Difference between revisions of "Field"

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(Created page with "==Description== Field element is used by Data providers. Allows to define the key and direction of the Expression defined above. =={{GVESB}} Configuration== The Field Ele...")
 
({{GVESB}} Configuration)
 
(8 intermediate revisions by one other user not shown)
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==Description==
 
==Description==
  
Field element is used by [[Data providers]]. Allows to define the key and direction of the Expression defined above.
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This element allows to define the key and direction of the Expression defined above.
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 +
Field element is used by [[GVDataProviderManager#DataProviders|DataProviders]].
  
 
=={{GVESB}} Configuration==  
 
=={{GVESB}} Configuration==  
  
The Field Element is used by: [[ArrayDataProvider]], [[Axis2MessageContextDataProvider]], [[Axis2SAAJSOAPMessageDataProvider]], [[CollectionDataProvider]], [[HttpMethodDataProvider]], [[InputStreamDataProvider]], [[JMSBytesMessageDataProvider]], [[JMSMapMessageDataProvider]], [[JMSObjectMessageDataProvider]], [[JMSStreamMessageDataProvider]], [[JMSTextMessageDataProvider]], [[MapDataProvider]], [[ObjectDataProvider]], [[StringDataProvider]], [[XMLEventCollectionDataProvider]].
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The Field Element is used by:  
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* [[ArrayDataProvider]]
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* [[Axis2MessageContextDataProvider]]
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* [[Axis2SAAJSOAPMessageDataProvider]]
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* [[CollectionDataProvider]]
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* [[GVBufferChangeDataProvider]]
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* [[HttpMethodDataProvider]]
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* [[InputStreamDataProvider]]
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* [[JMSBytesMessageDataProvider]]
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* [[JMSMapMessageDataProvider]]
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* [[JMSObjectMessageDataProvider]]
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* [[JMSStreamMessageDataProvider]]
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* [[JMSTextMessageDataProvider]]
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* [[MapDataProvider]]
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* [[ObjectDataProvider]]
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* [[StringDataProvider]]
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* [[XMLEventCollectionDataProvider]].
  
 
The following table shows the Field element's attributes:
 
The following table shows the Field element's attributes:
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! Attribute !! Type !! Description
 
! Attribute !! Type !! Description
 
|-
 
|-
| key || required || The attribute's value can't be null.
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| 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'''.
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the attribute 'source-selector') the value returned by the expression is added to the context with the prefix 'key_' + @key.
 
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]].
 
* OUT : The expression is evaluated directly on the object that is returned by the [[Data provider]].
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|}
  
 
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';  
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* 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]].
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* output: the object that is returned by the [[Data provider]].
|}
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Contains a sub-element [[#Expression|Expression]].
 
Contains a sub-element [[#Expression|Expression]].
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* xpath
 
* xpath
 
* regex
 
* regex
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<div class="version_ge3.3">
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* js
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</div>
 
|}
 
|}

Latest revision as of 09:33, 22 September 2014

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
  • js