Package org.apache.flink.table.operations

Class ShowCatalogsOperation

java.lang.Object

org.apache.flink.table.operations.AbstractShowOperation

org.apache.flink.table.operations.ShowCatalogsOperation

All Implemented Interfaces:

ExecutableOperation, Operation, ShowOperation

@Internal
public class ShowCatalogsOperation
extends AbstractShowOperation

Operation to describe a SHOW CATALOGS statement. The full syntax for SHOW CATALOGS is as followings:

 SHOW CATALOGS [ [NOT] (LIKE | ILIKE) <sql_like_pattern> ]
 

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flink.table.operations.ExecutableOperation

ExecutableOperation.Context

Field Summary

Fields inherited from class org.apache.flink.table.operations.AbstractShowOperation

catalogName, likeOp, preposition

Constructor Summary

Constructors

Constructor	Description
ShowCatalogsOperation(ShowLikeOperator likeOp)

Method Summary

Modifier and Type	Method	Description
protected String	getColumnName()
protected String	getOperationName()
protected Collection<String>	retrieveDataForTableResult(ExecutableOperation.Context ctx)

Methods inherited from class org.apache.flink.table.operations.AbstractShowOperation

asSummaryString, equals, execute, getPrepositionSummaryString, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ShowCatalogsOperation

public ShowCatalogsOperation(@Nullable
                             ShowLikeOperator likeOp)

Method Detail

getOperationName

protected String getOperationName()

Specified by:

getOperationName in class AbstractShowOperation

getColumnName

protected String getColumnName()

Specified by:

getColumnName in class AbstractShowOperation

retrieveDataForTableResult

protected Collection<String> retrieveDataForTableResult(ExecutableOperation.Context ctx)

Specified by:

retrieveDataForTableResult in class AbstractShowOperation