org.apache.flink.connector.hbase.source

类 HBaseRowDataLookupFunction

java.lang.Object

org.apache.flink.table.functions.UserDefinedFunction

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

org.apache.flink.connector.hbase.source.HBaseRowDataLookupFunction

所有已实现的接口:

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

@Internal
public class HBaseRowDataLookupFunction
extends org.apache.flink.table.functions.TableFunction<org.apache.flink.table.data.RowData>

The HBaseRowDataLookupFunction is a standard user-defined table function, it can be used in tableAPI and also useful for temporal table join plan in SQL. It looks up the result as RowData.

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
HBaseRowDataLookupFunction(org.apache.hadoop.conf.Configuration configuration, String hTableName, HBaseTableSchema hbaseTableSchema, String nullStringLiteral)

方法概要

限定符和类型	方法和说明
void	close()
void	eval(Object rowKey) The invoke entry point of lookup function.
String	getHTableName()
void	open(org.apache.flink.table.functions.FunctionContext context)

从类继承的方法 org.apache.flink.table.functions.TableFunction

collect, getKind, getParameterTypes, getResultType, getTypeInference, setCollector

从类继承的方法 org.apache.flink.table.functions.UserDefinedFunction

functionIdentifier, toString

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.table.functions.FunctionDefinition

getRequirements, isDeterministic

构造器详细资料

HBaseRowDataLookupFunction

public HBaseRowDataLookupFunction(org.apache.hadoop.conf.Configuration configuration,
                                  String hTableName,
                                  HBaseTableSchema hbaseTableSchema,
                                  String nullStringLiteral)

方法详细资料

eval

public void eval(Object rowKey)
          throws IOException

The invoke entry point of lookup function.

参数:

rowKey - the lookup key. Currently only support single rowkey.

抛出:

IOException

open

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

覆盖:

open 在类中 org.apache.flink.table.functions.UserDefinedFunction

close

public void close()

覆盖:

close 在类中 org.apache.flink.table.functions.UserDefinedFunction

getHTableName

@VisibleForTesting
public String getHTableName()