it.unibz.inf.ontop.iq.node.impl

Class JoinOrFilterVariableNullabilityTools

java.lang.Object

it.unibz.inf.ontop.iq.node.impl.JoinOrFilterVariableNullabilityTools

public class JoinOrFilterVariableNullabilityTools
extends Object

Method Summary

Modifier and Type	Method and Description
VariableNullability	getChildrenVariableNullability(com.google.common.collect.ImmutableList<IQTree> children)
VariableNullability	getDummyVariableNullability(com.google.common.collect.ImmutableSet<Variable> variables)
VariableNullability	getVariableNullability(com.google.common.collect.ImmutableList<IQTree> children, Optional<ImmutableExpression> joiningCondition)
VariableNullability	updateWithFilter(ImmutableExpression filter, com.google.common.collect.ImmutableSet<com.google.common.collect.ImmutableSet<Variable>> nullableGroups, com.google.common.collect.ImmutableSet<Variable> scope)

Methods inherited from class java.lang.Object

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

Method Detail

getChildrenVariableNullability

public VariableNullability getChildrenVariableNullability(com.google.common.collect.ImmutableList<IQTree> children)

getVariableNullability

public VariableNullability getVariableNullability(com.google.common.collect.ImmutableList<IQTree> children,
                                                  Optional<ImmutableExpression> joiningCondition)

updateWithFilter

public VariableNullability updateWithFilter(ImmutableExpression filter,
                                            com.google.common.collect.ImmutableSet<com.google.common.collect.ImmutableSet<Variable>> nullableGroups,
                                            com.google.common.collect.ImmutableSet<Variable> scope)

getDummyVariableNullability

public VariableNullability getDummyVariableNullability(com.google.common.collect.ImmutableSet<Variable> variables)