com.hazelcast.org.apache.calcite.rel.logical.LogicalTableFunctionScan Maven / Gradle / Ivy
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* this work for additional information regarding copyright ownership.
* The ASF licenses this file to you under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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package com.hazelcast.org.apache.calcite.rel.logical;
import com.hazelcast.org.apache.calcite.plan.Convention;
import com.hazelcast.org.apache.calcite.plan.RelOptCluster;
import com.hazelcast.org.apache.calcite.plan.RelOptCost;
import com.hazelcast.org.apache.calcite.plan.RelOptPlanner;
import com.hazelcast.org.apache.calcite.plan.RelTraitSet;
import com.hazelcast.org.apache.calcite.rel.RelInput;
import com.hazelcast.org.apache.calcite.rel.RelNode;
import com.hazelcast.org.apache.calcite.rel.core.TableFunctionScan;
import com.hazelcast.org.apache.calcite.rel.metadata.RelColumnMapping;
import com.hazelcast.org.apache.calcite.rel.metadata.RelMetadataQuery;
import com.hazelcast.org.apache.calcite.rel.type.RelDataType;
import com.hazelcast.org.apache.calcite.rex.RexNode;
import com.hazelcast.org.checkerframework.checker.nullness.qual.Nullable;
import java.lang.reflect.Type;
import java.util.List;
import java.util.Set;
/**
* Sub-class of {@link com.hazelcast.org.apache.calcite.rel.core.TableFunctionScan}
* not targeted at any particular engine or calling convention.
*/
public class LogicalTableFunctionScan extends TableFunctionScan {
//~ Constructors -----------------------------------------------------------
/**
* Creates a LogicalTableFunctionScan
.
*
* @param cluster Cluster that this relational expression belongs to
* @param inputs 0 or more relational inputs
* @param traitSet Trait set
* @param rexCall Function invocation expression
* @param elementType Element type of the collection that will implement
* this table
* @param rowType Row type produced by function
* @param columnMappings Column mappings associated with this function
*/
public LogicalTableFunctionScan(
RelOptCluster cluster,
RelTraitSet traitSet,
List inputs,
RexNode rexCall,
@Nullable Type elementType, RelDataType rowType,
@Nullable Set columnMappings) {
super(cluster, traitSet, inputs, rexCall, elementType, rowType,
columnMappings);
}
@Deprecated // to be removed before 2.0
public LogicalTableFunctionScan(
RelOptCluster cluster,
List inputs,
RexNode rexCall,
@Nullable Type elementType, RelDataType rowType,
@Nullable Set columnMappings) {
this(cluster, cluster.traitSetOf(Convention.NONE), inputs, rexCall,
elementType, rowType, columnMappings);
}
/**
* Creates a LogicalTableFunctionScan by parsing serialized output.
*/
public LogicalTableFunctionScan(RelInput input) {
super(input);
}
/** Creates a LogicalTableFunctionScan. */
public static LogicalTableFunctionScan create(
RelOptCluster cluster,
List inputs,
RexNode rexCall,
@Nullable Type elementType, RelDataType rowType,
@Nullable Set columnMappings) {
final RelTraitSet traitSet = cluster.traitSetOf(Convention.NONE);
return new LogicalTableFunctionScan(cluster, traitSet, inputs, rexCall,
elementType, rowType, columnMappings);
}
//~ Methods ----------------------------------------------------------------
@Override public LogicalTableFunctionScan copy(
RelTraitSet traitSet,
List inputs,
RexNode rexCall,
@Nullable Type elementType,
RelDataType rowType,
@Nullable Set columnMappings) {
assert traitSet.containsIfApplicable(Convention.NONE);
return new LogicalTableFunctionScan(
getCluster(),
traitSet,
inputs,
rexCall,
elementType,
rowType,
columnMappings);
}
@Override public @Nullable RelOptCost computeSelfCost(RelOptPlanner planner,
RelMetadataQuery mq) {
// REVIEW jvs 8-Jan-2006: what is supposed to be here
// for an abstract rel?
return planner.getCostFactory().makeHugeCost();
}
}
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