uk.co.real_logic.sbe.otf

Interface TokenListener

All Known Implementing Classes:

AbstractTokenListener, JsonTokenListener

public interface TokenListener

Callback interface to be implemented by code wanting to decode messages on-the-fly.

If all methods are not required then consider extending AbstractTokenListener for simpler code.

Method Summary

Modifier and Type	Method and Description
void	onBeginComposite(Token fieldToken, List<Token> tokens, int fromIndex, int toIndex) Beginning of Composite encoded type encountered.
void	onBeginGroup(Token token, int groupIndex, int numInGroup) Beginning of group encoded type encountered.
void	onBeginMessage(Token token) Called on beginning the decoding of a message.
void	onBitSet(Token fieldToken, DirectBuffer buffer, int bufferIndex, List<Token> tokens, int fromIndex, int toIndex, int actingVersion) BitSet encoded type encountered.
void	onEncoding(Token fieldToken, DirectBuffer buffer, int bufferIndex, Token typeToken, int actingVersion) Primitive encoded type encountered.
void	onEndComposite(Token fieldToken, List<Token> tokens, int fromIndex, int toIndex) End of Composite encoded type encountered.
void	onEndGroup(Token token, int groupIndex, int numInGroup) End of group encoded type encountered.
void	onEndMessage(Token token) Called on end of decoding of a message.
void	onEnum(Token fieldToken, DirectBuffer buffer, int bufferIndex, List<Token> tokens, int fromIndex, int toIndex, int actingVersion) Enum encoded type encountered.
void	onGroupHeader(Token token, int numInGroup) Group encountered.
void	onVarData(Token fieldToken, DirectBuffer buffer, int bufferIndex, int length, Token typeToken) Var data field encountered.

Method Detail

onBeginMessage

void onBeginMessage(Token token)

Called on beginning the decoding of a message.

Parameters:

token - representing the IR for message including metadata.

onEndMessage

void onEndMessage(Token token)

Called on end of decoding of a message.

Parameters:

token - representing the IR for message including metadata.

onEncoding

void onEncoding(Token fieldToken,
                DirectBuffer buffer,
                int bufferIndex,
                Token typeToken,
                int actingVersion)

Primitive encoded type encountered. This can be a root block field or field within a composite or group.

Within a composite the typeToken and fieldToken are the same.

Parameters:

fieldToken - in the IR representing the field of the message root or group.

buffer - containing the encoded message.

bufferIndex - at which the encoded field begins.

typeToken - of the encoded primitive value.

actingVersion - of the encoded message for determining validity of extension fields.

onEnum

void onEnum(Token fieldToken,
            DirectBuffer buffer,
            int bufferIndex,
            List<Token> tokens,
            int fromIndex,
            int toIndex,
            int actingVersion)

Enum encoded type encountered.

Parameters:

fieldToken - in the IR representing the field of the message root or group.

buffer - containing the encoded message.

bufferIndex - at which the encoded field begins.

tokens - describing the message.

fromIndex - at which the enum metadata begins.

toIndex - at which the enum metadata ends.

actingVersion - of the encoded message for determining validity of extension fields.

onBitSet

void onBitSet(Token fieldToken,
              DirectBuffer buffer,
              int bufferIndex,
              List<Token> tokens,
              int fromIndex,
              int toIndex,
              int actingVersion)

BitSet encoded type encountered.

Parameters:

fieldToken - in the IR representing the field of the message root or group.

buffer - containing the encoded message.

bufferIndex - at which the encoded field begins.

tokens - describing the message.

fromIndex - at which the bit set metadata begins.

toIndex - at which the bit set metadata ends.

actingVersion - of the encoded message for determining validity of extension fields.

onBeginComposite

void onBeginComposite(Token fieldToken,
                      List<Token> tokens,
                      int fromIndex,
                      int toIndex)

Beginning of Composite encoded type encountered.

Parameters:

fieldToken - in the IR representing the field of the message root or group.

tokens - describing the message.

fromIndex - at which the composite metadata begins.

toIndex - at which the composite metadata ends.

onEndComposite

void onEndComposite(Token fieldToken,
                    List<Token> tokens,
                    int fromIndex,
                    int toIndex)

End of Composite encoded type encountered.

Parameters:

fieldToken - in the IR representing the field of the message root or group.

tokens - describing the message.

fromIndex - at which the composite metadata begins.

toIndex - at which the composite metadata ends.

onGroupHeader

void onGroupHeader(Token token,
                   int numInGroup)

Group encountered.

Parameters:

token - describing the group.

numInGroup - number of times the group will be repeated.

onBeginGroup

void onBeginGroup(Token token,
                  int groupIndex,
                  int numInGroup)

Beginning of group encoded type encountered.

Parameters:

token - describing the group.

groupIndex - index for the repeat count of the group.

numInGroup - number of times the group will be repeated.

onEndGroup

void onEndGroup(Token token,
                int groupIndex,
                int numInGroup)

End of group encoded type encountered.

Parameters:

token - describing the group.

groupIndex - index for the repeat count of the group.

numInGroup - number of times the group will be repeated.

onVarData

void onVarData(Token fieldToken,
               DirectBuffer buffer,
               int bufferIndex,
               int length,
               Token typeToken)

Var data field encountered.

Parameters:

fieldToken - in the IR representing the var data field.

buffer - containing the encoded message.

bufferIndex - at which the variable data begins.

length - of the variable data in bytes.

typeToken - of the variable data. Needed to determine character encoding of the variable data.