org.apache.hadoop.contrib.index.mapred

类 DocumentID

java.lang.Object

org.apache.hadoop.contrib.index.mapred.DocumentID

所有已实现的接口:

Comparable, Writable, WritableComparable

public class DocumentID
extends Object
implements WritableComparable

The class represents a document id, which is of type text.

构造器概要

构造器

构造器和说明
DocumentID() Constructor.

方法概要

方法

限定符和类型	方法和说明
int	compareTo(Object obj)
Text	getText() The text of the document id.
int	hashCode()
void	readFields(DataInput in) Deserialize the fields of this object from in.
String	toString()
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, notify, notifyAll, wait, wait, wait

构造器详细资料

DocumentID

public DocumentID()

Constructor.

方法详细资料

getText

public Text getText()

The text of the document id.

返回:

the text

compareTo

public int compareTo(Object obj)

指定者:

compareTo 在接口中 Comparable

hashCode

public int hashCode()

覆盖:

hashCode 在类中 Object

toString

public String toString()

覆盖:

toString 在类中 Object

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