dap4.dap4lib.netcdf

Class Nc4Cursor

java.lang.Object

dap4.dap4lib.AbstractCursor

dap4.dap4lib.netcdf.Nc4Cursor

All Implemented Interfaces:

DataCursor

public class Nc4Cursor
extends AbstractCursor

Nested Class Summary

Nested classes/interfaces inherited from interface dap4.core.data.DataCursor

DataCursor.Scheme

Field Summary

Fields

Modifier and Type	Field and Description
static boolean	DEBUG
protected Nc4DSP.Nc4Pointer	memory

Fields inherited from class dap4.dap4lib.AbstractCursor

arrayindex, container, dsp, recordcount, recordindex, scheme, template

Constructor Summary

Constructors

Constructor and Description
Nc4Cursor(DataCursor.Scheme scheme, Nc4DSP dsp, DapVariable template, Nc4Cursor container)
Nc4Cursor(Nc4Cursor c)

Method Summary

Modifier and Type	Method and Description
protected void	debug()
static void	errcheck(DapNetcdf nc4, int ret)
protected java.lang.Object	getatomicdata(DapType basetype, long lcount, long elemsize, Nc4DSP.Nc4Pointer mem)
long	getElementSize()
protected long	getElementSize(Nc4Notes.TypeNotes ti)
Index	getIndex()
Nc4DSP.Nc4Pointer	getMemory()
long	getOffset()
long	getRecordCount()
Nc4Notes.TypeNotes	getVlenType(DapVariable v) If the basetype is sequence (=> isVlen()), then return the type of the first field of this sequence.
java.lang.Object	read(Index index)
java.lang.Object	read(java.util.List<Slice> slices)
protected java.lang.Object	readAtomic(java.util.List<Slice> slices)
protected java.lang.Object	readAtomicScalar(Nc4Notes.VarNotes vi, Nc4Notes.TypeNotes ti) Read a top-level scalar atomic variable
protected java.lang.Object	readAtomicVector(Nc4Notes.VarNotes vi, Nc4Notes.TypeNotes ti, long count, java.util.List<Slice> slices)
static void	readcheck(DapNetcdf nc4, int ret)
Nc4Cursor	readField(int findex)
Nc4Cursor	readRecord(long recno)
protected Nc4Cursor	readSequence(Index index)
protected Nc4Cursor	readStructure(Index index)
Nc4Cursor	setMemory(Nc4DSP.Nc4Pointer p)

Methods inherited from class dap4.dap4lib.AbstractCursor

fieldIndex, getContainer, getDSP, getRecordIndex, getScheme, getTemplate, isAtomic, isCompound, isCompoundArray, isField, isScalar, schemeFor, setContainer, setDSP, setIndex, setRecordCount, setRecordIndex, setScheme, setTemplate, toString

Methods inherited from class java.lang.Object

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

Field Detail

DEBUG

public static boolean DEBUG

memory

protected Nc4DSP.Nc4Pointer memory

Constructor Detail

Nc4Cursor

public Nc4Cursor(DataCursor.Scheme scheme,
                 Nc4DSP dsp,
                 DapVariable template,
                 Nc4Cursor container)
          throws DapException

Throws:

DapException

Nc4Cursor

public Nc4Cursor(Nc4Cursor c)

Method Detail

read

public java.lang.Object read(Index index)
                      throws DapException

Specified by:

read in interface DataCursor

Specified by:

read in class AbstractCursor

Throws:

DapException

read

public java.lang.Object read(java.util.List<Slice> slices)
                      throws DapException

Specified by:

read in interface DataCursor

Specified by:

read in class AbstractCursor

Throws:

DapException

readField

public Nc4Cursor readField(int findex)
                    throws DapException

Specified by:

readField in interface DataCursor

Specified by:

readField in class AbstractCursor

Throws:

DapException

getRecordCount

public long getRecordCount()

Specified by:

getRecordCount in interface DataCursor

Overrides:

getRecordCount in class AbstractCursor

readRecord

public Nc4Cursor readRecord(long recno)
                     throws DapException

Specified by:

readRecord in interface DataCursor

Specified by:

readRecord in class AbstractCursor

Throws:

DapException

getIndex

public Index getIndex()
               throws DapException

Specified by:

getIndex in interface DataCursor

Overrides:

getIndex in class AbstractCursor

Throws:

DapException

readAtomic

protected java.lang.Object readAtomic(java.util.List<Slice> slices)
                               throws DapException

Throws:

DapException

readAtomicScalar

protected java.lang.Object readAtomicScalar(Nc4Notes.VarNotes vi,
                                            Nc4Notes.TypeNotes ti)
                                     throws DapException

Read a top-level scalar atomic variable

Parameters:

vi -

ti -

Returns:

Throws:

DapException

readAtomicVector

protected java.lang.Object readAtomicVector(Nc4Notes.VarNotes vi,
                                            Nc4Notes.TypeNotes ti,
                                            long count,
                                            java.util.List<Slice> slices)
                                     throws DapException

Throws:

DapException

readStructure

protected Nc4Cursor readStructure(Index index)
                           throws DapException

Throws:

DapException

readSequence

protected Nc4Cursor readSequence(Index index)
                          throws DapException

Throws:

DapException

getOffset

public long getOffset()

getElementSize

public long getElementSize()

getMemory

public Nc4DSP.Nc4Pointer getMemory()

setMemory

public Nc4Cursor setMemory(Nc4DSP.Nc4Pointer p)

getElementSize

protected long getElementSize(Nc4Notes.TypeNotes ti)

getatomicdata

protected java.lang.Object getatomicdata(DapType basetype,
                                         long lcount,
                                         long elemsize,
                                         Nc4DSP.Nc4Pointer mem)

errcheck

public static void errcheck(DapNetcdf nc4,
                            int ret)
                     throws DapException

Throws:

DapException

readcheck

public static void readcheck(DapNetcdf nc4,
                             int ret)
                      throws DapException

Throws:

DapException

getVlenType

public Nc4Notes.TypeNotes getVlenType(DapVariable v)

If the basetype is sequence (=> isVlen()), then return the type of the first field of this sequence. Otherwise return null.

Returns:

the type of the first field

debug

protected void debug()