Module xl
Package de.grogra.xl.query
package de.grogra.xl.query
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ClassDescriptionA
CompileModel
is used by an XL compiler to parametrize the access to graph-like data sources in queries.AFrame
stores the current values of queryVariable
s of a single query, including information if the variables are already bound to a value or not.AGraph
represents a single relational data source for XL's relational query and rewriting facilities within the context of a single thread (i.e., the methods are not thread-safe).AProducer
is used within right hand sides of XL rules in order to construct the replacement for the match of the left hand side.This class contains the state information of a query pertaining to multiple scales.This class represents exceptions thrown by QueryStateMultiScale This class is part of the extension of XL for multiscale modelling.ARuntimeModel
is used by the XL run-time system as an interface to the concrete relational data source in use.This class is used to represent a space character between 2 primary predicates (i.e.AVariable
represents a query variable of a query.