org.apache.flink.table.examples.java.connectors

类 SocketSourceFunction

java.lang.Object

org.apache.flink.api.common.functions.AbstractRichFunction

org.apache.flink.streaming.api.functions.source.RichSourceFunction<org.apache.flink.table.data.RowData>

org.apache.flink.table.examples.java.connectors.SocketSourceFunction

所有已实现的接口:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.RichFunction, org.apache.flink.api.java.typeutils.ResultTypeQueryable<org.apache.flink.table.data.RowData>, org.apache.flink.streaming.api.functions.source.SourceFunction<org.apache.flink.table.data.RowData>

public final class SocketSourceFunction
extends org.apache.flink.streaming.api.functions.source.RichSourceFunction<org.apache.flink.table.data.RowData>
implements org.apache.flink.api.java.typeutils.ResultTypeQueryable<org.apache.flink.table.data.RowData>

The SocketSourceFunction opens a socket and consumes bytes.

It splits records by the given byte delimiter (`\n` by default) and delegates the decoding to a pluggable DeserializationSchema.

Note: This is only an example and should not be used in production. The source function is not fault-tolerant and can only work with a parallelism of 1.

另请参阅:

序列化表格

嵌套类概要

从接口继承的嵌套类/接口 org.apache.flink.streaming.api.functions.source.SourceFunction

org.apache.flink.streaming.api.functions.source.SourceFunction.SourceContext<T>

构造器概要

构造器

构造器和说明
SocketSourceFunction(String hostname, int port, byte byteDelimiter, org.apache.flink.api.common.serialization.DeserializationSchema<org.apache.flink.table.data.RowData> deserializer)

方法概要

限定符和类型	方法和说明
void	cancel()
org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.table.data.RowData>	getProducedType()
void	open(org.apache.flink.configuration.Configuration parameters)
void	run(org.apache.flink.streaming.api.functions.source.SourceFunction.SourceContext<org.apache.flink.table.data.RowData> ctx)

从类继承的方法 org.apache.flink.api.common.functions.AbstractRichFunction

close, getIterationRuntimeContext, getRuntimeContext, setRuntimeContext

从类继承的方法 java.lang.Object

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

构造器详细资料

SocketSourceFunction

public SocketSourceFunction(String hostname,
                            int port,
                            byte byteDelimiter,
                            org.apache.flink.api.common.serialization.DeserializationSchema<org.apache.flink.table.data.RowData> deserializer)

方法详细资料

getProducedType

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

指定者:

getProducedType 在接口中 org.apache.flink.api.java.typeutils.ResultTypeQueryable<org.apache.flink.table.data.RowData>

open

public void open(org.apache.flink.configuration.Configuration parameters)
          throws Exception

指定者:

open 在接口中 org.apache.flink.api.common.functions.RichFunction

覆盖:

open 在类中 org.apache.flink.api.common.functions.AbstractRichFunction

抛出:

Exception

run

public void run(org.apache.flink.streaming.api.functions.source.SourceFunction.SourceContext<org.apache.flink.table.data.RowData> ctx)
         throws Exception

指定者:

run 在接口中 org.apache.flink.streaming.api.functions.source.SourceFunction<org.apache.flink.table.data.RowData>

抛出:

Exception

cancel

public void cancel()

指定者:

cancel 在接口中 org.apache.flink.streaming.api.functions.source.SourceFunction<org.apache.flink.table.data.RowData>