HdfsFileStatus (Hadoop 1.2.2-SNAPSHOT API)

java.lang.Object
- org.apache.hadoop.hdfs.protocol.HdfsFileStatus

所有已实现的接口:

Writable
```
public class HdfsFileStatus
extends Object
implements Writable
```
Interface that represents the over the wire information for a file.

字段概要

字段
限定符和类型字段和说明

static byte[] EMPTY_NAME

字段
限定符和类型	字段和说明
`static byte[]`	`EMPTY_NAME`

构造器概要

构造器
构造器和说明
`HdfsFileStatus()` default constructor
`HdfsFileStatus(long length, boolean isdir, int block_replication, long blocksize, long modification_time, long access_time, FsPermission permission, String owner, String group, byte[] path)` Constructor

方法概要

方法
限定符和类型	方法和说明
`long`	`getAccessTime()` Get the access time of the file.
`long`	`getBlockSize()` Get the block size of the file.
`String`	`getFullName(String parent)` Get the string representation of the full path name
`Path`	`getFullPath(Path parent)` Get the full path
`String`	`getGroup()` Get the group associated with the file.
`long`	`getLen()` Get the length of this file, in bytes.
`String`	`getLocalName()` Get the string representation of the local name
`byte[]`	`getLocalNameInBytes()` Get the Java UTF8 representation of the local name
`long`	`getModificationTime()` Get the modification time of the file.
`String`	`getOwner()` Get the owner of the file.
`FsPermission`	`getPermission()` Get FsPermission associated with the file.
`short`	`getReplication()` Get the replication factor of a file.
`boolean`	`isDir()` Is this a directory?
`boolean`	`isEmptyLocalName()` Check if the local name is empty
`void`	`readFields(DataInput in)` Deserialize the fields of this object from `in`.
`void`	`write(DataOutput out)` Serialize the fields of this object to `out`.

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

- 字段详细资料
  - EMPTY_NAME
```
public static final byte[] EMPTY_NAME
```
- 构造器详细资料
  - HdfsFileStatus
```
public HdfsFileStatus()
```
    default constructor
  - HdfsFileStatus
```
public HdfsFileStatus(long length,
              boolean isdir,
              int block_replication,
              long blocksize,
              long modification_time,
              long access_time,
              FsPermission permission,
              String owner,
              String group,
              byte[] path)
```
    Constructor
    
    参数:
    length - the number of bytes the file has
    isdir - if the path is a directory
    block_replication - the replication factor
    blocksize - the block size
    modification_time - modification time
    access_time - access time
    permission - permission
    owner - the owner of the path
    group - the group of the path
    path - the local name in java UTF8 encoding the same as that in-memory
- 方法详细资料
  - getLen
```
public final long getLen()
```
    Get the length of this file, in bytes.
    
    返回:
    the length of this file, in bytes.
  - isDir
```
public final boolean isDir()
```
    Is this a directory?
    
    返回:
    true if this is a directory
  - getBlockSize
```
public final long getBlockSize()
```
    Get the block size of the file.
    
    返回:
    the number of bytes
  - getReplication
```
public final short getReplication()
```
    Get the replication factor of a file.
    
    返回:
    the replication factor of a file.
  - getModificationTime
```
public final long getModificationTime()
```
    Get the modification time of the file.
    
    返回:
    the modification time of file in milliseconds since January 1, 1970 UTC.
  - getAccessTime
```
public final long getAccessTime()
```
    Get the access time of the file.
    
    返回:
    the access time of file in milliseconds since January 1, 1970 UTC.
  - getPermission
```
public final FsPermission getPermission()
```
    Get FsPermission associated with the file.
    
    返回:
    permssion
  - getOwner
```
public final String getOwner()
```
    Get the owner of the file.
    
    返回:
    owner of the file
  - getGroup
```
public final String getGroup()
```
    Get the group associated with the file.
    
    返回:
    group for the file.
  - isEmptyLocalName
```
public final boolean isEmptyLocalName()
```
    Check if the local name is empty
    
    返回:
    true if the name is empty
  - getLocalName
```
public final String getLocalName()
```
    Get the string representation of the local name
    
    返回:
    the local name in string
  - getLocalNameInBytes
```
public final byte[] getLocalNameInBytes()
```
    Get the Java UTF8 representation of the local name
    
    返回:
    the local name in java UTF8
  - getFullName
```
public final String getFullName(String parent)
```
    Get the string representation of the full path name
    
    参数:
    parent - the parent path
    
    返回:
    the full path in string
  - getFullPath
```
public final Path getFullPath(Path parent)
```
    Get the full path
    
    参数:
    parent - the parent path
    
    返回:
    the full path
  - write
```
public void write(DataOutput out)
           throws IOException
```
    从接口复制的说明: Writable
    
    Serialize the fields of this object to out.
    
    指定者:
    
    write 在接口中 Writable
    
    参数:
    out - DataOuput to serialize this object into.
    
    抛出:
    
    IOException
  - readFields
```
public void readFields(DataInput in)
                throws IOException
```
    从接口复制的说明: Writable
    
    Deserialize the fields of this object from in.
    For efficiency, implementations should attempt to re-use storage in the existing object where possible.
    
    指定者:
    
    readFields 在接口中 Writable
    
    参数:
    in - DataInput to deseriablize this object from.
    
    抛出:
    
    IOException

类 HdfsFileStatus

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

EMPTY_NAME

构造器详细资料

HdfsFileStatus

HdfsFileStatus

方法详细资料

getLen

isDir

getBlockSize

getReplication

getModificationTime

getAccessTime

getPermission

getOwner

getGroup

isEmptyLocalName

getLocalName

getLocalNameInBytes

getFullName

getFullPath

write

readFields