java.lang.Object
- net.sf.saxon.expr.parser.ContextItemStaticInfo

Direct Known Subclasses:

ContextItemStaticInfoEE
```
public class ContextItemStaticInfo
extends java.lang.Object
```
A data structure that represents the required type of the context item, together with information about whether it is known to be present or absent or whether it is not known statically whether it is present or absent.

Field Summary

Fields
Modifier and Type Field Description

static ContextItemStaticInfo ABSENT

static ContextItemStaticInfo DEFAULT
Default information when nothing else is known

Constructor Summary

Constructors
Constructor Description

ContextItemStaticInfo(ItemType itemType, boolean maybeUndefined)
Create a ContextItemStaticInfo

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`UType`	`getContextItemUType()`	Get the static type of the context item as a UType
`Expression`	`getContextSettingExpression()`
`ItemType`	`getItemType()`	Get the static type of the context item.
`boolean`	`isParentless()`
`boolean`	`isPossiblyAbsent()`	Ask whether it is possible that the context item is absent
`boolean`	`isStrictStreamabilityRules()`
`void`	`setContextPostureGrounded()`	Set streaming posture.
`void`	`setContextPostureStriding()`	Set streaming posture.
`void`	`setContextSettingExpression(Expression setter)`
`void`	`setParentless(boolean parentless)`

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

- Field Detail
  - DEFAULT
```
public static final ContextItemStaticInfo DEFAULT
```
    Default information when nothing else is known
  - ABSENT
```
public static final ContextItemStaticInfo ABSENT
```
- Constructor Detail
  - ContextItemStaticInfo
```
public ContextItemStaticInfo(ItemType itemType,
                             boolean maybeUndefined)
```
    Create a ContextItemStaticInfo
    
    Parameters:
    
    itemType - the item type of the context item. If the context item is absent, set this to ErrorType.getInstance().
    
    maybeUndefined - set to true if it is possible (or certain) that the context item will be absent.
- Method Detail
  - setContextSettingExpression
```
public void setContextSettingExpression(Expression setter)
```
  - getContextSettingExpression
```
public Expression getContextSettingExpression()
```
  - getItemType
```
public ItemType getItemType()
```
    Get the static type of the context item. If the context item is known to be undefined, the returned value is
    
    Returns:
    
    the static context item type
  - getContextItemUType
```
public UType getContextItemUType()
```
    Get the static type of the context item as a UType
    
    Returns:
    
    the static context item type
  - isPossiblyAbsent
```
public boolean isPossiblyAbsent()
```
    Ask whether it is possible that the context item is absent
    
    Returns:
    
    true if the context item might be absent
  - setContextPostureStriding
```
public void setContextPostureStriding()
```
    Set streaming posture. The Saxon-HE version of this method has no effect.
  - setContextPostureGrounded
```
public void setContextPostureGrounded()
```
    Set streaming posture. The Saxon-HE version of this method has no effect.
  - isStrictStreamabilityRules
```
public boolean isStrictStreamabilityRules()
```
  - setParentless
```
public void setParentless(boolean parentless)
```
  - isParentless
```
public boolean isParentless()
```

Modifier and Type	Field	Description
`static ContextItemStaticInfo`	`ABSENT`
`static ContextItemStaticInfo`	`DEFAULT`	Default information when nothing else is known

Class ContextItemStaticInfo

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

DEFAULT

ABSENT

Constructor Detail

ContextItemStaticInfo

Method Detail

setContextSettingExpression

getContextSettingExpression

getItemType

getContextItemUType

isPossiblyAbsent

setContextPostureStriding

setContextPostureGrounded

isStrictStreamabilityRules

setParentless

isParentless