CollectionDataProvider

Description

This DataProvider, reads an XML with a pull/push parser and executes fields bound to xml events. At the moment, only pull parser is handled, using the AXIOM implementation. Called fields are the following:

• START_DOCUMENT
• END_DOCUMENT
• NAMESPACE
• PROCESSING_INSTRUCTION
• ENTITY_REFERENCE
• DTD
• ATTRIBUTE
• START_ELEMENT
• END_ELEMENT
• CHARACTERS

In addition to 'input' and 'output' variables, following are bound to the context of expressions:

• environment: an helper map to pass objects between field;
• parser: the pull/push parser.

GreenVulcano^® ESB Configuration

The following table shows the CollectionDataProvider element's attributes:

Attribute	Type	Description
name	required	The attribute's value cannot be null.
type	fixed	This attribute must assume the value dataProvider.
class	fixed	This attribute must assume the value it.greenvulcano.gvesb.gvdp.impl.CollectionDataProvider.
source-selector	optional	OGNL expression to provide the root object to be passed to the expression stated in the 'Field' items.

Might contain one or more sub-element Field.