Package net.sf.saxon.om
Class DocumentPool
- java.lang.Object
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- net.sf.saxon.om.DocumentPool
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public final class DocumentPool extends java.lang.Object
An object representing the collection of documents handled during a single transformation.From Saxon 7.2, the function of allocating document numbers is performed by the NamePool, not by the DocumentPool. This has a number of effects: in particular it allows operations involving multiple documents (such as generateId() and document()) to occur in a free-standing XPath environment.
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Constructor Summary
Constructors Constructor Description DocumentPool()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
add(DocumentInfo doc, java.lang.String uri)
Add a document to the poolDocumentInfo
discard(DocumentInfo doc)
Release a document from the document pool.DocumentInfo
find(java.lang.String uri)
Get the document with a given document-urijava.lang.String
getDocumentURI(NodeInfo doc)
Get the URI for a given document node, if it is present in the pool.
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Method Detail
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add
public void add(DocumentInfo doc, java.lang.String uri)
Add a document to the pool- Parameters:
doc
- The DocumentInfo for the document in questionuri
- The document-uri property of the document.
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find
public DocumentInfo find(java.lang.String uri)
Get the document with a given document-uri- Parameters:
uri
- The document-uri property of the document.- Returns:
- the DocumentInfo with the given document-uri property if it exists, or null if it is not found.
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getDocumentURI
public java.lang.String getDocumentURI(NodeInfo doc)
Get the URI for a given document node, if it is present in the pool. This supports the document-uri() function.- Parameters:
doc
- The document node- Returns:
- The uri of the document node, if present in the pool, or the systemId of the document node otherwise
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discard
public DocumentInfo discard(DocumentInfo doc)
Release a document from the document pool. This means that if the same document is loaded again later, the source will need to be re-parsed, and nodes will get new identities.
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