net.hasor.cobble.convert

类 ConverterUtils

java.lang.Object

net.hasor.cobble.convert.ConverterUtils

public class ConverterUtils
extends Object

Utility methods for converting String scalar values to objects of the specified Class, String arrays to arrays of the specified Class.

For more details, see ConverterBean which provides the implementations for these methods.

版本:

$Revision: 556229 $ $Date: 2007-07-14 07:11:19 +0100 (Sat, 14 Jul 2007) $

作者:

Craig R. McClanahan, Ralph Schaer, Chris Audley

另请参阅:

ConverterBean

构造器概要

构造器

构造器和说明
ConverterUtils()

方法概要

限定符和类型	方法和说明
static Object	convert(Class<?> targetType, Object value) Convert the value to an object of the specified class (if possible).
static String	convert(Object value) Convert the specified value into a String.
static Object	convert(String[] values, Class clazz) Convert an array of specified values to an array of objects of the specified class (if possible).
static Object	convert(String value, Class clazz) Convert the specified value to an object of the specified class (if possible).
static void	deregister() Remove all registered Converters, and re-establish the standard Converters.
static void	deregister(Class clazz) Remove any registered Converter for the specified destination Class.
static Converter	lookup(Class clazz) Look up and return any registered Converter for the specified destination class; if there is no registered Converter, return null.
static Converter	lookup(Class sourceType, Class targetType) Look up and return any registered Converter for the specified source and destination class; if there is no registered Converter, return null.
static void	register(Converter converter, Class clazz) Register a custom Converter for the specified destination Class, replacing any previously registered Converter.

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

ConverterUtils

public ConverterUtils()

方法详细资料

convert

public static String convert(Object value)

Convert the specified value into a String.

For more details see ConverterBean.

参数:

value - Value to be converted (may be null)

返回:

The converted String value

另请参阅:

ConverterBean.convert(Object)

convert

public static Object convert(String value,
                             Class clazz)

Convert the specified value to an object of the specified class (if possible). Otherwise, return a String representation of the value.

For more details see ConverterBean.

参数:

value - Value to be converted (may be null)

clazz - Java class to be converted to

返回:

The converted value

另请参阅:

ConverterBean.convert(String, Class)

convert

public static Object convert(String[] values,
                             Class clazz)

Convert an array of specified values to an array of objects of the specified class (if possible).

For more details see ConverterBean.

参数:

values - Array of values to be converted

clazz - Java array or element class to be converted to

返回:

The converted value

另请参阅:

ConverterBean.convert(String[], Class)

convert

public static Object convert(Class<?> targetType,
                             Object value)

Convert the value to an object of the specified class (if possible).

参数:

value - Value to be converted (may be null)

targetType - Class of the value to be converted to

返回:

The converted value

抛出:

ConversionException - if thrown by an underlying Converter

deregister

public static void deregister()

Remove all registered Converters, and re-establish the standard Converters.

For more details see ConverterBean.

另请参阅:

ConverterBean.deregister()

deregister

public static void deregister(Class clazz)

Remove any registered Converter for the specified destination Class.

For more details see ConverterBean.

参数:

clazz - Class for which to remove a registered Converter

另请参阅:

ConverterBean.deregister(Class)

lookup

public static Converter lookup(Class clazz)

Look up and return any registered Converter for the specified destination class; if there is no registered Converter, return null.

For more details see ConverterBean.

参数:

clazz - Class for which to return a registered Converter

返回:

The registered Converter or null if not found

另请参阅:

ConverterBean.lookup(Class)

lookup

public static Converter lookup(Class sourceType,
                               Class targetType)

Look up and return any registered Converter for the specified source and destination class; if there is no registered Converter, return null.

参数:

sourceType - Class of the value being converted

targetType - Class of the value to be converted to

返回:

The registered Converter or null if not found

register

public static void register(Converter converter,
                            Class clazz)

Register a custom Converter for the specified destination Class, replacing any previously registered Converter.

For more details see ConverterBean.

参数:

converter - Converter to be registered

clazz - Destination class for conversions performed by this Converter

另请参阅:

ConverterBean.register(Converter, Class)