org.apache.druid.sql.calcite.expression.builtin

Class RegexpLikeOperatorConversion

java.lang.Object

org.apache.druid.sql.calcite.expression.builtin.RegexpLikeOperatorConversion

All Implemented Interfaces:

SqlOperatorConversion

public class RegexpLikeOperatorConversion
extends Object
implements SqlOperatorConversion

Constructor Summary

Constructors

Constructor and Description
RegexpLikeOperatorConversion()

Method Summary

Modifier and Type	Method and Description
org.apache.calcite.sql.SqlFunction	calciteOperator() Returns the SQL operator corresponding to this function.
DruidExpression	toDruidExpression(PlannerContext plannerContext, RowSignature rowSignature, org.apache.calcite.rex.RexNode rexNode) Translate a Calcite RexNode to a Druid expression.
DimFilter	toDruidFilter(PlannerContext plannerContext, RowSignature rowSignature, VirtualColumnRegistry virtualColumnRegistry, org.apache.calcite.rex.RexNode rexNode) Returns a Druid filter corresponding to a Calcite RexNode used as a filter condition.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.druid.sql.calcite.expression.SqlOperatorConversion

toDruidExpressionWithPostAggOperands, toPostAggregator

Constructor Detail

RegexpLikeOperatorConversion

public RegexpLikeOperatorConversion()

Method Detail

calciteOperator

public org.apache.calcite.sql.SqlFunction calciteOperator()

Description copied from interface: SqlOperatorConversion

Returns the SQL operator corresponding to this function. Should be a singleton.

Specified by:

calciteOperator in interface SqlOperatorConversion

Returns:

operator

toDruidExpression

public DruidExpression toDruidExpression(PlannerContext plannerContext,
                                         RowSignature rowSignature,
                                         org.apache.calcite.rex.RexNode rexNode)

Description copied from interface: SqlOperatorConversion

Translate a Calcite RexNode to a Druid expression.

Specified by:

toDruidExpression in interface SqlOperatorConversion

Parameters:

plannerContext - SQL planner context

rowSignature - signature of the rows to be extracted from

rexNode - expression meant to be applied on top of the rows

Returns:

Druid expression, or null if translation is not possible

See Also:

Expressions.toDruidExpression(PlannerContext, RowSignature, RexNode)

toDruidFilter

@Nullable
public DimFilter toDruidFilter(PlannerContext plannerContext,
                                         RowSignature rowSignature,
                                         @Nullable
                                         VirtualColumnRegistry virtualColumnRegistry,
                                         org.apache.calcite.rex.RexNode rexNode)

Description copied from interface: SqlOperatorConversion

Returns a Druid filter corresponding to a Calcite RexNode used as a filter condition.

Specified by:

toDruidFilter in interface SqlOperatorConversion

Parameters:

plannerContext - SQL planner context

rowSignature - input row signature

virtualColumnRegistry - re-usable virtual column references

rexNode - filter expression rex node

Returns:

filter, or null if the call cannot be translated to a filter