org.apache.calcite.adapter.cassandra

类 CassandraFilter

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.SingleRel

org.apache.calcite.rel.core.Filter

org.apache.calcite.adapter.cassandra.CassandraFilter

所有已实现的接口:

Cloneable, CassandraRel, org.apache.calcite.plan.RelOptNode, org.apache.calcite.rel.hint.Hintable, org.apache.calcite.rel.RelNode

public class CassandraFilter
extends org.apache.calcite.rel.core.Filter
implements CassandraRel

Implementation of a Filter relational expression in Cassandra.

嵌套类概要

从接口继承的嵌套类/接口 org.apache.calcite.adapter.cassandra.CassandraRel

CassandraRel.Implementor

从接口继承的嵌套类/接口 org.apache.calcite.rel.RelNode

org.apache.calcite.rel.RelNode.Context

字段概要

从类继承的字段 org.apache.calcite.rel.core.Filter

condition, hints

从类继承的字段 org.apache.calcite.rel.SingleRel

input

从类继承的字段 org.apache.calcite.rel.AbstractRelNode

digest, id, rowType, traitSet

从接口继承的字段 org.apache.calcite.adapter.cassandra.CassandraRel

CONVENTION

构造器概要

构造器

构造器和说明
CassandraFilter(org.apache.calcite.plan.RelOptCluster cluster, org.apache.calcite.plan.RelTraitSet traitSet, org.apache.calcite.rel.RelNode child, org.apache.calcite.rex.RexNode condition, List<String> partitionKeys, List<String> clusteringKeys, List<org.apache.calcite.rel.RelFieldCollation> implicitFieldCollations)

方法概要

限定符和类型	方法和说明
@Nullable org.apache.calcite.plan.RelOptCost	computeSelfCost(org.apache.calcite.plan.RelOptPlanner planner, org.apache.calcite.rel.metadata.RelMetadataQuery mq)
CassandraFilter	copy(org.apache.calcite.plan.RelTraitSet traitSet, org.apache.calcite.rel.RelNode input, org.apache.calcite.rex.RexNode condition)
org.apache.calcite.rel.RelCollation	getImplicitCollation() Get the resulting collation by the clustering keys after filtering.
void	implement(CassandraRel.Implementor implementor)
boolean	isSinglePartition() Check if the filter restricts to a single partition.

从类继承的方法 org.apache.calcite.rel.core.Filter

accept, containsOver, copy, deepEquals0, deepHashCode0, estimateFilteredRows, estimateFilteredRows, estimateRowCount, explainTerms, getCondition, getHints, isValid

从类继承的方法 org.apache.calcite.rel.SingleRel

childrenAccept, deriveRowType, getInput, getInputs, replaceInput

从类继承的方法 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, isEnforcer, metadata, onRegister, recomputeDigest, register, sole, toString

从类继承的方法 java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

从接口继承的方法 org.apache.calcite.rel.RelNode

accept, accept, childrenAccept, collectVariablesSet, collectVariablesUsed, copy, deepEquals, deepHashCode, estimateRowCount, explain, explain, fieldIsNullable, getConvention, getCorrelVariable, getDigest, getExpectedInputRowType, getInput, getInputs, getRelDigest, getRelTypeName, getRowType, getTable, getVariablesSet, isEnforcer, isValid, metadata, onRegister, recomputeDigest, register, replaceInput, stripped

从接口继承的方法 org.apache.calcite.plan.RelOptNode

getCluster, getDescription, getId, getTraitSet

从接口继承的方法 org.apache.calcite.rel.hint.Hintable

attachHints, withHints

构造器详细资料

CassandraFilter

public CassandraFilter(org.apache.calcite.plan.RelOptCluster cluster,
                       org.apache.calcite.plan.RelTraitSet traitSet,
                       org.apache.calcite.rel.RelNode child,
                       org.apache.calcite.rex.RexNode condition,
                       List<String> partitionKeys,
                       List<String> clusteringKeys,
                       List<org.apache.calcite.rel.RelFieldCollation> implicitFieldCollations)

方法详细资料

computeSelfCost

public @Nullable org.apache.calcite.plan.RelOptCost computeSelfCost(org.apache.calcite.plan.RelOptPlanner planner,
                                                                    org.apache.calcite.rel.metadata.RelMetadataQuery mq)

指定者:

computeSelfCost 在接口中 org.apache.calcite.rel.RelNode

覆盖:

computeSelfCost 在类中 org.apache.calcite.rel.core.Filter

copy

public CassandraFilter copy(org.apache.calcite.plan.RelTraitSet traitSet,
                            org.apache.calcite.rel.RelNode input,
                            org.apache.calcite.rex.RexNode condition)

指定者:

copy 在类中 org.apache.calcite.rel.core.Filter

implement

public void implement(CassandraRel.Implementor implementor)

指定者:

implement 在接口中 CassandraRel

isSinglePartition

public boolean isSinglePartition()

Check if the filter restricts to a single partition.

返回:

True if the filter will restrict the underlying to a single partition

getImplicitCollation

public org.apache.calcite.rel.RelCollation getImplicitCollation()

Get the resulting collation by the clustering keys after filtering.

返回:

The implicit collation based on the natural sorting by clustering keys