org.apache.calcite.rel.rules

Class FilterJoinRule.FilterIntoJoinRule

java.lang.Object

org.apache.calcite.plan.RelOptRule

org.apache.calcite.rel.rules.FilterJoinRule

org.apache.calcite.rel.rules.FilterJoinRule.FilterIntoJoinRule

Enclosing class:

FilterJoinRule

public static class FilterJoinRule.FilterIntoJoinRule
extends FilterJoinRule

Rule that tries to push filter expressions into a join condition and into the inputs of the join.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.calcite.rel.rules.FilterJoinRule

FilterJoinRule.FilterIntoJoinRule, FilterJoinRule.JoinConditionPushRule, FilterJoinRule.Predicate

Field Summary

Fields inherited from class org.apache.calcite.rel.rules.FilterJoinRule

DUMB_FILTER_ON_JOIN, FILTER_ON_JOIN, JOIN, TRUE_PREDICATE

Fields inherited from class org.apache.calcite.plan.RelOptRule

description, operands

Constructor Summary

Constructors

Constructor and Description
FilterJoinRule.FilterIntoJoinRule(boolean smart, RelFactories.FilterFactory filterFactory, RelFactories.ProjectFactory projectFactory, FilterJoinRule.Predicate predicate)

Method Summary

Methods

Modifier and Type	Method and Description
void	onMatch(RelOptRuleCall call) Receives notification about a rule match.

Methods inherited from class org.apache.calcite.rel.rules.FilterJoinRule

perform, validateJoinFilters

Methods inherited from class org.apache.calcite.plan.RelOptRule

any, convert, convert, convertList, equals, equals, getOperand, getOperands, getOutConvention, getOutTrait, hashCode, matches, none, operand, operand, operand, operand, operand, some, toString, unordered

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

FilterJoinRule.FilterIntoJoinRule

public FilterJoinRule.FilterIntoJoinRule(boolean smart,
                                 RelFactories.FilterFactory filterFactory,
                                 RelFactories.ProjectFactory projectFactory,
                                 FilterJoinRule.Predicate predicate)

Method Detail

onMatch

public void onMatch(RelOptRuleCall call)

Description copied from class: RelOptRule

Receives notification about a rule match. At the time that this method is called, call.rels holds the set of relational expressions which match the operands to the rule; call.rels[0] is the root expression.

Typically a rule would check that the nodes are valid matches, creates a new expression, then calls back RelOptRuleCall.transformTo(org.apache.calcite.rel.RelNode, java.util.Map<org.apache.calcite.rel.RelNode, org.apache.calcite.rel.RelNode>) to register the expression.

Specified by:

onMatch in class RelOptRule

Parameters:

call - Rule call

See Also:

RelOptRule.matches(RelOptRuleCall)