DefaultMessageCodesResolver (Spring Framework) - Spring Framework 1.2.9 API 文档英文版

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org.springframework.validation
Class DefaultMessageCodesResolver

java.lang.Object
  org.springframework.validation.DefaultMessageCodesResolver

All Implemented Interfaces:: Serializable, MessageCodesResolver

public class DefaultMessageCodesResolver
extends Object
implements MessageCodesResolver, Serializable
extends Object
implements MessageCodesResolver, Serializable

Default implementation of the MessageCodesResolver interface.

Will create 2 message codes for an object error, in the following order:

1.: code + "." + object name
2.: code

Will create 4 message codes for a field specification, in the following order:

1.: code + "." + object name + "." + field
2.: code + "." + field
3.: code + "." + field type
4.: code

E.g. in case of code "typeMismatch", object name "user", field "age":

1. try "typeMismatch.user.age"
2. try "typeMismatch.age"
3. try "typeMismatch.int"
4. try "typeMismatch"

Thus, this resolution algorithm can be leveraged for example to show specific messages for binding errors like "required" and "typeMismatch":

at the object + field level ("age" field, but only on "user");
at the field level (all "age" fields, no matter which object name);
or at the general level (all fields, on any object).

In case of array, List or Map properties, both codes for specific elements and for the whole collection are generated. Assuming a field "name" of an array "groups" in object "user":

1. try "typeMismatch.user.groups[0].name"
2. try "typeMismatch.user.groups.name"
3. try "typeMismatch.groups[0].name"
4. try "typeMismatch.groups.name"
5. try "typeMismatch.name"
6. try "typeMismatch.java.lang.String"
7. try "typeMismatch"

Since:: 1.0.1
Author:: Juergen Hoeller
See Also:: Serialized Form

Field Summary

static String CODE_SEPARATOR


Constructor Summary

DefaultMessageCodesResolver()


Method Summary

protected void buildFieldList(String field, List fieldList)
          Add both keyed and non-keyed entries for the given field to the field list.

String[] resolveMessageCodes(String errorCode, String objectName)
          Build message codes for the given error code and object name.

String[] resolveMessageCodes(String errorCode, String objectName, String field, Class fieldType)
          Build the code list for the given code and field: an object/field-specific code, a field-specific code, a plain error code.

Methods inherited from class java.lang.Object

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

Field Summary
`static String`	`CODE_SEPARATOR`

Constructor Summary
`DefaultMessageCodesResolver()`

Method Summary
`protected void`	`buildFieldList(String field, List fieldList)` Add both keyed and non-keyed entries for the given field to the field list.
`String[]`	`resolveMessageCodes(String errorCode, String objectName)` Build message codes for the given error code and object name.
`String[]`	`resolveMessageCodes(String errorCode, String objectName, String field, Class fieldType)` Build the code list for the given code and field: an object/field-specific code, a field-specific code, a plain error code.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

CODE_SEPARATOR

public static final String CODE_SEPARATOR

See Also:: Constant Field Values

Constructor Detail