org.apache.flink.table.operations

Class CalculatedQueryOperation

java.lang.Object

org.apache.flink.table.operations.CalculatedQueryOperation

All Implemented Interfaces:

Operation, QueryOperation

@Internal
public class CalculatedQueryOperation
extends Object
implements QueryOperation

Describes a relational operation that was created from applying a TableFunction.

Constructor Summary

Constructors

Constructor and Description
CalculatedQueryOperation(ContextResolvedFunction resolvedFunction, List<ResolvedExpression> arguments, ResolvedSchema resolvedSchema)

Method Summary

Modifier and Type	Method and Description
<U> U	accept(QueryOperationVisitor<U> visitor)
String	asSerializableString() Returns a string that fully serializes this instance.
String	asSummaryString() Returns a string that summarizes this operation for printing to a console.
List<ResolvedExpression>	getArguments()
List<QueryOperation>	getChildren()
ContextResolvedFunction	getResolvedFunction()
ResolvedSchema	getResolvedSchema() Resolved schema of this operation.

Methods inherited from class java.lang.Object

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

Constructor Detail

CalculatedQueryOperation

public CalculatedQueryOperation(ContextResolvedFunction resolvedFunction,
                                List<ResolvedExpression> arguments,
                                ResolvedSchema resolvedSchema)

Method Detail

getResolvedFunction

public ContextResolvedFunction getResolvedFunction()

getArguments

public List<ResolvedExpression> getArguments()

getResolvedSchema

public ResolvedSchema getResolvedSchema()

Description copied from interface: QueryOperation

Resolved schema of this operation.

Specified by:

getResolvedSchema in interface QueryOperation

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

asSerializableString

public String asSerializableString()

Description copied from interface: QueryOperation

Returns a string that fully serializes this instance. The serialized string can be used for storing the query in e.g. a Catalog as a view.

Specified by:

asSerializableString in interface QueryOperation

Returns:

detailed string for persisting in a catalog

See Also:

Operation.asSummaryString()

getChildren

public List<QueryOperation> getChildren()

Specified by:

getChildren in interface QueryOperation

accept

public <U> U accept(QueryOperationVisitor<U> visitor)

Specified by:

accept in interface QueryOperation