org.unitils.database

类 SQLUnitils

java.lang.Object

org.unitils.database.SQLUnitils

public class SQLUnitils
extends Object

Utilities for executing statements and queries.

作者:

Tim Ducheyne, Filip Neven

构造器概要

构造器

构造器和说明
SQLUnitils()

方法概要

限定符和类型	方法和说明
static int	executeUpdate(String sql, DataSource dataSource) Executes the given update statement.
static int	executeUpdateQuietly(String sql, DataSource dataSource) Executes the given statement ignoring all exceptions.
static long	getItemAsLong(String sql, DataSource dataSource) Returns the long extracted from the result of the given query.
static String	getItemAsString(String sql, DataSource dataSource) Returns the value extracted from the result of the given query.
static Set<String>	getItemsAsStringSet(String sql, DataSource dataSource) Returns the items extracted from the result of the given query.
static boolean	isEmpty(String tableName, DataSource dataSource) Utility method to check whether the given table is empty.

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

SQLUnitils

public SQLUnitils()

方法详细资料

executeUpdate

public static int executeUpdate(String sql,
                                DataSource dataSource)

Executes the given update statement.

参数:

sql - The sql string for retrieving the items

dataSource - The data source, not null

返回:

The nr of updates

executeUpdateQuietly

public static int executeUpdateQuietly(String sql,
                                       DataSource dataSource)

Executes the given statement ignoring all exceptions.

参数:

sql - The sql string for retrieving the items

dataSource - The data source, not null

返回:

The nr of updates, -1 if not succesful

getItemAsLong

public static long getItemAsLong(String sql,
                                 DataSource dataSource)

Returns the long extracted from the result of the given query. If no value is found, a UnitilsException is thrown.

参数:

sql - The sql string for retrieving the items

dataSource - The data source, not null

返回:

The long item value

getItemAsString

public static String getItemAsString(String sql,
                                     DataSource dataSource)

Returns the value extracted from the result of the given query. If no value is found, a UnitilsException is thrown.

参数:

sql - The sql string for retrieving the items

dataSource - The data source, not null

返回:

The string item value

getItemsAsStringSet

public static Set<String> getItemsAsStringSet(String sql,
                                              DataSource dataSource)

Returns the items extracted from the result of the given query.

参数:

sql - The sql string for retrieving the items

dataSource - The data source, not null

返回:

The items, not null

isEmpty

public static boolean isEmpty(String tableName,
                              DataSource dataSource)

Utility method to check whether the given table is empty.

参数:

tableName - The table, not null

dataSource - The data source, not null

返回:

True if empty