Package org.apache.flink.table.operations

Class ShowFunctionsOperation

java.lang.Object

org.apache.flink.table.operations.ShowFunctionsOperation

All Implemented Interfaces:

ExecutableOperation, Operation, ShowOperation

public class ShowFunctionsOperation
extends Object
implements ShowOperation

Operation to describe a SHOW FUNCTIONS [ ( FROM | IN ) [catalog_name.]database_name ] [ [NOT] (LIKE | ILIKE) <sql_like_pattern> ] statement.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ShowFunctionsOperation.FunctionScope	Represent scope of function.

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

ExecutableOperation.Context

Constructor Summary

Constructors

Constructor	Description
ShowFunctionsOperation()
ShowFunctionsOperation(ShowFunctionsOperation.FunctionScope functionScope, String likeType, String likePattern, boolean notLike)
ShowFunctionsOperation(ShowFunctionsOperation.FunctionScope functionScope, String preposition, String catalogName, String databaseName, String likeType, String likePattern, boolean notLike)

Method Summary

Modifier and Type	Method	Description
String	asSummaryString()	Returns a string that summarizes this operation for printing to a console.
TableResultInternal	execute(ExecutableOperation.Context ctx)	Executes the given operation and return the execution result.
ShowFunctionsOperation.FunctionScope	getFunctionScope()
boolean	isLike()
boolean	isNotLike()
boolean	isWithLike()

Methods inherited from class java.lang.Object

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

Constructor Detail

ShowFunctionsOperation

public ShowFunctionsOperation()

ShowFunctionsOperation

public ShowFunctionsOperation(ShowFunctionsOperation.FunctionScope functionScope,
                              String likeType,
                              String likePattern,
                              boolean notLike)

ShowFunctionsOperation

public ShowFunctionsOperation(ShowFunctionsOperation.FunctionScope functionScope,
                              String preposition,
                              String catalogName,
                              String databaseName,
                              String likeType,
                              String likePattern,
                              boolean notLike)

Method Detail

asSummaryString

public String asSummaryString()

Description copied from interface: Operation

Returns a string that summarizes this operation for printing to a console. An implementation might skip very specific properties.

Specified by:

asSummaryString in interface Operation

Returns:

summary string of this operation for debugging purposes

getFunctionScope

public ShowFunctionsOperation.FunctionScope getFunctionScope()

isLike

public boolean isLike()

isWithLike

public boolean isWithLike()

isNotLike

public boolean isNotLike()

execute

public TableResultInternal execute(ExecutableOperation.Context ctx)

Description copied from interface: ExecutableOperation

Executes the given operation and return the execution result.

Specified by:

execute in interface ExecutableOperation

Parameters:

ctx - the context to execute the operation.

Returns:

the content of the execution result.

See Also:

TableEnvironmentInternal.executeInternal(Operation)