com.aliyun.odps.data

Class TableInfo

java.lang.Object

com.aliyun.odps.data.TableInfo

public class TableInfo
extends Object

表信息，用于定义作业的输入和输出以及表类型的资源.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	TableInfo.TableInfoBuilder

Field Summary

Fields

Modifier and Type	Field and Description
static String	DEFAULT_LABEL
static String	INNER_OUTPUT_LABEL

Constructor Summary

Constructors

Constructor and Description
TableInfo()
TableInfo(String projectName, String tblName, LinkedHashMap<String,String> partSpec, String[] cols, String lable) 给定表名和分区构造一个表信息对象
TableInfo(TableInfo table)

Method Summary

Modifier and Type	Method and Description
static TableInfo.TableInfoBuilder	builder()
boolean	equals(Object that)
String[]	getCols() 获取查询列
String	getLabel() 获取标签
Class<?>	getMapperClass() 获取输入表对应的mapper类
PartitionSpec	getPartitionSpec() 获取分区描述，分区描述是一个PartitionSpec对象.
String	getPartPath() 获取分区路径.
LinkedHashMap<String,String>	getPartSpec() 获取分区描述，分区描述是一个有序Map, 其中key是分区名，value是对应分区的取值.
String	getProjectName() 获取表的Project.
String	getTableName() 获取表名
int	hashCode()
void	setCols(String[] cols) 设置查询列
void	setLable(String lable) 设置标签
void	setMapperClass(Class<?> mapperClass) 设置输入表对应的mapper类
void	setPartSpec(LinkedHashMap<String,String> partSpec) 设置分区描述
void	setPartSpec(String partPath) 设置分区描述
void	setProjectName(String projectName) 设置Project名
void	setTableName(String name) 设置表名
String	toString()
void	validate()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Field Detail

DEFAULT_LABEL

public static final String DEFAULT_LABEL

See Also:

Constant Field Values

INNER_OUTPUT_LABEL

public static final String INNER_OUTPUT_LABEL

See Also:

Constant Field Values

Constructor Detail

TableInfo

public TableInfo(String projectName,
                 String tblName,
                 LinkedHashMap<String,String> partSpec,
                 String[] cols,
                 String lable)

给定表名和分区构造一个表信息对象

Parameters:

projectName -

tblName -

partSpec -

cols -

lable -

TableInfo

public TableInfo()

TableInfo

public TableInfo(TableInfo table)

Method Detail

builder

public static TableInfo.TableInfoBuilder builder()

validate

public void validate()

getProjectName

public String getProjectName()

获取表的Project.

Returns:

表的Project

getPartitionSpec

public PartitionSpec getPartitionSpec()

获取分区描述，分区描述是一个PartitionSpec对象.

Returns:

分区

getPartSpec

public LinkedHashMap<String,String> getPartSpec()

获取分区描述，分区描述是一个有序Map, 其中key是分区名，value是对应分区的取值.

Returns:

分区

getPartPath

public String getPartPath()

获取分区路径. 分区路径是一个由/分隔,=对应的字符串, 会以／结尾. 例如ds=20131230/hr=10/

Returns:

分区路径

setPartSpec

public void setPartSpec(LinkedHashMap<String,String> partSpec)

设置分区描述

Parameters:

partSpec -

setPartSpec

public void setPartSpec(String partPath)

设置分区描述

Parameters:

partSpec -

getCols

public String[] getCols()

获取查询列

Returns:

setCols

public void setCols(String[] cols)

设置查询列

Parameters:

cols -

getTableName

public String getTableName()

获取表名

Returns:

setTableName

public void setTableName(String name)

设置表名

Parameters:

name -

getLabel

public String getLabel()

获取标签

Returns:

setLable

public void setLable(String lable)

设置标签

Parameters:

lable -

getMapperClass

public Class<?> getMapperClass()

获取输入表对应的mapper类

Returns:

mapper类

setMapperClass

public void setMapperClass(Class<?> mapperClass)

设置输入表对应的mapper类

Parameters:

mapperClass -

setProjectName

public void setProjectName(String projectName)

设置Project名

Parameters:

projectName -

equals

public boolean equals(Object that)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object