Package ca.uqac.lif.cep.tuples

Manipulate tuples using SQL-like operations such as SELECT, FROM and WHERE.

Author:

Sylvain Hallé

Class Summary

Class	Description
AppendToTuple
AttributeExpression	Association between an expression to compute a value from an AttributeGroup and an attribute name.
AttributeGroup	A group of attributes taken from the merging of one or more tuples.
Blow	Breaks a single tuple into multiple tuples, one for each key-value pair of the original tuple.
CacheMap<T>	Implementation of an immutable map.
ExpandAsColumns	Transforms a tuple by replacing two key-value pairs by a single new key-value pair.
FetchAttribute	Gets the value of an attribute in a Tuple
FixedTupleBuilder	Utility class to create instances of tuples with a fixed schema
From	Creates an TupleExpression from a set of input tuples and an array of names.
FromFunction	The internal function performing the actual work for the From processor.
GetAttribute	Gets the value of an attribute in an AttributeGroup
JoinSet	Merges all tuples in a set with the same value for a given attribute.
Main	Dummy main file
MapToTuple	Converts a Map object into a Tuple
MergeScalars	Creates a named tuple out of multiple input traces, each containing scalar values.
MergeTuples	Merges the key-value pairs of multiple tuples into a single tuple.
NamedMapPlaceholder
ProjectTuple	Creates an output tuple from input tuples by combining their values.
ProjectTuple.NameFunctionPair	Associates a tuple's key to a function to be evaluated on input tuples
RegexTupleBuilder	Builds a tuple out of parts of text.
RegexTupleBuilder.RegexAttributeNameList
ScalarIntoTuple	Turns a scalar object into a singleton tuple.
Select	Creates a Tuple from an AttributeGroup.
Select.SelectFunction	The internal function performing the actual work for the From processor.
SpliceTupleSource	A splice source that generates a stream of tuples.
TransposePair	Creates two Applies a triple substitution to a singleton tuple.
Tuple	A (named) tuple is a map between attribute names (character strings) and attribute values (any kind of Object).
Tuple.MapEntry<K,V>	Simple implementation of the Map interface
TupleComparator	Compares two tuples according to the values of one or many of their attributes.
TupleFeeder	Creates a feed of events from CRLF-separated string chunks.
TupleFixed	Implementation of a named tuple.
TupleMap	Implementation of a named tuple based on the Map class.
Where	Filters a trace of AttributeGroup objects according to a Boolean function