it.unibz.inf.ontop.iq.executor.join

Class JoinExtractionUtils

java.lang.Object

it.unibz.inf.ontop.iq.executor.join.JoinExtractionUtils

public class JoinExtractionUtils
extends Object

TODO: describe

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	JoinExtractionUtils.UnsatisfiableExpressionException TODO: explain

Method Summary

Modifier and Type	Method and Description
static com.google.common.collect.ImmutableList<ImmutableExpression>	extractBooleanExpressionsFromJoins(InnerJoinNode topJoinNode, IntermediateQuery query) Deprecated.
static com.google.common.collect.ImmutableList<JoinOrFilterNode>	extractFilterAndInnerJoinNodes(InnerJoinNode topJoinNode, IntermediateQuery query) TODO: find a better name TODO: explain
Optional<ImmutableExpression>	extractFoldAndOptimizeBooleanExpressions(com.google.common.collect.ImmutableList<JoinOrFilterNode> filterAndJoinNodes) TODO: explain
static com.google.common.collect.ImmutableList<QueryNode>	extractNonInnerJoinOrFilterNodesFromJoins(InnerJoinNode topJoinNode, IntermediateQuery query) Deprecated.
Optional<ImmutableExpression>	foldBooleanExpressions(com.google.common.collect.ImmutableList<ImmutableExpression> booleanExpressions)

Methods inherited from class java.lang.Object

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

Method Detail

extractFoldAndOptimizeBooleanExpressions

public Optional<ImmutableExpression> extractFoldAndOptimizeBooleanExpressions(com.google.common.collect.ImmutableList<JoinOrFilterNode> filterAndJoinNodes)
                                                                       throws JoinExtractionUtils.UnsatisfiableExpressionException

TODO: explain

Throws:

JoinExtractionUtils.UnsatisfiableExpressionException

extractFilterAndInnerJoinNodes

public static com.google.common.collect.ImmutableList<JoinOrFilterNode> extractFilterAndInnerJoinNodes(InnerJoinNode topJoinNode,
                                                                                                       IntermediateQuery query)

TODO: find a better name TODO: explain

foldBooleanExpressions

public Optional<ImmutableExpression> foldBooleanExpressions(com.google.common.collect.ImmutableList<ImmutableExpression> booleanExpressions)

extractBooleanExpressionsFromJoins

@Deprecated
public static com.google.common.collect.ImmutableList<ImmutableExpression> extractBooleanExpressionsFromJoins(InnerJoinNode topJoinNode,
                                                                                                                          IntermediateQuery query)

Deprecated.

extractNonInnerJoinOrFilterNodesFromJoins

@Deprecated
public static com.google.common.collect.ImmutableList<QueryNode> extractNonInnerJoinOrFilterNodesFromJoins(InnerJoinNode topJoinNode,
                                                                                                                       IntermediateQuery query)

Deprecated.