The Data configuration item is the last piece of the puzzle in providing textual data display to the user, with the Data Source providing the repository information, the Data Definition providing the description of the data, and finally the Data providing the display label and entity to link to.
A Data Definition describes a source of data that can be used in a number of places through out Weave, but to allow this data to be displayed directly to the user (via a data grid view, etc) then we need to provide some extra information to allow Weave to know how to present the data to the user (i.e. give it a user readable label) and tell it which entity the data relates to (so Weave knows which rows to return results for).
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Examples
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<jdbc:datasource id="datasource.main">
<-- connection details for data source -->
</jdbc:datasource>
<data:datadefinition id="dd_roadDetails">
<datasourcedataconnection datasource="datasource.main" table="ROADS" key="RD_NAME" prefix="DISTINCT">
<parameter name="name" label="Name" column="RD_NAME"/>
<parameter name="suffix" label="Suffix" column="RD_SUFFIX"/>
<parameter name="type" label="Type" column="RD_TYPE"/>
<parameter name="altname" label="Alt. Name" column="ALT_NAME"/>
<parameter name="altsuffix" label="Alt. Suffix" column="ALT_SUFFIX"/>
<parameter name="alttype" label="Alt. Type" column="ALT_TYPE"/>
<parameter name="class" label="Class" column="CLASS_CODE" type="integer"/>
</datasourcedataconnection>
</data:datadefinition>
<data:data id="roadDetails" label="Road Details" datadefinition="dd_roadDetails" entity="roads"/>
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Data with ACL
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<data:data id="roadDetails" label="Road Details" datadefinition="dd_roadDetails" entity="roads">
<acl id="public"/>
</data:data>
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