PartitionTempFileManager (flink-table-runtime-blink 1.11.2 API)

java.lang.Object
- org.apache.flink.table.filesystem.PartitionTempFileManager

```
@Internal
public class PartitionTempFileManager
extends Object
```
Manage temporary files for writing files. Use special rules to organize directories for temporary files.
Temporary file directory contains the following directory parts: 1.temporary base path directory. 2.checkpoint id directory. 3.task id directory. 4.directories to specify partitioning. 5.data files. eg: /tmp/cp-1/task-0/p0=1/p1=2/fileName.

方法概要

所有方法静态方法实例方法具体方法
限定符和类型	方法和说明
`org.apache.flink.core.fs.Path`	`createPartitionDir(String... partitions)` Generate a new partition directory with partitions.
`static void`	`deleteCheckpoint(org.apache.flink.core.fs.FileSystem fs, org.apache.flink.core.fs.Path basePath, long checkpointId)` Delete checkpoint path.
`static long[]`	`headCheckpoints(org.apache.flink.core.fs.FileSystem fs, org.apache.flink.core.fs.Path basePath, long toCpId)` Returns checkpoints whose keys are less than or equal to `toCpId` in temporary base path.
`static List<org.apache.flink.core.fs.Path>`	`listTaskTemporaryPaths(org.apache.flink.core.fs.FileSystem fs, org.apache.flink.core.fs.Path basePath, long checkpointId)` Returns task temporary paths in this checkpoint.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

方法详细资料

createPartitionDir

public org.apache.flink.core.fs.Path createPartitionDir(String... partitions)

Generate a new partition directory with partitions.

deleteCheckpoint

public static void deleteCheckpoint(org.apache.flink.core.fs.FileSystem fs,
                                    org.apache.flink.core.fs.Path basePath,
                                    long checkpointId)
                             throws IOException

Delete checkpoint path.

抛出:: IOException

headCheckpoints

public static long[] headCheckpoints(org.apache.flink.core.fs.FileSystem fs,
                                     org.apache.flink.core.fs.Path basePath,
                                     long toCpId)
                              throws IOException

Returns checkpoints whose keys are less than or equal to toCpId in temporary base path.

抛出:: IOException

listTaskTemporaryPaths

public static List<org.apache.flink.core.fs.Path> listTaskTemporaryPaths(org.apache.flink.core.fs.FileSystem fs,
                                                                         org.apache.flink.core.fs.Path basePath,
                                                                         long checkpointId)
                                                                  throws Exception

Returns task temporary paths in this checkpoint.

抛出:: Exception

类 PartitionTempFileManager