Class MongoSort
java.lang.Object
org.apache.calcite.rel.AbstractRelNode
org.apache.calcite.rel.SingleRel
org.apache.calcite.rel.core.Sort
org.apache.calcite.adapter.mongodb.MongoSort
- All Implemented Interfaces:
Cloneable
,MongoRel
,RelOptNode
,RelNode
public class MongoSort extends Sort implements MongoRel
Implementation of
Sort
relational expression in MongoDB.-
Nested Class Summary
Nested classes/interfaces inherited from interface org.apache.calcite.adapter.mongodb.MongoRel
MongoRel.Implementor
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Field Summary
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Constructor Summary
Constructors Constructor Description MongoSort(RelOptCluster cluster, RelTraitSet traitSet, RelNode child, RelCollation collation, RexNode offset, RexNode fetch)
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Method Summary
Modifier and Type Method Description RelOptCost
computeSelfCost(RelOptPlanner planner, RelMetadataQuery mq)
Returns the cost of this plan (not including children).Sort
copy(RelTraitSet traitSet, RelNode input, RelCollation newCollation, RexNode offset, RexNode fetch)
void
implement(MongoRel.Implementor implementor)
Methods inherited from class org.apache.calcite.rel.core.Sort
accept, copy, copy, explainTerms, getCollation, getSortExps, isEnforcer
Methods inherited from class org.apache.calcite.rel.SingleRel
childrenAccept, deriveRowType, estimateRowCount, getInput, getInputs, replaceInput
Methods inherited from class org.apache.calcite.rel.AbstractRelNode
accept, collectVariablesSet, collectVariablesUsed, deepEquals, deepHashCode, equals, explain, getCluster, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getRelDigest, getRelTypeName, getRowType, getTable, getTraitSet, getVariablesSet, hashCode, isValid, metadata, onRegister, recomputeDigest, register, sole, toString
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
Methods inherited from interface org.apache.calcite.rel.RelNode
accept, accept, childrenAccept, collectVariablesSet, collectVariablesUsed, copy, deepEquals, deepHashCode, estimateRowCount, explain, explain, getConvention, getCorrelVariable, getDigest, getExpectedInputRowType, getInput, getInputs, getRelDigest, getRelTypeName, getRowType, getTable, getVariablesSet, isEnforcer, isValid, metadata, onRegister, recomputeDigest, register, replaceInput
Methods inherited from interface org.apache.calcite.plan.RelOptNode
getCluster, getDescription, getId, getTraitSet
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Constructor Details
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MongoSort
public MongoSort(RelOptCluster cluster, RelTraitSet traitSet, RelNode child, RelCollation collation, RexNode offset, RexNode fetch)
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Method Details
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computeSelfCost
Description copied from interface:RelNode
Returns the cost of this plan (not including children). The base implementation throws an error; derived classes should override.NOTE jvs 29-Mar-2006: Don't call this method directly. Instead, use
RelMetadataQuery.getNonCumulativeCost(org.apache.calcite.rel.RelNode)
, which gives plugins a chance to override the rel's default ideas about cost.- Specified by:
computeSelfCost
in interfaceRelNode
- Overrides:
computeSelfCost
in classSort
- Parameters:
planner
- Planner for cost calculationmq
- Metadata query- Returns:
- Cost of this plan (not including children)
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copy
public Sort copy(RelTraitSet traitSet, RelNode input, RelCollation newCollation, RexNode offset, RexNode fetch) -
implement
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