org.apache.flink.connector.hbase.source

类 HBaseLookupFunction

java.lang.Object

org.apache.flink.table.functions.UserDefinedFunction

org.apache.flink.table.functions.TableFunction<org.apache.flink.types.Row>

org.apache.flink.connector.hbase.source.HBaseLookupFunction

所有已实现的接口:

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

@Internal
public class HBaseLookupFunction
extends org.apache.flink.table.functions.TableFunction<org.apache.flink.types.Row>

The HBaseLookupFunction 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 Row.

另请参阅:

序列化表格

构造器概要

构造器

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

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()
org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.types.Row>	getResultType()
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, 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

HBaseLookupFunction

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

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

getResultType

public org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.types.Row> getResultType()

覆盖:

getResultType 在类中 org.apache.flink.table.functions.TableFunction<org.apache.flink.types.Row>

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()