MessageInfo (java 5.5.18-SNAPSHOT API)

All Superinterfaces:

TypedMessageSource

All Known Subinterfaces:

InstrumentMessageSource, TickCursor, UniqueQuoteCursor

All Known Implementing Classes:

InstrumentMessageSourceAdapter, LimitedInstrumentMessageSource, MessageInfoBuffer, SubscriptionManagerWrapper, TickCursorAdapter, TickCursorClientAeron, TickCursorClientAeronMulticast
```
public interface MessageInfo
extends TypedMessageSource
```
Supplies an InstrumentMessage as well as information about its source stream and RecordClassDescriptor.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`int`	`getCurrentEntityIndex()`	Return a small number identifying the returned entity.
`TickStream`	`getCurrentStream()`	Return the current stream instance, unless it has been removed, in which case null is returned.
`int`	`getCurrentStreamIndex()`	Return the index of the stream that is the source of the current message.
`java.lang.String`	`getCurrentStreamKey()`	Return the key of the stream that is the source of the current message.
`deltix.qsrv.hf.pub.InstrumentMessage`	`getMessage()`	Returns the current message.

Methods inherited from interface deltix.qsrv.hf.tickdb.pub.query.TypedMessageSource
getCurrentType, getCurrentTypeIndex

- Method Detail
  - getMessage
```
deltix.qsrv.hf.pub.InstrumentMessage getMessage()
```
    Returns the current message.
  - getCurrentStreamIndex
```
int getCurrentStreamIndex()
```
    Return the index of the stream that is the source of the current message.
    
    Returns:
    
    The current message source stream's index.
  - getCurrentStreamKey
```
java.lang.String getCurrentStreamKey()
```
    Return the key of the stream that is the source of the current message.
    
    Returns:
    
    The source stream key.
  - getCurrentStream
```
TickStream getCurrentStream()
```
    Return the current stream instance, unless it has been removed, in which case null is returned.
  - getCurrentEntityIndex
```
int getCurrentEntityIndex()
```
    Return a small number identifying the returned entity. This number is unique throughout the life of the message source. Removing entities from subscription does not create reusable holes in the "space" of entity indexes.
    
    See Also:
    
    EntitySubscriptionController