Package org.apache.flink.table.planner.plan.rules.logical

Class AsyncCalcSplitRule.AsyncCalcSplitOnePerCalcRule

java.lang.Object

RemoteCalcSplitProjectionRuleBase<org.apache.flink.table.planner.plan.rules.logical.AsyncCalcSplitRule.AsyncCalcSplitOnePerCalcRule.State>

org.apache.flink.table.planner.plan.rules.logical.AsyncCalcSplitRule.AsyncCalcSplitOnePerCalcRule

Enclosing class:

AsyncCalcSplitRule

public static class AsyncCalcSplitRule.AsyncCalcSplitOnePerCalcRule
extends RemoteCalcSplitProjectionRuleBase<org.apache.flink.table.planner.plan.rules.logical.AsyncCalcSplitRule.AsyncCalcSplitOnePerCalcRule.State>

Splits async calls if there are multiple across projections, so that there's one per calc. This assumes that the nested rule has been run first, so there is just one per projection.

For Example: Calc(select=[asyncCall(), asyncCall()]) -> Source

becomes

AsyncCalc(select=[asyncCall(), f0]) -> AsyncCalc(select=[asyncCall() as f0]) -> Source

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	AsyncCalcSplitRule.AsyncCalcSplitOnePerCalcRule.State	State object used to keep track of whether a match has been found yet.

Constructor Summary

Constructors

Constructor	Description
AsyncCalcSplitOnePerCalcRule(RemoteCalcCallFinder callFinder)

Method Summary

Modifier and Type	Method	Description
scala.Option<AsyncCalcSplitRule.AsyncCalcSplitOnePerCalcRule.State>	getMatchState()
boolean	matches(org.apache.calcite.plan.RelOptRuleCall call)
boolean	needConvert(org.apache.calcite.rex.RexProgram program, org.apache.calcite.rex.RexNode node, scala.Option<AsyncCalcSplitRule.AsyncCalcSplitOnePerCalcRule.State> matchState)

Methods inherited from class java.lang.Object

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

Constructor Details

AsyncCalcSplitOnePerCalcRule

public AsyncCalcSplitOnePerCalcRule(RemoteCalcCallFinder callFinder)

Method Details

matches

public boolean matches(org.apache.calcite.plan.RelOptRuleCall call)

needConvert

public boolean needConvert(org.apache.calcite.rex.RexProgram program,
 org.apache.calcite.rex.RexNode node,
 scala.Option<AsyncCalcSplitRule.AsyncCalcSplitOnePerCalcRule.State> matchState)

getMatchState

public scala.Option<AsyncCalcSplitRule.AsyncCalcSplitOnePerCalcRule.State> getMatchState()