Package org.apache.flink.table.operations

Class FunctionQueryOperation

java.lang.Object

org.apache.flink.table.operations.FunctionQueryOperation

All Implemented Interfaces:

Operation, QueryOperation

@Internal
public class FunctionQueryOperation
extends Object
implements QueryOperation

Describes a relational operation that was created from applying a (process) table function.

Constructor Summary

Constructors

Constructor	Description
FunctionQueryOperation(ContextResolvedFunction resolvedFunction, List<org.apache.flink.table.expressions.ResolvedExpression> arguments, org.apache.flink.table.catalog.ResolvedSchema resolvedSchema)

Method Summary

Modifier and Type	Method	Description
<T> T	accept(QueryOperationVisitor<T> visitor)
String	asSerializableString(org.apache.flink.table.expressions.SqlFactory sqlFactory)	Returns a SQL string that fully serializes this instance.
String	asSummaryString()	Returns a string that summarizes this operation for printing to a console.
List<org.apache.flink.table.expressions.ResolvedExpression>	getArguments()
List<QueryOperation>	getChildren()
org.apache.flink.table.types.DataType	getOutputDataType()
ContextResolvedFunction	getResolvedFunction()
org.apache.flink.table.catalog.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

Methods inherited from interface org.apache.flink.table.operations.QueryOperation

asSerializableString

Constructor Detail

FunctionQueryOperation

public FunctionQueryOperation(ContextResolvedFunction resolvedFunction,
                              List<org.apache.flink.table.expressions.ResolvedExpression> arguments,
                              org.apache.flink.table.catalog.ResolvedSchema resolvedSchema)

Method Detail

getResolvedFunction

public ContextResolvedFunction getResolvedFunction()

getArguments

public List<org.apache.flink.table.expressions.ResolvedExpression> getArguments()

getOutputDataType

public org.apache.flink.table.types.DataType getOutputDataType()

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

getResolvedSchema

public org.apache.flink.table.catalog.ResolvedSchema getResolvedSchema()

Description copied from interface: QueryOperation

Resolved schema of this operation.

Specified by:

getResolvedSchema in interface QueryOperation

asSerializableString

public String asSerializableString(org.apache.flink.table.expressions.SqlFactory sqlFactory)

Description copied from interface: QueryOperation

Returns a SQL 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

Parameters:

sqlFactory - can be used to customize the serialization to a SQL string

Returns:

Flink SQL string for persisting in a catalog

See Also:

Operation.asSummaryString(), EnvironmentSettings.Builder.withSqlFactory(SqlFactory)

getChildren

public List<QueryOperation> getChildren()

Specified by:

getChildren in interface QueryOperation

accept

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

Specified by:

accept in interface QueryOperation