Package net.sf.saxon.s9api
Class ItemType
java.lang.Object
net.sf.saxon.s9api.ItemType
An item type, as defined in the XPath/XQuery specifications.
This class contains a number of static properties
to obtain instances representing simple item types, such as
item()
, node()
, and xs:anyAtomicType
.
More complicated item types, especially those that are dependent on information in a schema,
are available using factory methods on the ItemTypeFactory
object.
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Field Summary
Fields -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionprotected Processor
Get the underlying ProcessorMethod to get the underlying Saxon implementation objectboolean
Determine whether this item type matches a given item.boolean
Determine whether this ItemType subsumes another ItemType.
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Field Details
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ANY_ITEM
ItemType representing the type item(), that is, any item at all -
ANY_NODE
ItemType representing the type node(), that is, any node -
ANY_ATOMIC_VALUE
ItemType representing the type xs:anyAtomicType, that is, any atomic value
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Constructor Details
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ItemType
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Method Details
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matches
Determine whether this item type matches a given item.- Parameters:
item
- the item to be tested against this item type- Returns:
- true if the item matches this item type, false if it does not match.
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subsumes
Determine whether this ItemType subsumes another ItemType. Specifically,A.subsumes(B) is true if every value that matches the ItemType B also matches the ItemType A.
- Parameters:
other
- the other ItemType- Returns:
- true if this ItemType subsumes the other ItemType. This includes the case where A and B represent the same ItemType.
- Since:
- 9.1
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getUnderlyingItemType
Method to get the underlying Saxon implementation objectThis gives access to Saxon methods that may change from one release to another.
- Returns:
- the underlying Saxon implementation object
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getProcessor
Get the underlying Processor- Returns:
- the processor used to create this ItemType, if any
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