org.apache.flink.connector.file.src.impl

类 StaticFileSplitEnumerator

java.lang.Object

org.apache.flink.connector.file.src.impl.StaticFileSplitEnumerator

所有已实现的接口:

AutoCloseable, org.apache.flink.api.common.state.CheckpointListener, org.apache.flink.api.connector.source.SplitEnumerator<FileSourceSplit,PendingSplitsCheckpoint<FileSourceSplit>>

@Internal
public class StaticFileSplitEnumerator
extends Object
implements org.apache.flink.api.connector.source.SplitEnumerator<FileSourceSplit,PendingSplitsCheckpoint<FileSourceSplit>>

A SplitEnumerator implementation for bounded / batch FileSource input.

This enumerator takes all files that are present in the configured input directories and assigns them to the readers. Once all files are processed, the source is finished.

The implementation of this class is rather thin. The actual logic for creating the set of FileSourceSplits to process, and the logic to decide which reader gets what split, are in FileEnumerator and in FileSplitAssigner, respectively.

构造器概要

构造器

构造器和说明
StaticFileSplitEnumerator(org.apache.flink.api.connector.source.SplitEnumeratorContext<FileSourceSplit> context, FileSplitAssigner splitAssigner)

方法概要

限定符和类型	方法和说明
void	addReader(int subtaskId)
void	addSplitsBack(List<FileSourceSplit> splits, int subtaskId)
void	close()
void	handleSourceEvent(int subtaskId, org.apache.flink.api.connector.source.SourceEvent sourceEvent)
void	handleSplitRequest(int subtask, String hostname)
PendingSplitsCheckpoint<FileSourceSplit>	snapshotState(long checkpointId)
void	start()

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.api.connector.source.SplitEnumerator

notifyCheckpointComplete

从接口继承的方法 org.apache.flink.api.common.state.CheckpointListener

notifyCheckpointAborted

构造器详细资料

StaticFileSplitEnumerator

public StaticFileSplitEnumerator(org.apache.flink.api.connector.source.SplitEnumeratorContext<FileSourceSplit> context,
                                 FileSplitAssigner splitAssigner)

方法详细资料

start

public void start()

指定者:

start 在接口中 org.apache.flink.api.connector.source.SplitEnumerator<FileSourceSplit,PendingSplitsCheckpoint<FileSourceSplit>>

close

public void close()
           throws IOException

指定者:

close 在接口中 AutoCloseable

指定者:

close 在接口中 org.apache.flink.api.connector.source.SplitEnumerator<FileSourceSplit,PendingSplitsCheckpoint<FileSourceSplit>>

抛出:

IOException

addReader

public void addReader(int subtaskId)

指定者:

addReader 在接口中 org.apache.flink.api.connector.source.SplitEnumerator<FileSourceSplit,PendingSplitsCheckpoint<FileSourceSplit>>

handleSplitRequest

public void handleSplitRequest(int subtask,
                               @Nullable
                               String hostname)

指定者:

handleSplitRequest 在接口中 org.apache.flink.api.connector.source.SplitEnumerator<FileSourceSplit,PendingSplitsCheckpoint<FileSourceSplit>>

handleSourceEvent

public void handleSourceEvent(int subtaskId,
                              org.apache.flink.api.connector.source.SourceEvent sourceEvent)

指定者:

handleSourceEvent 在接口中 org.apache.flink.api.connector.source.SplitEnumerator<FileSourceSplit,PendingSplitsCheckpoint<FileSourceSplit>>

addSplitsBack

public void addSplitsBack(List<FileSourceSplit> splits,
                          int subtaskId)

指定者:

addSplitsBack 在接口中 org.apache.flink.api.connector.source.SplitEnumerator<FileSourceSplit,PendingSplitsCheckpoint<FileSourceSplit>>

snapshotState

public PendingSplitsCheckpoint<FileSourceSplit> snapshotState(long checkpointId)

指定者:

snapshotState 在接口中 org.apache.flink.api.connector.source.SplitEnumerator<FileSourceSplit,PendingSplitsCheckpoint<FileSourceSplit>>