Package gudusoft.gsqlparser.sqlenv.catalog

Class LegacyCatalogProvider

Object

gudusoft.gsqlparser.sqlenv.catalog.LegacyCatalogProvider

All Implemented Interfaces:

ICatalogProvider

public class LegacyCatalogProvider
extends Object
implements ICatalogProvider

Legacy Catalog Provider（兼容旧实现）

此实现包装 TSQLEnv 的旧 catalogList，提供 ICatalogProvider 接口。

Since:

3.2.0 (Phase 0)

Constructor Summary

Constructors

Constructor	Description
LegacyCatalogProvider(TSQLEnv sqlEnv, List<TSQLCatalog> catalogList)

Method Summary

Modifier and Type	Method	Description
void	addObject(TSQLSchemaObject object)	添加 schema 对象
void	clear()	清空所有对象
TSQLCatalog	createCatalog(String catalogName)	创建 catalog（已存在则返回现有）
TSQLSchemaObject	findObject(String catalog, String schema, String objectName, ESQLDataObjectType type)	查找 schema 对象（全限定名查找）
List<TSQLCatalog>	getAllCatalogs()	获取所有 catalog
TSQLCatalog	getCatalog(String catalogName)	获取 catalog（不存在返回 null）
String	getDefaultCatalogName()	获取默认 catalog 名称
boolean	removeObject(TSQLSchemaObject object)	移除 schema 对象
void	setDefaultCatalogName(String name)	设置默认 catalog 名称
int	size()	获取对象总数

Methods inherited from class java.lang.Object

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

Constructor Details

LegacyCatalogProvider

public LegacyCatalogProvider(TSQLEnv sqlEnv,
 List<TSQLCatalog> catalogList)

Method Details

getCatalog

public TSQLCatalog getCatalog(String catalogName)

Description copied from interface: ICatalogProvider

获取 catalog（不存在返回 null）

Specified by:

getCatalog in interface ICatalogProvider

Parameters:

catalogName - catalog 名称

Returns:

catalog 实例，未找到返回 null

createCatalog

public TSQLCatalog createCatalog(String catalogName)

Description copied from interface: ICatalogProvider

创建 catalog（已存在则返回现有）

Specified by:

createCatalog in interface ICatalogProvider

Parameters:

catalogName - catalog 名称

Returns:

catalog 实例

getAllCatalogs

public List<TSQLCatalog> getAllCatalogs()

Description copied from interface: ICatalogProvider

获取所有 catalog

Specified by:

getAllCatalogs in interface ICatalogProvider

Returns:

catalog 列表

getDefaultCatalogName

public String getDefaultCatalogName()

Description copied from interface: ICatalogProvider

获取默认 catalog 名称

Specified by:

getDefaultCatalogName in interface ICatalogProvider

Returns:

默认 catalog 名称

setDefaultCatalogName

public void setDefaultCatalogName(String name)

Description copied from interface: ICatalogProvider

设置默认 catalog 名称

Specified by:

setDefaultCatalogName in interface ICatalogProvider

Parameters:

name - 默认 catalog 名称

findObject

public TSQLSchemaObject findObject(String catalog,
 String schema,
 String objectName,
 ESQLDataObjectType type)

Description copied from interface: ICatalogProvider

查找 schema 对象（全限定名查找）

Specified by:

findObject in interface ICatalogProvider

Parameters:

catalog - catalog 名称

schema - schema 名称

objectName - 对象名称

type - 对象类型

Returns:

schema 对象，未找到返回 null

addObject

public void addObject(TSQLSchemaObject object)

Description copied from interface: ICatalogProvider

添加 schema 对象

Specified by:

addObject in interface ICatalogProvider

Parameters:

object - schema 对象

removeObject

public boolean removeObject(TSQLSchemaObject object)

Description copied from interface: ICatalogProvider

移除 schema 对象

Specified by:

removeObject in interface ICatalogProvider

Parameters:

object - schema 对象

Returns:

true 如果移除成功

clear

public void clear()

Description copied from interface: ICatalogProvider

清空所有对象

Specified by:

clear in interface ICatalogProvider

size

public int size()

Description copied from interface: ICatalogProvider

获取对象总数

Specified by:

size in interface ICatalogProvider

Returns:

对象总数