Package org.apache.drill.exec.planner.logical.partition

Class FindPartitionConditions.OpState

java.lang.Object

org.apache.drill.exec.planner.logical.partition.FindPartitionConditions.OpState

Enclosing class:

FindPartitionConditions

public class FindPartitionConditions.OpState
extends Object

During top-down traversal of the expression tree, keep track of the current operators that are directory filters. Children that are directory filters add themselves to their parent operators. NOTE: this auxiliary class is necessary because RexNodes are immutable. If they were mutable, we could have easily added/dropped inputs as we encountered directory filters.

Constructor Summary

Constructors

Constructor	Description
OpState(org.apache.calcite.sql.SqlOperator op)

Method Summary

Modifier and Type	Method	Description
void	addChild(org.apache.calcite.rex.RexNode n)
void	clear()
List<org.apache.calcite.rex.RexNode>	getChildren()
org.apache.calcite.sql.SqlOperator	getOp()

Methods inherited from class java.lang.Object

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

Constructor Details

OpState

public OpState(org.apache.calcite.sql.SqlOperator op)

Method Details

getOp

public org.apache.calcite.sql.SqlOperator getOp()

addChild

public void addChild(org.apache.calcite.rex.RexNode n)

getChildren

public List<org.apache.calcite.rex.RexNode> getChildren()

clear

public void clear()