org.apache.shardingsphere.infra.binder.segment.select.projection.impl

类 AggregationProjection

java.lang.Object

org.apache.shardingsphere.infra.binder.segment.select.projection.impl.AggregationProjection

所有已实现的接口:

Projection

直接已知子类:

AggregationDistinctProjection

public class AggregationProjection
extends Object
implements Projection

Aggregation projection.

构造器概要

构造器

构造器和说明
AggregationProjection()

方法概要

限定符和类型	方法和说明
Optional<String>	getAlias() Get alias.
String	getColumnLabel() Get column label.
String	getExpression() Get expression.

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

AggregationProjection

public AggregationProjection()

方法详细资料

getExpression

public final String getExpression()

从接口复制的说明: Projection

Get expression.

指定者:

getExpression 在接口中 Projection

返回:

expression

getAlias

public final Optional<String> getAlias()

从接口复制的说明: Projection

Get alias.

指定者:

getAlias 在接口中 Projection

返回:

alias

getColumnLabel

public String getColumnLabel()

Get column label.

指定者:

getColumnLabel 在接口中 Projection

返回:

column label