Package dap4.dap4lib.serial

Class D4Cursor

java.lang.Object

dap4.dap4lib.AbstractCursor

dap4.dap4lib.serial.D4Cursor

All Implemented Interfaces:

dap4.core.data.DataCursor

public class D4Cursor
extends AbstractCursor

Nested Class Summary

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

dap4.core.data.DataCursor.Scheme

Field Summary

Fields

Modifier and Type	Field	Description
protected long[]	bytestrings
protected D4Cursor[]	elements
protected D4Cursor[]	fieldcursors
protected long	offset
protected List<D4Cursor>	records

Fields inherited from class dap4.dap4lib.AbstractCursor

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

Constructor Summary

Constructors

Constructor	Description
D4Cursor(dap4.core.data.DataCursor.Scheme scheme, D4DSP dsp, dap4.core.dmr.DapNode template, D4Cursor container)
D4Cursor(D4Cursor c)	Effectively a clone of c

Method Summary

Modifier and Type	Method	Description
D4Cursor	addField(int m, D4Cursor field)
D4Cursor	addRecord(D4Cursor rec)
long	getElementSize(dap4.core.dmr.DapVariable v)
static long	getLength(ByteBuffer b)
long	getRecordCount()
Object	read(dap4.core.util.Index index)
Object	read(List<dap4.core.util.Slice> slices)
protected Object	readAs(dap4.core.dmr.DapVariable atomvar, dap4.core.dmr.DapType basetype, List<dap4.core.util.Slice> slices)	Allow specification of basetype to use; used for enumerations
protected Object	readAtomic(List<dap4.core.util.Slice> slices)
protected void	readContig(List<dap4.core.util.Slice> slices, dap4.core.dmr.DapType basetype, long count, dap4.core.util.Odometer odom, Object result)
D4Cursor	readField(int findex)
protected Object	readOdom(List<dap4.core.util.Slice> slices, dap4.core.dmr.DapType basetype, dap4.core.util.Odometer odom, Object result)
D4Cursor	readRecord(long i)
D4Cursor	readSequence(dap4.core.util.Index index)
protected D4Cursor	readStructure(dap4.core.util.Index index)
D4Cursor	setByteStringOffsets(long total, long[] positions)
D4Cursor	setElements(D4Cursor[] instances)
D4Cursor	setOffset(long pos)

Methods inherited from class dap4.dap4lib.AbstractCursor

fieldIndex, getContainer, getDSP, getIndex, 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

offset

protected long offset

bytestrings

protected long[] bytestrings

elements

protected D4Cursor[] elements

fieldcursors

protected D4Cursor[] fieldcursors

records

protected List<D4Cursor> records

Constructor Detail

D4Cursor

public D4Cursor(dap4.core.data.DataCursor.Scheme scheme,
                D4DSP dsp,
                dap4.core.dmr.DapNode template,
                D4Cursor container)

D4Cursor

public D4Cursor(D4Cursor c)

Effectively a clone of c

Parameters:

c - cursor to clone

Method Detail

read

public Object read(dap4.core.util.Index index)
            throws dap4.core.util.DapException

Specified by:

read in interface dap4.core.data.DataCursor

Specified by:

read in class AbstractCursor

Throws:

dap4.core.util.DapException

read

public Object read(List<dap4.core.util.Slice> slices)
            throws dap4.core.util.DapException

Specified by:

read in interface dap4.core.data.DataCursor

Specified by:

read in class AbstractCursor

Throws:

dap4.core.util.DapException

readField

public D4Cursor readField(int findex)
                   throws dap4.core.util.DapException

Specified by:

readField in interface dap4.core.data.DataCursor

Specified by:

readField in class AbstractCursor

Throws:

dap4.core.util.DapException

readRecord

public D4Cursor readRecord(long i)

Specified by:

readRecord in interface dap4.core.data.DataCursor

Specified by:

readRecord in class AbstractCursor

getRecordCount

public long getRecordCount()

Specified by:

getRecordCount in interface dap4.core.data.DataCursor

Overrides:

getRecordCount in class AbstractCursor

readAtomic

protected Object readAtomic(List<dap4.core.util.Slice> slices)
                     throws dap4.core.util.DapException

Throws:

dap4.core.util.DapException

readAs

protected Object readAs(dap4.core.dmr.DapVariable atomvar,
                        dap4.core.dmr.DapType basetype,
                        List<dap4.core.util.Slice> slices)
                 throws dap4.core.util.DapException

Allow specification of basetype to use; used for enumerations

Parameters:

atomvar -

basetype -

slices -

Returns:

Object of basetype

Throws:

dap4.core.util.DapException

readContig

protected void readContig(List<dap4.core.util.Slice> slices,
                          dap4.core.dmr.DapType basetype,
                          long count,
                          dap4.core.util.Odometer odom,
                          Object result)
                   throws dap4.core.util.DapException

Throws:

dap4.core.util.DapException

readOdom

protected Object readOdom(List<dap4.core.util.Slice> slices,
                          dap4.core.dmr.DapType basetype,
                          dap4.core.util.Odometer odom,
                          Object result)
                   throws dap4.core.util.DapException

Throws:

dap4.core.util.DapException

readStructure

protected D4Cursor readStructure(dap4.core.util.Index index)
                          throws dap4.core.util.DapException

Throws:

dap4.core.util.DapException

readSequence

public D4Cursor readSequence(dap4.core.util.Index index)
                      throws dap4.core.util.DapException

Throws:

dap4.core.util.DapException

setElements

public D4Cursor setElements(D4Cursor[] instances)

setOffset

public D4Cursor setOffset(long pos)

setByteStringOffsets

public D4Cursor setByteStringOffsets(long total,
                                     long[] positions)

addField

public D4Cursor addField(int m,
                         D4Cursor field)

addRecord

public D4Cursor addRecord(D4Cursor rec)

getElementSize

public long getElementSize(dap4.core.dmr.DapVariable v)

getLength

public static long getLength(ByteBuffer b)