org.apache.flink.table.filesystem

Class FileSystemLookupFunction<P>

java.lang.Object

org.apache.flink.table.functions.UserDefinedFunction

org.apache.flink.table.functions.TableFunction<org.apache.flink.table.data.RowData>

org.apache.flink.table.filesystem.FileSystemLookupFunction<P>

All Implemented Interfaces:

Serializable, org.apache.flink.table.functions.FunctionDefinition

public class FileSystemLookupFunction<P>
extends org.apache.flink.table.functions.TableFunction<org.apache.flink.table.data.RowData>

Lookup function for filesystem connector tables.

The hive connector and filesystem connector share read/write files code. Currently, this function only used in hive connector.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
FileSystemLookupFunction(PartitionFetcher<P> partitionFetcher, PartitionFetcher.Context<P> fetcherContext, PartitionReader<P,org.apache.flink.table.data.RowData> partitionReader, org.apache.flink.table.types.logical.RowType rowType, int[] lookupKeys, java.time.Duration reloadInterval)

Method Summary

Modifier and Type	Method and Description
void	close()
void	eval(Object... values)
PartitionFetcher.Context<P>	getFetcherContext()
PartitionFetcher<P>	getPartitionFetcher()
PartitionReader<P,org.apache.flink.table.data.RowData>	getPartitionReader()
java.time.Duration	getReloadInterval()
org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.table.data.RowData>	getResultType()
void	open(org.apache.flink.table.functions.FunctionContext context)

Methods inherited from class org.apache.flink.table.functions.TableFunction

collect, getKind, getParameterTypes, getTypeInference, setCollector

Methods inherited from class org.apache.flink.table.functions.UserDefinedFunction

functionIdentifier, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.table.functions.FunctionDefinition

getRequirements, isDeterministic

Constructor Detail

FileSystemLookupFunction

public FileSystemLookupFunction(PartitionFetcher<P> partitionFetcher,
                                PartitionFetcher.Context<P> fetcherContext,
                                PartitionReader<P,org.apache.flink.table.data.RowData> partitionReader,
                                org.apache.flink.table.types.logical.RowType rowType,
                                int[] lookupKeys,
                                java.time.Duration reloadInterval)

Method Detail

open

public void open(org.apache.flink.table.functions.FunctionContext context)
          throws Exception

Overrides:

open in class org.apache.flink.table.functions.UserDefinedFunction

Throws:

Exception

getResultType

public org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.table.data.RowData> getResultType()

Overrides:

getResultType in class org.apache.flink.table.functions.TableFunction<org.apache.flink.table.data.RowData>

eval

public void eval(Object... values)

close

public void close()
           throws Exception

Overrides:

close in class org.apache.flink.table.functions.UserDefinedFunction

Throws:

Exception

getReloadInterval

@VisibleForTesting
public java.time.Duration getReloadInterval()

getPartitionFetcher

@VisibleForTesting
public PartitionFetcher<P> getPartitionFetcher()

getFetcherContext

@VisibleForTesting
public PartitionFetcher.Context<P> getFetcherContext()

getPartitionReader

@VisibleForTesting
public PartitionReader<P,org.apache.flink.table.data.RowData> getPartitionReader()