Package se.liu.ida.hefquin.engine.queryplan.utils

Class ExpectedVariablesUtils

java.lang.Object

se.liu.ida.hefquin.engine.queryplan.utils.ExpectedVariablesUtils

public class ExpectedVariablesUtils
extends Object

Constructor Summary

Constructors

Constructor	Description
ExpectedVariablesUtils()

Method Summary

Modifier and Type	Method	Description
static ExpectedVariables[]	getExpectedVariables(PhysicalPlan... plans)
static Set<org.apache.jena.sparql.core.Var>	intersectionOfAllVariables(ExpectedVariables... e)	Returns an intersection of the sets of all variables (certain and possible) in all the given ExpectedVariables objects.
static Set<org.apache.jena.sparql.core.Var>	intersectionOfAllVariables(PhysicalPlan... plans)	Returns an intersection of the sets of all variables (certain and possible) in all the given plans.
static Set<org.apache.jena.sparql.core.Var>	intersectionOfCertainVariables(ExpectedVariables... e)	Returns an intersection of the sets of certain variables in all the given ExpectedVariables objects.
static Set<org.apache.jena.sparql.core.Var>	intersectionOfCertainVariables(PhysicalPlan... plans)	Returns an intersection of the sets of certain variables in all the given plans.
static Set<org.apache.jena.sparql.core.Var>	intersectionOfPossibleVariables(ExpectedVariables... e)	Returns an intersection of the sets of possible variables in all the given ExpectedVariables objects.
static Set<org.apache.jena.sparql.core.Var>	intersectionOfPossibleVariables(PhysicalPlan... plans)	Returns an intersection of the sets of possible variables in all the given plans.
static Set<org.apache.jena.sparql.core.Var>	unionOfAllVariables(ExpectedVariables... e)	Returns a set of all the variables (certain and possible) in all the given ExpectedVariables objects.
static Set<org.apache.jena.sparql.core.Var>	unionOfAllVariables(PhysicalPlan... plans)	Returns a set of all the variables (certain and possible) in all the given plans.
static Set<org.apache.jena.sparql.core.Var>	unionOfCertainVariables(ExpectedVariables... e)	Returns a set of all the certain variables in all the given ExpectedVariables objects.
static Set<org.apache.jena.sparql.core.Var>	unionOfCertainVariables(PhysicalPlan... plans)	Returns a set of all the certain variables in all the given plans.
static Set<org.apache.jena.sparql.core.Var>	unionOfPossibleVariables(ExpectedVariables... e)	Returns a set of all the possible variables in all the given ExpectedVariables objects.
static Set<org.apache.jena.sparql.core.Var>	unionOfPossibleVariables(PhysicalPlan... plans)	Returns a set of all the possible variables in all the given plans.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ExpectedVariablesUtils

public ExpectedVariablesUtils()

Method Details

unionOfCertainVariables

public static Set<org.apache.jena.sparql.core.Var> unionOfCertainVariables(PhysicalPlan... plans)

Returns a set of all the certain variables in all the given plans. Returns null if no plan is given.

unionOfCertainVariables

public static Set<org.apache.jena.sparql.core.Var> unionOfCertainVariables(ExpectedVariables... e)

Returns a set of all the certain variables in all the given ExpectedVariables objects. Returns null if no such object is given.

unionOfPossibleVariables

public static Set<org.apache.jena.sparql.core.Var> unionOfPossibleVariables(PhysicalPlan... plans)

Returns a set of all the possible variables in all the given plans. Returns null if no plan is given.

unionOfPossibleVariables

public static Set<org.apache.jena.sparql.core.Var> unionOfPossibleVariables(ExpectedVariables... e)

Returns a set of all the possible variables in all the given ExpectedVariables objects. Returns null if no such object is given.

unionOfAllVariables

public static Set<org.apache.jena.sparql.core.Var> unionOfAllVariables(PhysicalPlan... plans)

Returns a set of all the variables (certain and possible) in all the given plans. Returns null if no plan is given.

unionOfAllVariables

public static Set<org.apache.jena.sparql.core.Var> unionOfAllVariables(ExpectedVariables... e)

Returns a set of all the variables (certain and possible) in all the given ExpectedVariables objects. Returns null if no such object is given.

intersectionOfCertainVariables

public static Set<org.apache.jena.sparql.core.Var> intersectionOfCertainVariables(PhysicalPlan... plans)

Returns an intersection of the sets of certain variables in all the given plans. Returns null if no plan is given.

intersectionOfCertainVariables

public static Set<org.apache.jena.sparql.core.Var> intersectionOfCertainVariables(ExpectedVariables... e)

Returns an intersection of the sets of certain variables in all the given ExpectedVariables objects. Returns null if no such object is given.

intersectionOfPossibleVariables

public static Set<org.apache.jena.sparql.core.Var> intersectionOfPossibleVariables(PhysicalPlan... plans)

Returns an intersection of the sets of possible variables in all the given plans. Returns null if no plan is given.

intersectionOfPossibleVariables

public static Set<org.apache.jena.sparql.core.Var> intersectionOfPossibleVariables(ExpectedVariables... e)

Returns an intersection of the sets of possible variables in all the given ExpectedVariables objects. Returns null if no such object is given.

intersectionOfAllVariables

public static Set<org.apache.jena.sparql.core.Var> intersectionOfAllVariables(PhysicalPlan... plans)

Returns an intersection of the sets of all variables (certain and possible) in all the given plans. Returns null if no plan is given.

intersectionOfAllVariables

public static Set<org.apache.jena.sparql.core.Var> intersectionOfAllVariables(ExpectedVariables... e)

Returns an intersection of the sets of all variables (certain and possible) in all the given ExpectedVariables objects. Returns null if no such object is given.

getExpectedVariables

public static ExpectedVariables[] getExpectedVariables(PhysicalPlan... plans)