程序包 org.meteoinfo.ndarray

类 ArrayStructureBB

java.lang.Object

org.meteoinfo.ndarray.Array

org.meteoinfo.ndarray.ArrayStructureBak

org.meteoinfo.ndarray.ArrayStructureBB

直接已知子类:

ArrayStructureBBpos, ArrayStructureBBsection

public class ArrayStructureBB
extends ArrayStructureBak

Concrete implementation of ArrayStructure, data storage is in a ByteBuffer, which is converted to member data on the fly. In order to use this, the records must have the same size, and the member offset must be the same for each record. Use StructureMembers.setStructureSize() to set the record size. Use StructureMembers.Member.setDataParam() to set the offset of the member from the start of each record. The member data will then be located in the BB at offset = recnum * getStructureSize() + member.getDataParam(). This defers object creation for efficiency. Use getArray() and getScalar() data accessors if possible.

     Structure pdata = (Structure) ncfile.findVariable( name);
     StructureMembers members = pdata.makeStructureMembers();
     members.findMember("value").setDataParam(0); // these are the offsets into the record
     members.findMember("x_start").setDataParam(2);
     members.findMember("y_start").setDataParam(4);
     members.findMember("direction").setDataParam(6);
     members.findMember("speed").setDataParam(8);
     int recsize = pos[1] - pos[0]; // each record  must be all the same size
     members.setStructureSize( recsize);
     ArrayStructureBB asbb = new ArrayStructureBB( members, new int[] { size}, bos, pos[0]);
 

For String members, you must store the Strings in the stringHeap. An integer index into the heap is used in the ByteBuffer.

作者:

caron

另请参阅:

Array

嵌套类概要

从类继承的嵌套类/接口 org.meteoinfo.ndarray.ArrayStructureBak

ArrayStructureBak.ArrayStructureIterator

字段概要

字段

限定符和类型	字段	说明
protected int	bb_offset
protected ByteBuffer	bbuffer

从类继承的字段 org.meteoinfo.ndarray.Array

datatype, indexCalc, rank, unsigned

从类继承的字段 org.meteoinfo.ndarray.ArrayStructureBak

members, nelems, sdata

构造器概要

构造器

构造器	说明
ArrayStructureBB(StructureMembers members, int[] shape)	Create a new Array of type StructureData and the given members and shape.
ArrayStructureBB(StructureMembers members, int[] shape, ByteBuffer bbuffer, int offset)	Construct an ArrayStructureBB with the given ByteBuffer.

方法概要

限定符和类型	方法	说明
void	addObjectToHeap(int recnum, StructureMembers.Member m, Object s)
int	addObjectToHeap(Object s)
protected int	calcOffsetSetOrder(int recnum, StructureMembers.Member m)
protected void	copyBytes(int recnum, StructureMembers.Member m, IndexIterator result)
protected void	copyChars(int recnum, StructureMembers.Member m, IndexIterator result)
protected void	copyDoubles(int recnum, StructureMembers.Member m, IndexIterator result)
protected void	copyFloats(int recnum, StructureMembers.Member m, IndexIterator result)
protected void	copyInts(int recnum, StructureMembers.Member m, IndexIterator result)
protected void	copyLongs(int recnum, StructureMembers.Member m, IndexIterator result)
protected void	copyObjects(int recnum, StructureMembers.Member m, IndexIterator result)
protected void	copyShorts(int recnum, StructureMembers.Member m, IndexIterator result)
Array	getArray(int recnum, StructureMembers.Member m)	Get member data of any type for a specific record as an Array.
ArraySequence	getArraySequence(int recnum, StructureMembers.Member m)	Get member data of type ArraySequence
ArrayStructureBak	getArrayStructure(int recnum, StructureMembers.Member m)	Get member data of type array of Structure.
ByteBuffer	getByteBuffer()	Return backing storage as a ByteBuffer
List<Object>	getHeap()	DO NOT MODIFY
byte[]	getJavaArrayByte(int recnum, StructureMembers.Member m)	Get member data of type byte as a 1D array.
char[]	getJavaArrayChar(int recnum, StructureMembers.Member m)	Get member data of type char as a 1D array.
double[]	getJavaArrayDouble(int recnum, StructureMembers.Member m)	Get member data of type double as a 1D array.
float[]	getJavaArrayFloat(int recnum, StructureMembers.Member m)	Get member data of type float as a 1D array.
int[]	getJavaArrayInt(int recnum, StructureMembers.Member m)	Get member data of type int as a 1D array.
long[]	getJavaArrayLong(int recnum, StructureMembers.Member m)	Get member data of type long as a 1D array.
short[]	getJavaArrayShort(int recnum, StructureMembers.Member m)	Get member data of type short as a 1D array.
String[]	getJavaArrayString(int recnum, StructureMembers.Member m)	Get member data of type String as a 1D array.
byte	getScalarByte(int recnum, StructureMembers.Member m)	Get scalar member data of type byte.
char	getScalarChar(int recnum, StructureMembers.Member m)	Get scalar member data of type char.
double	getScalarDouble(int recnum, StructureMembers.Member m)	Get scalar member data of type double.
float	getScalarFloat(int recnum, StructureMembers.Member m)	Get scalar member data of type float.
int	getScalarInt(int recnum, StructureMembers.Member m)	Get scalar member data of type int.
long	getScalarLong(int recnum, StructureMembers.Member m)	Get scalar member data of type long.
short	getScalarShort(int recnum, StructureMembers.Member m)	Get scalar member data of type short.
String	getScalarString(int recnum, StructureMembers.Member m)	Get member data of type String or char.
StructureData	getScalarStructure(int recnum, StructureMembers.Member m)	Get member data of type Structure.
static void	main(String[] argv)
protected StructureData	makeStructureData(ArrayStructureBak as, int index)
static int	setOffsets(StructureMembers members)	Set the offsets, based on m.getSizeBytes().
void	showInternal(Formatter f, Indent indent)
static int	showOffsets(StructureMembers members, Indent indent, Formatter f)

从类继承的方法 org.meteoinfo.ndarray.Array

arraycopy, copyTo1DJavaArray, copyToNDJavaArray, factory, factory, factory, factory, factory, factory, factoryConstant, flip, get1DJavaArray, getDataAsByteBuffer, getDataAsByteBuffer, getDataAsByteBuffer, getDataType, getIndex, getIndexIterator, getIndexIteratorFast, getIndexPrivate, getRangeIterator, getRank, getShape, getSize, hasNext, isConstant, isUnsigned, makeArray, makeArray, makeArray, makeArray, makeArrayRankPlusOne, next, nextBoolean, nextByte, nextChar, nextDouble, nextFloat, nextInt, nextLong, nextShort, permute, reduce, reduce, resetLocalIterator, reshape, reshapeNoCopy, reshapeVLen, section, section, section, sectionNoReduce, setUnsigned, shapeToString, slice, toString, transpose

从类继承的方法 org.meteoinfo.ndarray.ArrayStructureBak

convertScalarDouble, convertScalarFloat, convertScalarInt, convertScalarLong, copy, copyFrom1DJavaArray, copySequences, copyStructures, copyTo1DJavaArray, createView, extractMemberArray, findMember, getArrayObject, getBoolean, getBoolean, getByte, getByte, getChar, getChar, getComplex, getComplex, getDouble, getDouble, getElementType, getFloat, getFloat, getInt, getInt, getLong, getLong, getMembers, getObject, getObject, getScalarObject, getShort, getShort, getSizeBytes, getStorage, getString, getString, getStructureData, getStructureData, getStructureDataIterator, getStructureMemberNames, getStructureMembers, getStructureSize, sectionNoReduce, setBoolean, setBoolean, setByte, setByte, setChar, setChar, setComplex, setComplex, setDouble, setDouble, setFloat, setFloat, setInt, setInt, setLong, setLong, setMemberArray, setObject, setObject, setShort, setShort, setString, setString, showInternalMembers

从类继承的方法 java.lang.Object

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

字段详细资料

bbuffer

protected ByteBuffer bbuffer

bb_offset

protected int bb_offset

构造器详细资料

ArrayStructureBB

public ArrayStructureBB(StructureMembers members,
                        int[] shape)

Create a new Array of type StructureData and the given members and shape. Generally, you extract the byte array and fill it:

     byte [] result = (byte []) structureArray.getStorage(); 

参数:

members - a description of the structure members

shape - the shape of the Array.

ArrayStructureBB

public ArrayStructureBB(StructureMembers members,
                        int[] shape,
                        ByteBuffer bbuffer,
                        int offset)

Construct an ArrayStructureBB with the given ByteBuffer.

参数:

members - the list of structure members.

shape - the shape of the structure array

bbuffer - the data is stored in this ByteBuffer. bbuffer.order must already be set.

offset - offset from the start of the ByteBufffer to the first record.

方法详细资料

setOffsets

public static int setOffsets(StructureMembers members)

Set the offsets, based on m.getSizeBytes(). Also sets members.setStructureSize().

参数:

members - set offsets for these members

返回:

the total size

showOffsets

public static int showOffsets(StructureMembers members,
                              Indent indent,
                              Formatter f)

makeStructureData

protected StructureData makeStructureData(ArrayStructureBak as,
                                          int index)

指定者:

makeStructureData 在类中 ArrayStructureBak

getByteBuffer

public ByteBuffer getByteBuffer()

Return backing storage as a ByteBuffer

返回:

backing storage as a ByteBuffer

getScalarDouble

public double getScalarDouble(int recnum,
                              StructureMembers.Member m)

从类复制的说明: ArrayStructureBak

Get scalar member data of type double.

覆盖:

getScalarDouble 在类中 ArrayStructureBak

参数:

recnum - get data from the recnum-th StructureData of the ArrayStructure. Must be less than getSize();

m - get data from this StructureMembers.Member. Must be of type double.

返回:

scalar double value

getJavaArrayDouble

public double[] getJavaArrayDouble(int recnum,
                                   StructureMembers.Member m)

从类复制的说明: ArrayStructureBak

Get member data of type double as a 1D array. The member data may be any rank.

覆盖:

getJavaArrayDouble 在类中 ArrayStructureBak

参数:

recnum - get data from the recnum-th StructureData of the ArrayStructure. Must be less than getSize();

m - get data from this StructureMembers.Member. Must be of type double.

返回:

double[]

copyDoubles

protected void copyDoubles(int recnum,
                           StructureMembers.Member m,
                           IndexIterator result)

覆盖:

copyDoubles 在类中 ArrayStructureBak

getScalarFloat

public float getScalarFloat(int recnum,
                            StructureMembers.Member m)

从类复制的说明: ArrayStructureBak

Get scalar member data of type float.

覆盖:

getScalarFloat 在类中 ArrayStructureBak

参数:

recnum - get data from the recnum-th StructureData of the ArrayStructure. Must be less than getSize();

m - get data from this StructureMembers.Member. Must be of type float.

返回:

scalar double value

getArray

public Array getArray(int recnum,
                      StructureMembers.Member m)

从类复制的说明: ArrayStructureBak

Get member data of any type for a specific record as an Array. This may avoid the overhead of creating the StructureData object, but is equivilent to getStructure(recno).getArray( Member m).

覆盖:

getArray 在类中 ArrayStructureBak

参数:

recnum - get data from the recnum-th StructureData of the ArrayStructure. Must be less than getSize();

m - get data from this StructureMembers.Member.

返回:

Array values.

getJavaArrayFloat

public float[] getJavaArrayFloat(int recnum,
                                 StructureMembers.Member m)

从类复制的说明: ArrayStructureBak

Get member data of type float as a 1D array.

覆盖:

getJavaArrayFloat 在类中 ArrayStructureBak

参数:

recnum - get data from the recnum-th StructureData of the ArrayStructure. Must be less than getSize();

m - get data from this StructureMembers.Member. Must be of type float.

返回:

float[]

copyFloats

protected void copyFloats(int recnum,
                          StructureMembers.Member m,
                          IndexIterator result)

覆盖:

copyFloats 在类中 ArrayStructureBak

getScalarByte

public byte getScalarByte(int recnum,
                          StructureMembers.Member m)

从类复制的说明: ArrayStructureBak

Get scalar member data of type byte.

覆盖:

getScalarByte 在类中 ArrayStructureBak

参数:

recnum - get data from the recnum-th StructureData of the ArrayStructure. Must be less than getSize();

m - get data from this StructureMembers.Member. Must be of type byte.

返回:

scalar double value

getJavaArrayByte

public byte[] getJavaArrayByte(int recnum,
                               StructureMembers.Member m)

从类复制的说明: ArrayStructureBak

Get member data of type byte as a 1D array.

覆盖:

getJavaArrayByte 在类中 ArrayStructureBak

参数:

recnum - get data from the recnum-th StructureData of the ArrayStructure. Must be less than getSize();

m - get data from this StructureMembers.Member. Must be of type byte.

返回:

byte[]

copyBytes

protected void copyBytes(int recnum,
                         StructureMembers.Member m,
                         IndexIterator result)

覆盖:

copyBytes 在类中 ArrayStructureBak

getScalarShort

public short getScalarShort(int recnum,
                            StructureMembers.Member m)

从类复制的说明: ArrayStructureBak

Get scalar member data of type short.

覆盖:

getScalarShort 在类中 ArrayStructureBak

参数:

recnum - get data from the recnum-th StructureData of the ArrayStructure. Must be less than getSize();

m - get data from this StructureMembers.Member. Must be of type short.

返回:

scalar double value

getJavaArrayShort

public short[] getJavaArrayShort(int recnum,
                                 StructureMembers.Member m)

从类复制的说明: ArrayStructureBak

Get member data of type short as a 1D array.

覆盖:

getJavaArrayShort 在类中 ArrayStructureBak

参数:

recnum - get data from the recnum-th StructureData of the ArrayStructure. Must be less than getSize();

m - get data from this StructureMembers.Member. Must be of type float.

返回:

short[]

copyShorts

protected void copyShorts(int recnum,
                          StructureMembers.Member m,
                          IndexIterator result)

覆盖:

copyShorts 在类中 ArrayStructureBak

getScalarInt

public int getScalarInt(int recnum,
                        StructureMembers.Member m)

从类复制的说明: ArrayStructureBak

Get scalar member data of type int.

覆盖:

getScalarInt 在类中 ArrayStructureBak

参数:

recnum - get data from the recnum-th StructureData of the ArrayStructure. Must be less than getSize();

m - get data from this StructureMembers.Member. Must be of type int.

返回:

scalar double value

getJavaArrayInt

public int[] getJavaArrayInt(int recnum,
                             StructureMembers.Member m)

从类复制的说明: ArrayStructureBak

Get member data of type int as a 1D array.

覆盖:

getJavaArrayInt 在类中 ArrayStructureBak

参数:

recnum - get data from the recnum-th StructureData of the ArrayStructure. Must be less than getSize();

m - get data from this StructureMembers.Member. Must be of type int.

返回:

int[]

copyInts

protected void copyInts(int recnum,
                        StructureMembers.Member m,
                        IndexIterator result)

覆盖:

copyInts 在类中 ArrayStructureBak

getScalarLong

public long getScalarLong(int recnum,
                          StructureMembers.Member m)

从类复制的说明: ArrayStructureBak

Get scalar member data of type long.

覆盖:

getScalarLong 在类中 ArrayStructureBak

参数:

recnum - get data from the recnum-th StructureData of the ArrayStructure. Must be less than getSize();

m - get data from this StructureMembers.Member. Must be of type long.

返回:

scalar double value

getJavaArrayLong

public long[] getJavaArrayLong(int recnum,
                               StructureMembers.Member m)

从类复制的说明: ArrayStructureBak

Get member data of type long as a 1D array.

覆盖:

getJavaArrayLong 在类中 ArrayStructureBak

参数:

recnum - get data from the recnum-th StructureData of the ArrayStructure. Must be less than getSize();

m - get data from this StructureMembers.Member. Must be of type long.

返回:

long[]

copyLongs

protected void copyLongs(int recnum,
                         StructureMembers.Member m,
                         IndexIterator result)

覆盖:

copyLongs 在类中 ArrayStructureBak

getScalarChar

public char getScalarChar(int recnum,
                          StructureMembers.Member m)

从类复制的说明: ArrayStructureBak

Get scalar member data of type char.

覆盖:

getScalarChar 在类中 ArrayStructureBak

参数:

recnum - get data from the recnum-th StructureData of the ArrayStructure. Must be less than getSize();

m - get data from this StructureMembers.Member. Must be of type char.

返回:

scalar double value

getJavaArrayChar

public char[] getJavaArrayChar(int recnum,
                               StructureMembers.Member m)

从类复制的说明: ArrayStructureBak

Get member data of type char as a 1D array.

覆盖:

getJavaArrayChar 在类中 ArrayStructureBak

参数:

recnum - get data from the recnum-th StructureData of the ArrayStructure. Must be less than getSize();

m - get data from this StructureMembers.Member. Must be of type char.

返回:

char[]

copyChars

protected void copyChars(int recnum,
                         StructureMembers.Member m,
                         IndexIterator result)

覆盖:

copyChars 在类中 ArrayStructureBak

getScalarString

public String getScalarString(int recnum,
                              StructureMembers.Member m)

从类复制的说明: ArrayStructureBak

Get member data of type String or char.

覆盖:

getScalarString 在类中 ArrayStructureBak

参数:

recnum - get data from the recnum-th StructureData of the ArrayStructure. Must be less than getSize();

m - get data from this StructureMembers.Member. Must be of type String or char.

返回:

scalar String value

getJavaArrayString

public String[] getJavaArrayString(int recnum,
                                   StructureMembers.Member m)

从类复制的说明: ArrayStructureBak

Get member data of type String as a 1D array.

覆盖:

getJavaArrayString 在类中 ArrayStructureBak

参数:

recnum - get data from the recnum-th StructureData of the ArrayStructure. Must be less than getSize();

m - get data from this StructureMembers.Member. Must be of type String.

返回:

String[]

copyObjects

protected void copyObjects(int recnum,
                           StructureMembers.Member m,
                           IndexIterator result)

覆盖:

copyObjects 在类中 ArrayStructureBak

getScalarStructure

public StructureData getScalarStructure(int recnum,
                                        StructureMembers.Member m)

从类复制的说明: ArrayStructureBak

Get member data of type Structure.

覆盖:

getScalarStructure 在类中 ArrayStructureBak

参数:

recnum - get data from the recnum-th StructureData of the ArrayStructure. Must be less than getSize();

m - get data from this StructureMembers.Member. Must be of type Structure.

返回:

scalar StructureData

getArrayStructure

public ArrayStructureBak getArrayStructure(int recnum,
                                           StructureMembers.Member m)

从类复制的说明: ArrayStructureBak

Get member data of type array of Structure.

覆盖:

getArrayStructure 在类中 ArrayStructureBak

参数:

recnum - get data from the recnum-th StructureData of the ArrayStructure. Must be less than getSize();

m - get data from this StructureMembers.Member. Must be of type Structure.

返回:

nested ArrayStructure.

getArraySequence

public ArraySequence getArraySequence(int recnum,
                                      StructureMembers.Member m)

从类复制的说明: ArrayStructureBak

Get member data of type ArraySequence

覆盖:

getArraySequence 在类中 ArrayStructureBak

参数:

recnum - get data from the recnum-th StructureData of the ArrayStructure. Must be less than getSize();

m - get data from this StructureMembers.Member. Must be of type Structure.

返回:

nested ArrayStructure.

calcOffsetSetOrder

protected int calcOffsetSetOrder(int recnum,
                                 StructureMembers.Member m)

addObjectToHeap

public int addObjectToHeap(Object s)

addObjectToHeap

public void addObjectToHeap(int recnum,
                            StructureMembers.Member m,
                            Object s)

getHeap

public List<Object> getHeap()

DO NOT MODIFY

返回:

heap

showInternal

public void showInternal(Formatter f,
                         Indent indent)

覆盖:

showInternal 在类中 ArrayStructureBak

main

public static void main(String[] argv)