org.apache.flink.table.catalog

类 ResolvedCatalogView

java.lang.Object

org.apache.flink.table.catalog.ResolvedCatalogView

所有已实现的接口:

CatalogBaseTable, CatalogView, ResolvedCatalogBaseTable<CatalogView>

@PublicEvolving
public final class ResolvedCatalogView
extends Object
implements ResolvedCatalogBaseTable<CatalogView>, CatalogView

A validated CatalogView that is backed by the original metadata coming from the Catalog but resolved by the framework.

嵌套类概要

从接口继承的嵌套类/接口 org.apache.flink.table.catalog.CatalogBaseTable

CatalogBaseTable.TableKind

构造器概要

构造器

构造器和说明
ResolvedCatalogView(CatalogView origin, ResolvedSchema resolvedSchema)

方法概要

限定符和类型	方法和说明
CatalogBaseTable	copy() Get a deep copy of the CatalogBaseTable instance.
String	getComment() Get comment of the table or view.
Optional<String>	getDescription() Get a brief description of the table or view.
Optional<String>	getDetailedDescription() Get a detailed description of the table or view.
String	getExpandedQuery() Expanded text of the original view definition This is needed because the context such as current DB is lost after the session, in which view is defined, is gone.
Map<String,String>	getOptions() Returns a map of string-based options.
CatalogView	getOrigin() Returns the original, unresolved metadata object from the Catalog.
String	getOriginalQuery() Original text of the view definition that also preserves the original formatting.
ResolvedSchema	getResolvedSchema() Returns a fully resolved and validated ResolvedSchema.
Schema	getUnresolvedSchema() Returns the schema of the table or view.

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.table.catalog.ResolvedCatalogBaseTable

getSchema

从接口继承的方法 org.apache.flink.table.catalog.CatalogView

getTableKind, of

构造器详细资料

ResolvedCatalogView

public ResolvedCatalogView(CatalogView origin,
                           ResolvedSchema resolvedSchema)

方法详细资料

getOrigin

public CatalogView getOrigin()

从接口复制的说明: ResolvedCatalogBaseTable

Returns the original, unresolved metadata object from the Catalog.

This method might be useful if catalog-specific object instances should be directly forwarded from the catalog to a factory.

指定者:

getOrigin 在接口中 ResolvedCatalogBaseTable<CatalogView>

getResolvedSchema

public ResolvedSchema getResolvedSchema()

从接口复制的说明: ResolvedCatalogBaseTable

Returns a fully resolved and validated ResolvedSchema.

Connectors can configure themselves by accessing ResolvedSchema.getPrimaryKey() and ResolvedSchema.toPhysicalRowDataType().

指定者:

getResolvedSchema 在接口中 ResolvedCatalogBaseTable<CatalogView>

getOptions

public Map<String,String> getOptions()

从接口复制的说明: CatalogBaseTable

Returns a map of string-based options.

In case of CatalogTable, these options may determine the kind of connector and its configuration for accessing the data in the external system. See DynamicTableFactory for more information.

指定者:

getOptions 在接口中 CatalogBaseTable

getUnresolvedSchema

public Schema getUnresolvedSchema()

从接口复制的说明: CatalogBaseTable

Returns the schema of the table or view.

The schema can reference objects from other catalogs and will be resolved and validated by the framework when accessing the table or view.

指定者:

getUnresolvedSchema 在接口中 CatalogBaseTable

另请参阅:

ResolvedCatalogTable, ResolvedCatalogView

getComment

public String getComment()

从接口复制的说明: CatalogBaseTable

Get comment of the table or view.

指定者:

getComment 在接口中 CatalogBaseTable

返回:

comment of the table/view.

copy

public CatalogBaseTable copy()

从接口复制的说明: CatalogBaseTable

Get a deep copy of the CatalogBaseTable instance.

指定者:

copy 在接口中 CatalogBaseTable

返回:

a copy of the CatalogBaseTable instance

getDescription

public Optional<String> getDescription()

从接口复制的说明: CatalogBaseTable

Get a brief description of the table or view.

指定者:

getDescription 在接口中 CatalogBaseTable

返回:

an optional short description of the table/view

getDetailedDescription

public Optional<String> getDetailedDescription()

从接口复制的说明: CatalogBaseTable

Get a detailed description of the table or view.

指定者:

getDetailedDescription 在接口中 CatalogBaseTable

返回:

an optional long description of the table/view

getOriginalQuery

public String getOriginalQuery()

从接口复制的说明: CatalogView

Original text of the view definition that also preserves the original formatting.

指定者:

getOriginalQuery 在接口中 CatalogView

返回:

the original string literal provided by the user.

getExpandedQuery

public String getExpandedQuery()

从接口复制的说明: CatalogView

Expanded text of the original view definition This is needed because the context such as current DB is lost after the session, in which view is defined, is gone. Expanded query text takes care of this, as an example.

For example, for a view that is defined in the context of "default" database with a query select * from test1, the expanded query text might become select `test1`.`name`, `test1`.`value` from `default`.`test1`, where table test1 resides in database "default" and has two columns ("name" and "value").

指定者:

getExpandedQuery 在接口中 CatalogView

返回:

the view definition in expanded text.