org.apache.shardingsphere.infra.federation.optimizer.converter.segment.orderby.item

Class OrderByItemConverterUtil

java.lang.Object

org.apache.shardingsphere.infra.federation.optimizer.converter.segment.orderby.item.OrderByItemConverterUtil

public final class OrderByItemConverterUtil
extends Object

Order by item converter utility.

Constructor Summary

Constructors

Constructor and Description
OrderByItemConverterUtil()

Method Summary

Modifier and Type	Method and Description
static Collection<org.apache.calcite.sql.SqlNode>	convertToSQLNode(Collection<org.apache.shardingsphere.sql.parser.sql.common.segment.dml.order.item.OrderByItemSegment> orderByItems) Convert order by items to sql node.
static Collection<org.apache.shardingsphere.sql.parser.sql.common.segment.dml.order.item.OrderByItemSegment>	convertToSQLSegment(org.apache.calcite.sql.SqlNodeList sqlNodeList) Convert sql node list to order by items.

Methods inherited from class java.lang.Object

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

Constructor Detail

OrderByItemConverterUtil

public OrderByItemConverterUtil()

Method Detail

convertToSQLNode

public static Collection<org.apache.calcite.sql.SqlNode> convertToSQLNode(Collection<org.apache.shardingsphere.sql.parser.sql.common.segment.dml.order.item.OrderByItemSegment> orderByItems)

Convert order by items to sql node.

Parameters:

orderByItems - order by item list

Returns:

SQL nodes converted by order by item

convertToSQLSegment

public static Collection<org.apache.shardingsphere.sql.parser.sql.common.segment.dml.order.item.OrderByItemSegment> convertToSQLSegment(org.apache.calcite.sql.SqlNodeList sqlNodeList)

Convert sql node list to order by items.

Parameters:

sqlNodeList - sql node list

Returns:

order by items converted by sql node list