org.apache.camel.component.mongodb

Interface MongoDBTailTrackingStrategy

All Known Implementing Classes:

MongoDBTailTrackingEnum

public interface MongoDBTailTrackingStrategy

This class contains different methods for extracting and saving tail tracking information.

Method Summary

Modifier and Type	Method and Description
com.mongodb.BasicDBObject	createQuery(Object lastVal, String increasingField) Creates an object to be used in a query using the last tracking value.
Object	extractLastVal(com.mongodb.DBObject o, String increasingField) Extracts the last tracking value using the field name or an expression.

Method Detail

extractLastVal

Object extractLastVal(com.mongodb.DBObject o,
                      String increasingField)

Extracts the last tracking value using the field name or an expression.

Parameters:

o - The object retrieved by the trailing process.

increasingField - The field name or an expression used to extract the last value.

Returns:

an object representing the last tracking value in a MongoDB collection.

createQuery

com.mongodb.BasicDBObject createQuery(Object lastVal,
                                      String increasingField)

Creates an object to be used in a query using the last tracking value.

Parameters:

lastVal - The last tracking value.

increasingField - The field name or an expression used to extract the last value.

Returns:

the object to be used in a MongoDB query.