com.devexperts.qd.ng

Class RecordCursor.Owner

java.lang.Object

com.devexperts.qd.ng.RecordCursor.Owner

Enclosing class:

RecordCursor

public final class RecordCursor.Owner
extends Object

RecordCursor contains an implicit reference to RecordCursor. It is used to configure the cursor via setRecord(com.devexperts.qd.DataRecord), setSymbol(int, java.lang.String), and setReadOnly(boolean) methods and to reset it via reset method. Users of the RecordCursor itself cannot change the data this cursor points to.

Method Summary

Modifier and Type	Method and Description
RecordCursor	cursor() Returns owned RecordCursor.
void	reset() Resets cursor to its initial state.
void	setArrays(int[] intFlds, Object[] objFlds) Changes pointer to data integer and object array.
void	setAs(RecordCursor other) Configures the cursor to be exactly as the other cursor.
void	setAttachment(Object attachment) Changes object attachment that is associated with the current cursor when attachment is not part of the record mode.
void	setEventFlags(int eventFlags) Changes event flags that are associated with the current cursor when event flags are not part of the record mode.
void	setOffsets(int intOffset, int objOffset) Changes offsets in data integer and data object arrays.
void	setReadOnly(boolean read_only) Changes read only mode of the corresponding cursor.
void	setRecord(DataRecord record) Changes record and sets a default mode of DATA.
void	setRecord(DataRecord record, RecordMode mode) Changes record and sets a specified mode.
void	setSymbol(int cipher, String symbol) Changes cipher and symbol.
void	setTimeMark(int timeMark) Changes time mark that is associated with the current cursor when time mark is not part of the record mode.

Methods inherited from class java.lang.Object

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

Method Detail

cursor

public RecordCursor cursor()

Returns owned RecordCursor.

setReadOnly

public void setReadOnly(boolean read_only)

Changes read only mode of the corresponding cursor.

Parameters:

read_only - read only mode.

setRecord

public void setRecord(DataRecord record)

Changes record and sets a default mode of DATA.

Parameters:

record - the record.

setRecord

public void setRecord(DataRecord record,
                      RecordMode mode)

Changes record and sets a specified mode.

Parameters:

record - the record.

mode - the mode.

setSymbol

public void setSymbol(int cipher,
                      String symbol)

Changes cipher and symbol.

Parameters:

cipher - the cipher.

symbol - the symbol.

setArrays

public void setArrays(int[] intFlds,
                      Object[] objFlds)

Changes pointer to data integer and object array.

Parameters:

intFlds - data integer array.

objFlds - data object array.

setOffsets

public void setOffsets(int intOffset,
                       int objOffset)

Changes offsets in data integer and data object arrays.

Parameters:

intOffset - integer data offset.

objOffset - object data offset.

setAs

public void setAs(RecordCursor other)

Configures the cursor to be exactly as the other cursor. The cursor will point to the same backing arrays as the other cursor. All properties are copied, including readOnly, record, mode, etc. As a result, eventFlags, timeMark, or attachment can be changed in the cursor without actually copying any data even if the original cursor was readOnly.

Parameters:

other - the other cursor.

reset

public void reset()

Resets cursor to its initial state. Internal state is completely cleared with the exception of mode, which retains its value.

setEventFlags

public void setEventFlags(int eventFlags)

Changes event flags that are associated with the current cursor when event flags are not part of the record mode. This method has no effect when mode has its own event flags.

setTimeMark

public void setTimeMark(int timeMark)

Changes time mark that is associated with the current cursor when time mark is not part of the record mode. This method has no effect when mode has its own time mark.

See Also:

TimeMarkUtil

setAttachment

public void setAttachment(Object attachment)

Changes object attachment that is associated with the current cursor when attachment is not part of the record mode. This method has no effect when mode has its own attachment.