IDecodeListener Class Reference

Public Member Functions
virtual	~IDecodeListener () ONIXS_FIXENGINE_DEFAULT
Entire message events
These events belong to the entire message. Each one from the group occurs a single time per a message.
virtual void	onBeginMessage (unsigned templateId, const char *messageType, size_t messageTypeLength)=0
virtual void	onEndMessage ()=0
Data field events
These events denotes that particular fields were decoded. Events occurs once per a field.
virtual void	onValue (int tag, char value)=0
virtual void	onValue (int tag, short value)=0
virtual void	onValue (int tag, unsigned short value)=0
virtual void	onValue (int tag, int value)=0
virtual void	onValue (int tag, unsigned value)=0
virtual void	onValue (int tag, long long value)=0
virtual void	onValue (int tag, unsigned long long value)=0
virtual void	onValue (int tag, long long mantissa, int exponent)=0
virtual void	onValue (int tag, const char *value, size_t valueLength)=0
virtual void	onValue (int tag, float value)=0
virtual void	onValue (int tag, double value)=0
Sequence events
These callbacks embraces the sequence decoding. Each callback called once per a sequence unless the sequence is empty.
virtual void	onBeginSequence (int tag, size_t itemCount)=0
virtual void	onEndSequence ()=0
Sequence entry events
These callbacks embraces the sequence entry decoding. Each callback called once per a sequence entry.
virtual void	onBeginSequenceEntry (size_t index)=0
virtual void	onEndSequenceEntry ()=0

Detailed Description

This interface declares set of methods called by the EventBasedDecoder during the decoding process.

Definition at line 33 of file ISbeDecodeListener.h.

Constructor & Destructor Documentation

~IDecodeListener()

virtual ~IDecodeListener ( )

virtual

Note

The FIX Engine does NOT manage the lifetime of this listener.

Member Function Documentation

onBeginMessage()

virtual void onBeginMessage ( unsigned templateId, const char * messageType, size_t messageTypeLength )

pure virtual

Called when a new SBE-encoded message started to decode.

Parameters

templateId	The SBE template identifier of the message.
messageType	The FIX type of the message.
messageTypeLength	The length of the messageType string. Doe not include the terminating zero.

onBeginSequence()

virtual void onBeginSequence ( int tag, size_t itemCount )

pure virtual

Called just before first entry of the sequence decoding.

Parameters

tag	The Tag of the sequence
itemCount	The number of entries in the sequence.

onBeginSequenceEntry()

virtual void onBeginSequenceEntry ( size_t index )

pure virtual

Called just before the sequence entry decoding.

Parameters

index

The index of the entry.

onEndMessage()

virtual void onEndMessage ( )

pure virtual

Called when the decoder finishes the current message decoding.

Note

It is possible to reset the caller decoder during this callback.

onEndSequence()

virtual void onEndSequence ( )

pure virtual

Called immediately after the last sequence entry decoded.

onEndSequenceEntry()

virtual void onEndSequenceEntry ( )

pure virtual

Called after the entry was decoded.

onValue() [1/11]

virtual void onValue ( int tag, char value )

pure virtual

Called when a single-char field decoded.

Parameters

tag	The FIX tag of the field.
value	The decoded value.

onValue() [2/11]

virtual void onValue ( int tag, const char * value, size_t valueLength )

pure virtual

Called when a string (ASCII or Unicode) or byteVector decoded.

Parameters

tag	The FIX tag of the field.
value	The pointer to start of decoded data.
valueLength	The length of decoded data (does not include the terminating zero for <string> fields).

onValue() [3/11]

virtual void onValue ( int tag, double value )

pure virtual

Called when a long float (double) field decoded.

Parameters

tag	The FIX tag of the field.
value	The decoded value.

onValue() [4/11]

virtual void onValue ( int tag, float value )

pure virtual

Called when a float field decoded.

Parameters

tag	The FIX tag of the field.
value	The decoded value.

onValue() [5/11]

virtual void onValue ( int tag, int value )

pure virtual

Called when a signed 32-bit integer field decoded.

Parameters

tag	The FIX tag of the field.
value	The decoded value.

onValue() [6/11]

virtual void onValue ( int tag, long long mantissa, int exponent )

pure virtual

Called when a decimal field decoded.

Parameters

tag	The FIX tag of the field.
mantissa	The mantissa of the decoded decimal value.
exponent	The exponent of the decoded decimal value (in range of -64..63).

onValue() [7/11]

virtual void onValue ( int tag, long long value )

pure virtual

Called when a signed 64-bit integer field decoded.

Parameters

tag	The FIX tag of the field.
value	The decoded value.

onValue() [8/11]

virtual void onValue ( int tag, short value )

pure virtual

Called when a signed 16-bit integer or signed 8-bit integer field decoded.

Parameters

tag	The FIX tag of the field.
value	The decoded value.

onValue() [9/11]

virtual void onValue ( int tag, unsigned long long value )

pure virtual

Called when an unsigned 64-bit integer field decoded.

Parameters

tag	The FIX tag of the field.
value	The decoded value.

onValue() [10/11]

virtual void onValue ( int tag, unsigned short value )

pure virtual

Called when an unsigned 16-bit integer or unsigned 8-bit integer field decoded.

Parameters

tag	The FIX tag of the field.
value	The decoded value.

onValue() [11/11]

virtual void onValue ( int tag, unsigned value )

pure virtual

Called when an unsigned 32-bit integer field decoded.

Parameters

tag	The FIX tag of the field.
value	The decoded value.