Package org.apache.calcite.rel.rules

Class FilterTableScanRule

java.lang.Object

org.apache.calcite.plan.RelOptRule

org.apache.calcite.plan.RelRule<FilterTableScanRule.Config>

org.apache.calcite.rel.rules.FilterTableScanRule

@Enclosing
public class FilterTableScanRule
extends RelRule<FilterTableScanRule.Config>

Planner rule that converts a Filter on a TableScan of a FilterableTable or a ProjectableFilterableTable to a Bindables.BindableTableScan.

The CoreRules.FILTER_INTERPRETER_SCAN variant allows an intervening EnumerableInterpreter.

See Also:

• ProjectTableScanRule
• CoreRules.FILTER_SCAN
• CoreRules.FILTER_INTERPRETER_SCAN

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	FilterTableScanRule.Config	Rule configuration.

Nested classes/interfaces inherited from class org.apache.calcite.plan.RelRule

RelRule.Done, RelRule.MatchHandler<R extends RelOptRule>, RelRule.OperandBuilder, RelRule.OperandDetailBuilder<R extends RelNode>, RelRule.OperandTransform

Nested classes/interfaces inherited from class org.apache.calcite.plan.RelOptRule

RelOptRule.ConverterRelOptRuleOperand

Field Summary

Fields

Modifier and Type	Field	Description
static final com.google.common.base.Predicate<TableScan>	PREDICATE	Deprecated.

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

config

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

description, operands, relBuilderFactory

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	FilterTableScanRule(RelOptRuleOperand operand, String description)	Deprecated.
protected	FilterTableScanRule(RelOptRuleOperand operand, RelBuilderFactory relBuilderFactory, String description)	Deprecated.
protected	FilterTableScanRule(FilterTableScanRule.Config config)	Creates a FilterTableScanRule.

Method Summary

Modifier and Type	Method	Description
protected void	apply(RelOptRuleCall call, Filter filter, TableScan scan)
void	onMatch(RelOptRuleCall call)	Receives notification about a rule match.
static boolean	test(TableScan scan)

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

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

Methods inherited from class java.lang.Object

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

Field Details

PREDICATE

@Deprecated
public static final com.google.common.base.Predicate<TableScan> PREDICATE

Deprecated.

Constructor Details

FilterTableScanRule

protected FilterTableScanRule(FilterTableScanRule.Config config)

Creates a FilterTableScanRule.

FilterTableScanRule

@Deprecated
protected FilterTableScanRule(RelOptRuleOperand operand,
 String description)

Deprecated.

FilterTableScanRule

@Deprecated
protected FilterTableScanRule(RelOptRuleOperand operand,
 RelBuilderFactory relBuilderFactory,
 String description)

Deprecated.

Method Details

test

public static boolean test(TableScan scan)

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>, org.apache.calcite.plan.RelHintsPropagator) to register the expression.

Specified by:

onMatch in class RelOptRule

Parameters:

call - Rule call

See Also:

• RelOptRule.matches(RelOptRuleCall)

apply

protected void apply(RelOptRuleCall call,
 Filter filter,
 TableScan scan)