程序包 cn.taketoday.context.support

类 DelegatingMessageSource

java.lang.Object

cn.taketoday.context.support.MessageSourceSupport

cn.taketoday.context.support.DelegatingMessageSource

所有已实现的接口:

HierarchicalMessageSource, MessageSource

public class DelegatingMessageSource
extends MessageSourceSupport
implements HierarchicalMessageSource

Empty MessageSource that delegates all calls to the parent MessageSource. If no parent is available, it simply won't resolve any message.

Used as placeholder by AbstractApplicationContext, if the context doesn't define its own MessageSource. Not intended for direct use in applications.

从以下版本开始:

4.0

作者:

Juergen Hoeller

另请参阅:

• AbstractApplicationContext

字段概要

从类继承的字段 cn.taketoday.context.support.MessageSourceSupport

logger

构造器概要

构造器

构造器	说明
DelegatingMessageSource()

方法概要

修饰符和类型	方法	说明
String	getMessage(MessageSourceResolvable resolvable, Locale locale)	Try to resolve the message using all the attributes contained within the MessageSourceResolvable argument that was passed in.
String	getMessage(String code, Object[] args, String defaultMessage, Locale locale)	Try to resolve the message.
String	getMessage(String code, Object[] args, Locale locale)	Try to resolve the message.
MessageSource	getParentMessageSource()	Return the parent of this MessageSource, or null if none.
void	setParentMessageSource(MessageSource parent)	Set the parent that will be used to try to resolve messages that this object can't resolve.
String	toString()

从类继承的方法 cn.taketoday.context.support.MessageSourceSupport

createMessageFormat, formatMessage, isAlwaysUseMessageFormat, renderDefaultMessage, resolveArguments, setAlwaysUseMessageFormat

从类继承的方法 java.lang.Object

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

构造器详细资料

DelegatingMessageSource

public DelegatingMessageSource()

方法详细资料

setParentMessageSource

public void setParentMessageSource(@Nullable
 MessageSource parent)

从接口复制的说明: HierarchicalMessageSource

Set the parent that will be used to try to resolve messages that this object can't resolve.

指定者:

setParentMessageSource 在接口中 HierarchicalMessageSource

参数:

parent - the parent MessageSource that will be used to resolve messages that this object can't resolve. May be null, in which case no further resolution is possible.

getParentMessageSource

@Nullable
public MessageSource getParentMessageSource()

从接口复制的说明: HierarchicalMessageSource

Return the parent of this MessageSource, or null if none.

指定者:

getParentMessageSource 在接口中 HierarchicalMessageSource

getMessage

@Nullable
public String getMessage(String code,
 @Nullable
 Object[] args,
 @Nullable
 String defaultMessage,
 Locale locale)

从接口复制的说明: MessageSource

Try to resolve the message. Return default message if no message was found.

指定者:

getMessage 在接口中 MessageSource

参数:

code - the message code to look up, e.g. 'calculator.noRateSet'. MessageSource users are encouraged to base message names on qualified class or package names, avoiding potential conflicts and ensuring maximum clarity.

args - an array of arguments that will be filled in for params within the message (params look like "{0}", "{1,date}", "{2,time}" within a message), or null if none

defaultMessage - a default message to return if the lookup fails

locale - the locale in which to do the lookup

返回:

the resolved message if the lookup was successful, otherwise the default message passed as a parameter (which may be null)

另请参阅:

• MessageSource.getMessage(MessageSourceResolvable, Locale)
• MessageFormat

getMessage

public String getMessage(String code,
 @Nullable
 Object[] args,
 Locale locale)
                  throws NoSuchMessageException

从接口复制的说明: MessageSource

Try to resolve the message. Treat as an error if the message can't be found.

指定者:

getMessage 在接口中 MessageSource

参数:

code - the message code to look up, e.g. 'calculator.noRateSet'. MessageSource users are encouraged to base message names on qualified class or package names, avoiding potential conflicts and ensuring maximum clarity.

args - an array of arguments that will be filled in for params within the message (params look like "{0}", "{1,date}", "{2,time}" within a message), or null if none

locale - the locale in which to do the lookup

返回:

the resolved message (never null)

抛出:

NoSuchMessageException - if no corresponding message was found

另请参阅:

• MessageSource.getMessage(MessageSourceResolvable, Locale)
• MessageFormat

getMessage

public String getMessage(MessageSourceResolvable resolvable,
 Locale locale)
                  throws NoSuchMessageException

从接口复制的说明: MessageSource

Try to resolve the message using all the attributes contained within the MessageSourceResolvable argument that was passed in.

NOTE: We must throw a NoSuchMessageException on this method since at the time of calling this method we aren't able to determine if the defaultMessage property of the resolvable is null or not.

指定者:

getMessage 在接口中 MessageSource

参数:

resolvable - the value object storing attributes required to resolve a message (may include a default message)

locale - the locale in which to do the lookup

返回:

the resolved message (never null since even a MessageSourceResolvable-provided default message needs to be non-null)

抛出:

NoSuchMessageException - if no corresponding message was found (and no default message was provided by the MessageSourceResolvable)

另请参阅:

• MessageSourceResolvable.getCodes()
• MessageSourceResolvable.getArguments()
• MessageSourceResolvable.getDefaultMessage()
• MessageFormat

toString

public String toString()

覆盖:

toString 在类中 Object