ItemType

java.lang.Object
- net.sf.saxon.s9api.ItemType

```
public class ItemType
extends java.lang.Object
```
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.

Field Summary

Fields
Modifier and Type	Field	Description
`static ItemType`	`ANY_ATOMIC_VALUE`	ItemType representing the type xs:anyAtomicType, that is, any atomic value
`static ItemType`	`ANY_ITEM`	ItemType representing the type item(), that is, any item at all
`static ItemType`	`ANY_NODE`	ItemType representing the type node(), that is, any node

Constructor Summary

Constructors
Modifier Constructor Description

protected ItemType(ItemType underlyingType, Processor processor)

Constructors
Modifier	Constructor	Description
`protected`	`ItemType(ItemType underlyingType, Processor processor)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected Processor`	`getProcessor()`	Get the underlying Processor
`ItemType`	`getUnderlyingItemType()`	Method to get the underlying Saxon implementation object
`boolean`	`matches(XdmItem item)`	Determine whether this item type matches a given item.
`boolean`	`subsumes(ItemType other)`	Determine whether this ItemType subsumes another ItemType.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - ANY_ITEM
```
public static ItemType ANY_ITEM
```
    ItemType representing the type item(), that is, any item at all
  - ANY_NODE
```
public static ItemType ANY_NODE
```
    ItemType representing the type node(), that is, any node
  - ANY_ATOMIC_VALUE
```
public static ItemType ANY_ATOMIC_VALUE
```
    ItemType representing the type xs:anyAtomicType, that is, any atomic value
- Constructor Detail
  - ItemType
```
protected ItemType(ItemType underlyingType,
                   Processor processor)
```
- Method Detail
  - matches
```
public boolean matches(XdmItem item)
```
    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.
  - subsumes
```
public boolean subsumes(ItemType other)
```
    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
  getUnderlyingItemType public ItemType getUnderlyingItemType() Method to get the underlying Saxon implementation object This gives access to Saxon methods that may change from one release to another. Returns: the underlying Saxon implementation object getProcessor protected Processor getProcessor() Get the underlying Processor Returns: the processor used to create this ItemType, if any

Class ItemType

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

ANY_ITEM

ANY_NODE

ANY_ATOMIC_VALUE

Constructor Detail

ItemType

Method Detail

matches

subsumes

getUnderlyingItemType

getProcessor