org.apache.shardingsphere.sqlfederation.optimizer.converter.segment.projection.impl

类 AggregationProjectionConverter

java.lang.Object

org.apache.shardingsphere.sqlfederation.optimizer.converter.segment.projection.impl.AggregationProjectionConverter

所有已实现的接口:

SQLSegmentConverter<org.apache.shardingsphere.sql.parser.sql.common.segment.dml.item.AggregationProjectionSegment,org.apache.calcite.sql.SqlNode>

public final class AggregationProjectionConverter
extends Object
implements SQLSegmentConverter<org.apache.shardingsphere.sql.parser.sql.common.segment.dml.item.AggregationProjectionSegment,org.apache.calcite.sql.SqlNode>

Aggregation projection converter.

构造器概要

构造器

构造器和说明
AggregationProjectionConverter()

方法概要

限定符和类型	方法和说明
Optional<org.apache.calcite.sql.SqlNode>	convert(org.apache.shardingsphere.sql.parser.sql.common.segment.dml.item.AggregationProjectionSegment segment) Convert.

从类继承的方法 java.lang.Object

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

构造器详细资料

AggregationProjectionConverter

public AggregationProjectionConverter()

方法详细资料

convert

public Optional<org.apache.calcite.sql.SqlNode> convert(org.apache.shardingsphere.sql.parser.sql.common.segment.dml.item.AggregationProjectionSegment segment)

从接口复制的说明: SQLSegmentConverter

Convert.

指定者:

convert 在接口中 SQLSegmentConverter<org.apache.shardingsphere.sql.parser.sql.common.segment.dml.item.AggregationProjectionSegment,org.apache.calcite.sql.SqlNode>

参数:

segment - SQL segment be to converted

返回:

converted SQL node