PropertyExistenceImpl (Jackrabbit Oak 1.44.0 API)

java.lang.Object
- org.apache.jackrabbit.oak.query.ast.ConstraintImpl
- - org.apache.jackrabbit.oak.query.ast.PropertyExistenceImpl

public class PropertyExistenceImpl
extends ConstraintImpl

A condition to check if the property exists ("is not null").

Field Summary

Fields
Modifier and Type Field and Description

protected QueryImpl query

Fields
Modifier and Type	Field and Description
`protected QueryImpl`	`query`

Constructor Summary

Constructors
Constructor and Description
`PropertyExistenceImpl(SelectorImpl selector, java.lang.String selectorName, java.lang.String propertyName)`
`PropertyExistenceImpl(java.lang.String selectorName, java.lang.String propertyName)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`bindSelector(SourceImpl source)`
`protected PropertyValue`	`convertValueToType(PropertyValue v, PropertyValue targetType)`
`org.apache.jackrabbit.oak.query.ast.AstElement`	`copyOf()`
`boolean`	`equals(java.lang.Object obj)`
`boolean`	`evaluate()` Evaluate the result using the currently set values.
`protected java.lang.String`	`getLocalPath(java.lang.String path)` Calculate the session local path (the path excluding the workspace name) if possible.
`java.util.Set<PropertyExistenceImpl>`	`getPropertyExistenceConditions()` Get the set of property existence conditions that can be derived for this condition.
`java.util.Set<SelectorImpl>`	`getSelectors()` Get the set of selectors for the given condition.
`int`	`hashCode()`
`protected java.lang.String`	`normalizePath(java.lang.String path)` Validate and normalize the path.
`protected java.lang.String`	`normalizePropertyName(java.lang.String propertyName)` Normalize the property name (including namespace remapping).
`protected java.lang.String`	`protect(java.lang.Object expression)`
`protected java.lang.String`	`quote(java.lang.String pathOrName)`
`protected java.lang.String`	`quoteJson(java.lang.String string)`
`void`	`restrict(FilterImpl f)` Apply the condition to the filter, further restricting the filter if possible.
`void`	`restrictPushDown(SelectorImpl s)` Push as much of the condition down to this selector, further restricting the selector condition if possible.
`void`	`setQuery(QueryImpl query)`
`java.lang.String`	`toString()`

Methods inherited from class org.apache.jackrabbit.oak.query.ast.ConstraintImpl
containsUnfilteredFullTextCondition, convertToUnion, evaluateStop, getFullTextConstraint, requiresFullTextIndex, simplify

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

- Field Detail
  - query
```
protected QueryImpl query
```
- Constructor Detail
  - PropertyExistenceImpl
```
public PropertyExistenceImpl(SelectorImpl selector,
                             java.lang.String selectorName,
                             java.lang.String propertyName)
```
  - PropertyExistenceImpl
```
public PropertyExistenceImpl(java.lang.String selectorName,
                             java.lang.String propertyName)
```
- Method Detail
  - evaluate
```
public boolean evaluate()
```
    Description copied from class: ConstraintImpl
    
    Evaluate the result using the currently set values.
    
    Specified by:
    
    evaluate in class ConstraintImpl
    
    Returns:
    
    true if the constraint matches
  - getPropertyExistenceConditions
```
public java.util.Set<PropertyExistenceImpl> getPropertyExistenceConditions()
```
    Description copied from class: ConstraintImpl
    
    Get the set of property existence conditions that can be derived for this condition. For example, for the condition "x=1 or x=2", the property existence condition is "x is not null". For the condition "x=1 or y=2", there is no such condition. For the condition "x=1 and y=1", there are two (x is not null, and y is not null).
    
    Specified by:
    
    getPropertyExistenceConditions in class ConstraintImpl
    
    Returns:
    
    the common property existence condition (possibly empty)
  - getSelectors
```
public java.util.Set<SelectorImpl> getSelectors()
```
    Description copied from class: ConstraintImpl
    
    Get the set of selectors for the given condition.
    
    Specified by:
    
    getSelectors in class ConstraintImpl
    
    Returns:
    
    the set of selectors (possibly empty)
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object
  - bindSelector
```
public void bindSelector(SourceImpl source)
```
  - restrict
```
public void restrict(FilterImpl f)
```
    Description copied from class: ConstraintImpl
    
    Apply the condition to the filter, further restricting the filter if possible. This may also verify the data types are compatible, and that paths are valid.
    
    Specified by:
    
    restrict in class ConstraintImpl
    
    Parameters:
    
    f - the filter
  - restrictPushDown
```
public void restrictPushDown(SelectorImpl s)
```
    Description copied from class: ConstraintImpl
    
    Push as much of the condition down to this selector, further restricting the selector condition if possible. This is important for a join: for example, the query "select * from a inner join b on a.x=b.x where a.y=1 and b.y=1", the condition "a.y=1" can be pushed down to "a", and the condition "b.y=1" can be pushed down to "b". That means it is possible to use an index in this case.
    
    Specified by:
    
    restrictPushDown in class ConstraintImpl
    
    Parameters:
    
    s - the selector
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class ConstraintImpl
  - equals
```
public boolean equals(java.lang.Object obj)
```
    Overrides:
    
    equals in class ConstraintImpl
  - copyOf
```
public org.apache.jackrabbit.oak.query.ast.AstElement copyOf()
```
    Returns:
    
    a clone of self. Default implementation in AstElement returns same reference to this.
  - protect
```
protected java.lang.String protect(java.lang.Object expression)
```
  - quote
```
protected java.lang.String quote(java.lang.String pathOrName)
```
  - quoteJson
```
protected java.lang.String quoteJson(java.lang.String string)
```
  - setQuery
```
public void setQuery(QueryImpl query)
```
  - normalizePropertyName
```
protected java.lang.String normalizePropertyName(java.lang.String propertyName)
```
    Normalize the property name (including namespace remapping). Asterisks are kept.
    
    Parameters:
    
    propertyName - the property name to normalize
    
    Returns:
    
    the normalized (oak-) property name
  - normalizePath
```
protected java.lang.String normalizePath(java.lang.String path)
```
    Validate and normalize the path.
    
    Parameters:
    
    path - the path to validate
    
    Returns:
    
    the validated and normalized path
  - convertValueToType
```
protected PropertyValue convertValueToType(PropertyValue v,
                                           PropertyValue targetType)
```
  - getLocalPath
```
protected java.lang.String getLocalPath(java.lang.String path)
```
    Calculate the session local path (the path excluding the workspace name) if possible.
    
    Parameters:
    
    path - the absolute path
    
    Returns:
    
    the session local path, or null if not within this workspace

Class PropertyExistenceImpl

Field Summary

Constructor Summary

Method Summary

Methods inherited from class org.apache.jackrabbit.oak.query.ast.ConstraintImpl

Methods inherited from class java.lang.Object

Field Detail

query

Constructor Detail

PropertyExistenceImpl

PropertyExistenceImpl

Method Detail

evaluate

getPropertyExistenceConditions

getSelectors

toString

bindSelector

restrict

restrictPushDown

hashCode

equals

copyOf

protect

quote

quoteJson

setQuery

normalizePropertyName

normalizePath

convertValueToType

getLocalPath