPos, Object dest, int destPos, int length);

Specified by:

arraycopy in interface Storage<StructureData>

Parameters:

srcPos - starting pos in this source.

dest - destination primitive array of type T.

destPos - starting pos in destination.

length - copy these number of elements.

getStructureSize

public int getStructureSize()

Get the total size of one Structure in bytes.

setMemberData

public void setMemberData(int offset,
                          StructureMembers.Member member,
                          Array<?> data)

Copy Array data into ByteBuffer at offset + member.getOffset().

iterator

public Iterator<StructureData> iterator()

Fast iterator over StructureData objects.

Specified by:

iterator in interface Iterable<StructureData>