Difference between revisions of "DocumentGranule Code"
From DocDataFlow
| (One intermediate revision by one user not shown) | |||
| Line 1: | Line 1: | ||
| − | The DocumentGranule class is derived from the [[Granule|''Granule'']] class. | + | The DocumentGranule class is derived from the [[Granule Code|''Granule'']] class. |
It has a [[Class identifier|''class identifier'']] of <code>com.rorohiko.granule.document</code>. | It has a [[Class identifier|''class identifier'']] of <code>com.rorohiko.granule.document</code>. | ||
| Line 10: | Line 10: | ||
* <code>documentGranule.getFile()</code>: returns the associated file on disk (if any). | * <code>documentGranule.getFile()</code>: returns the associated file on disk (if any). | ||
| + | |||
| + | * <code>documentGranule.isValid()</code>: verifies whether the granule is still valid. In some cases, processing affects the validity of the document granule; if the document granule refers to an underlying document data that's become invalid, this method will reflect that. In that case the granule will need to be dropped, and a new granule constructed to 'wrap' the replacement document. | ||
Latest revision as of 02:15, 30 December 2013
The DocumentGranule class is derived from the Granule class.
It has a class identifier of com.rorohiko.granule.document.
The following methods are provided:
-
documentGranule.getAppContext(): get the current application context for this document granule. In the first version of Crawler, this is a single global context, shared by the whole Crawler session, but in the future, Crawler might support multiple concurrent applications during a single conversion session, in which case the appContext can vary between document granules.
-
documentGranule.getDocumentGranule(): returns the 'owning document' for this granule. Because the DocumentGranule represents the document it is kind of a do-nothing: it returns the granule itself. This same method is available for all document-derived granules, and it is available here too for reasons of symmetry: if you have a document-derived granule, calling getDocumentGranule() will give you the 'owning document'.
-
documentGranule.getFile(): returns the associated file on disk (if any).
-
documentGranule.isValid(): verifies whether the granule is still valid. In some cases, processing affects the validity of the document granule; if the document granule refers to an underlying document data that's become invalid, this method will reflect that. In that case the granule will need to be dropped, and a new granule constructed to 'wrap' the replacement document.
