com.alicloud.openservices.tablestore.model

类 PrimaryKeyColumn

java.lang.Object

com.alicloud.openservices.tablestore.model.PrimaryKeyColumn

所有已实现的接口:

Jsonizable, Measurable, Comparable<PrimaryKeyColumn>

public class PrimaryKeyColumn
extends Object
implements Comparable<PrimaryKeyColumn>, Jsonizable, Measurable

In TableStore, each row of data contains a primary key (PrimaryKey), which is composed of multiple primary key columns (PrimaryKeyColumn), and each primary key column includes the name and value of the primary key column (PrimaryKeyValue).

构造器概要

构造器

构造器和说明
PrimaryKeyColumn(String name, PrimaryKeyValue value) Constructs the primary key column based on the specified name and value of the primary key column.

方法概要

限定符和类型	方法和说明
int	compareTo(PrimaryKeyColumn target) Compare the size of two primary key columns.
boolean	equals(Object o)
int	getDataSize() Get the size of the serialized data
String	getName() Get the name of the primary key column.
byte[]	getNameRawData()
PrimaryKeyValue	getValue() Get the value of the primary key column.
int	hashCode()
String	jsonize()
void	jsonize(StringBuilder sb, String newline)
Column	toColumn() Convert the primary key column type to the attribute column type.
String	toString()

从类继承的方法 java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

构造器详细资料

PrimaryKeyColumn

public PrimaryKeyColumn(String name,
                        PrimaryKeyValue value)

Constructs the primary key column based on the specified name and value of the primary key column.

The name of the primary key column cannot be a null pointer or an empty string.

The value of the primary key column cannot be a null pointer.

参数:

name - The name of the primary key column

value - The value of the primary key column

方法详细资料

getName

public String getName()

Get the name of the primary key column.

返回:

the name of the primary key column

getNameRawData

public byte[] getNameRawData()

getValue

public PrimaryKeyValue getValue()

Get the value of the primary key column.

返回:

the value of the primary key column

toColumn

public Column toColumn()
                throws IOException

Convert the primary key column type to the attribute column type.

返回:

抛出:

IOException

toString

public String toString()

覆盖:

toString 在类中 Object

hashCode

public int hashCode()

覆盖:

hashCode 在类中 Object

equals

public boolean equals(Object o)

覆盖:

equals 在类中 Object

compareTo

public int compareTo(PrimaryKeyColumn target)

Compare the size of two primary key columns.

The two primary key columns being compared must have the same name and type.

指定者:

compareTo 在接口中 Comparable<PrimaryKeyColumn>

参数:

target -

返回:

Returns 0 if they are equal, 1 if greater than, and -1 if less than.

jsonize

public String jsonize()

指定者:

jsonize 在接口中 Jsonizable

jsonize

public void jsonize(StringBuilder sb,
                    String newline)

指定者:

jsonize 在接口中 Jsonizable

getDataSize

public int getDataSize()

从接口复制的说明: Measurable

Get the size of the serialized data

指定者:

getDataSize 在接口中 Measurable

返回:

the size of the serialized data