org.apache.hadoop.hbase.client

类 OperationWithAttributes

java.lang.Object

org.apache.hadoop.hbase.client.Operation

org.apache.hadoop.hbase.client.OperationWithAttributes

所有已实现的接口:

Attributes

直接已知子类:

Mutation, Query

@InterfaceAudience.Public
public abstract class OperationWithAttributes
extends Operation
implements Attributes

字段概要

字段

限定符和类型	字段和说明
static String	ID_ATRIBUTE

构造器概要

构造器

限定符	构造器和说明
protected	OperationWithAttributes() empty construction.
protected	OperationWithAttributes(OperationWithAttributes clone)

方法概要

限定符和类型	方法和说明
byte[]	getAttribute(String name) Gets an attribute
protected long	getAttributeSize()
Map<String,byte[]>	getAttributesMap() Gets all attributes
String	getId() This method allows you to retrieve the identifier for the operation if one was set.
int	getPriority()
OperationWithAttributes	setAttribute(String name, byte[] value) Sets an attribute.
OperationWithAttributes	setId(String id) This method allows you to set an identifier on an operation.
OperationWithAttributes	setPriority(int priority)

从类继承的方法 org.apache.hadoop.hbase.client.Operation

getFingerprint, toJSON, toJSON, toMap, toMap, toString, toString

从类继承的方法 java.lang.Object

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

字段详细资料

ID_ATRIBUTE

public static final String ID_ATRIBUTE

另请参阅:

常量字段值

构造器详细资料

OperationWithAttributes

protected OperationWithAttributes()

empty construction. We need this empty construction to keep binary compatibility.

OperationWithAttributes

protected OperationWithAttributes(OperationWithAttributes clone)

方法详细资料

setAttribute

public OperationWithAttributes setAttribute(String name,
                                            byte[] value)

从接口复制的说明: Attributes

Sets an attribute. In case value = null attribute is removed from the attributes map. Attribute names starting with _ indicate system attributes.

指定者:

setAttribute 在接口中 Attributes

参数:

name - attribute name

value - attribute value

getAttribute

public byte[] getAttribute(String name)

从接口复制的说明: Attributes

Gets an attribute

指定者:

getAttribute 在接口中 Attributes

参数:

name - attribute name

返回:

attribute value if attribute is set, null otherwise

getAttributesMap

public Map<String,byte[]> getAttributesMap()

从接口复制的说明: Attributes

Gets all attributes

指定者:

getAttributesMap 在接口中 Attributes

返回:

unmodifiable map of all attributes

getAttributeSize

protected long getAttributeSize()

setId

public OperationWithAttributes setId(String id)

This method allows you to set an identifier on an operation. The original motivation for this was to allow the identifier to be used in slow query logging, but this could obviously be useful in other places. One use of this could be to put a class.method identifier in here to see where the slow query is coming from.

参数:

id - id to set for the scan

getId

public String getId()

This method allows you to retrieve the identifier for the operation if one was set.

返回:

the id or null if not set

setPriority

public OperationWithAttributes setPriority(int priority)

getPriority

public int getPriority()