com.alicloud.openservices.tablestore.model

类 MultiRowQueryCriteria

java.lang.Object

com.alicloud.openservices.tablestore.model.RowQueryCriteria

com.alicloud.openservices.tablestore.model.MultiRowQueryCriteria

public class MultiRowQueryCriteria
extends RowQueryCriteria

The parameters required to query multiple rows of data from the TableStore table, which can support the following several reading behaviors:

• Read a specific version of certain columns or all columns
• Read all versions or the latest N versions within a version range for certain columns or all columns
• Read the latest N versions for certain columns or all columns (N is at least 1 and at most MaxVersions)

Note: The read parameters cannot be set separately for each row; the same query parameters must be used for multiple rows.

构造器概要

构造器

构造器和说明
MultiRowQueryCriteria(String tableName)

方法概要

限定符和类型	方法和说明
MultiRowQueryCriteria	addRow(PrimaryKey primaryKey) Insert the primary key of the row to be queried into the multi-row query condition.
MultiRowQueryCriteria	addRow(PrimaryKey primaryKey, byte[] token) Insert the primary key of the row to be queried into the multi-row query condition.
void	clear() Clear all rows to be queried.
MultiRowQueryCriteria	cloneWithoutRowKeys()
PrimaryKey	get(int index) Get the primary key of a certain row.
List<PrimaryKey>	getRowKeys() Get the primary key of the row to be queried in this table.
List<byte[]>	getTokens()
boolean	isEmpty()
void	setRowKeys(List<PrimaryKey> primaryKeys) Set the primary keys of all rows to be queried in this table.
int	size() Get the number of rows to be queried.

从类继承的方法 com.alicloud.openservices.tablestore.model.RowQueryCriteria

addColumnsToGet, addColumnsToGet, addColumnsToGet, clearColumnsToGet, copyTo, getCacheBlocks, getColumnsToGet, getEndColumn, getFilter, getMaxVersions, getStartColumn, getTableName, getTimeRange, hasSetCacheBlock, hasSetEndColumn, hasSetFilter, hasSetMaxVersions, hasSetStartColumn, hasSetTimeRange, numColumnsToGet, setCacheBlocks, setEndColumn, setFilter, setMaxVersions, setStartColumn, setTableName, setTimeRange, setTimestamp

从类继承的方法 java.lang.Object

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

构造器详细资料

MultiRowQueryCriteria

public MultiRowQueryCriteria(String tableName)

方法详细资料

addRow

public MultiRowQueryCriteria addRow(PrimaryKey primaryKey)

Insert the primary key of the row to be queried into the multi-row query condition.

参数:

primaryKey - The primary key of the row to be queried.

返回:

this (for invocation chain)

addRow

public MultiRowQueryCriteria addRow(PrimaryKey primaryKey,
                                    byte[] token)

Insert the primary key of the row to be queried into the multi-row query condition.

参数:

primaryKey - The primary key of the row to be queried.

返回:

this (for invocation chain)

getRowKeys

public List<PrimaryKey> getRowKeys()

Get the primary key of the row to be queried in this table.

返回:

The primary keys of all rows.

setRowKeys

public void setRowKeys(List<PrimaryKey> primaryKeys)

Set the primary keys of all rows to be queried in this table.

参数:

primaryKeys - The primary keys of all rows.

getTokens

public List<byte[]> getTokens()

get

public PrimaryKey get(int index)

Get the primary key of a certain row.

If the row index does not exist, return null.

参数:

index - The index of the row

返回:

If the row exists, return the primary key of the row; otherwise, return null

clear

public void clear()

Clear all rows to be queried.

size

public int size()

Get the number of rows to be queried.

返回:

The number of rows.

isEmpty

public boolean isEmpty()

cloneWithoutRowKeys

public MultiRowQueryCriteria cloneWithoutRowKeys()