Difference between revisions of "Field"

From GreenVulcano Wiki
Jump to: navigation, search
(Description)
({{GVESB}} Configuration)
Line 7: Line 7:
 
=={{GVESB}} Configuration==  
 
=={{GVESB}} Configuration==  
  
The Field Element is used by: [[ArrayDataProvider]], [[Axis2MessageContextDataProvider]], [[Axis2SAAJSOAPMessageDataProvider]], [[CollectionDataProvider]], [[GVBufferChangeDataProvider]], [[HttpMethodDataProvider]], [[InputStreamDataProvider]], [[JMSBytesMessageDataProvider]], [[JMSMapMessageDataProvider]], [[JMSObjectMessageDataProvider]], [[JMSStreamMessageDataProvider]], [[JMSTextMessageDataProvider]], [[MapDataProvider]], [[ObjectDataProvider]], [[StringDataProvider]], [[XMLEventCollectionDataProvider]].
+
The Field Element is used by:  
 +
* [[ArrayDataProvider]]
 +
* [[Axis2MessageContextDataProvider]]
 +
* [[Axis2SAAJSOAPMessageDataProvider]]
 +
* [[CollectionDataProvider]]
 +
* [[GVBufferChangeDataProvider]]
 +
* [[HttpMethodDataProvider]]
 +
* [[InputStreamDataProvider]]
 +
* [[JMSBytesMessageDataProvider]]
 +
* [[JMSMapMessageDataProvider]]
 +
* [[JMSObjectMessageDataProvider]]
 +
* [[JMSStreamMessageDataProvider]]
 +
* [[JMSTextMessageDataProvider]]
 +
* [[MapDataProvider]]
 +
* [[ObjectDataProvider]]
 +
* [[StringDataProvider]]
 +
* [[XMLEventCollectionDataProvider]].
  
 
The following table shows the Field element's attributes:
 
The following table shows the Field element's attributes:
Line 13: Line 29:
 
! Attribute !! Type !! Description
 
! Attribute !! Type !! Description
 
|-
 
|-
| key || required || The attribute's value can't be null.
+
| key || required || The attribute's value cannot be null.
 
|-
 
|-
 
| type || fixed || This attribute must assume the value '''field'''.
 
| type || fixed || This attribute must assume the value '''field'''.
Line 26: Line 42:
  
 
In all cases, two variables are added to the context:  
 
In all cases, two variables are added to the context:  
* Input: object setted, usually the current [[GVBuffer]], which will not be overwritten from attribute 'source-selector';  
+
* Input: object set, usually the current [[GVBuffer]], which will not be overwritten from attribute 'source-selector';  
 
* Output: the object that is returned by the [[Data provider]].
 
* Output: the object that is returned by the [[Data provider]].
 
|}
 
|}

Revision as of 14:19, 12 November 2012

Description

This element allows to define the key and direction of the Expression defined above.

Field element is used by DataProviders.

GreenVulcano® ESB Configuration

The Field Element is used by:

The following table shows the Field element's attributes:

Attribute Type Description
key required The attribute's value cannot be null.
type fixed This attribute must assume the value field.
direction optional Field direction.
  • INOUT: The expression is evaluated on the object set (usually the current GVBuffer, unless otherwise specified

by the attribute 'source-selector') the value returned by the expression, is added to the context with the prefix 'key_' + @key, and set the data provider to be returned in the output.

  • IN : The expression is evaluated on the object set (usually the current GVBuffer, unless otherwise specified by

the attribute 'source-selector') the value returned by the expression is added to the context with the prefix 'key_' + @key.

  • OUT : The expression is evaluated directly on the object that is returned by the Data provider.

In all cases, two variables are added to the context:

  • Input: object set, usually the current GVBuffer, which will not be overwritten from attribute 'source-selector';
  • Output: the object that is returned by the Data provider.

Contains a sub-element Expression.

Expression

The following table shows the Expression element's attributes:

Attribute Type Description
type required The attribute's admitted values are:
  • ognl
  • xpath
  • regex