org.apache.shardingsphere.infra.federation.optimizer.converter.segment.projection

类 ProjectionsConverter

java.lang.Object

org.apache.shardingsphere.infra.federation.optimizer.converter.segment.projection.ProjectionsConverter

所有已实现的接口:

SQLSegmentConverter<org.apache.shardingsphere.sql.parser.sql.common.segment.dml.item.ProjectionsSegment,org.apache.calcite.sql.SqlNodeList>

public final class ProjectionsConverter
extends Object
implements SQLSegmentConverter<org.apache.shardingsphere.sql.parser.sql.common.segment.dml.item.ProjectionsSegment,org.apache.calcite.sql.SqlNodeList>

Projection converter.

构造器概要

构造器

构造器和说明
ProjectionsConverter()

方法概要

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

ProjectionsConverter

public ProjectionsConverter()

方法详细资料

convert

public Optional<org.apache.calcite.sql.SqlNodeList> convert(org.apache.shardingsphere.sql.parser.sql.common.segment.dml.item.ProjectionsSegment 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.ProjectionsSegment,org.apache.calcite.sql.SqlNodeList>

参数:

segment - SQL segment be to converted

返回:

converted SQL node