ExpressionFactory (Oracle Fusion Middleware Java API Reference for Oracle WebCenter Portal)

java.lang.Object
- oracle.webcenter.portal.persistence.query.ExpressionFactory

public class ExpressionFactory
extends java.lang.Object

Factory used to create instances of expressions

Constructor Summary

Constructors
Constructor and Description

ExpressionFactory()

Constructors
Constructor and Description
`ExpressionFactory()`

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static Expression`	`and(Expression... expressions)` Creates an And expression
`static Expression`	`contains(Property property, java.lang.Object value)` Creates a Contains expression
`static Expression`	`equal(Property property, java.lang.Object value)` Creates an Equal expression
`static Expression`	`greaterThan(Property property, java.lang.Object value)` Creates a GreaterThan expression
`static Expression`	`in(Property property, java.lang.Object[] values)` Creates an In expression
`static Expression`	`isNotNull(Property property)` Creates an IsNotNull expression
`static Expression`	`isNull(Property property)` Creates an IsNull expression
`static <T extends PortalEntity> Expression`	`join(Reference<T> reference, Subquery<T> subquery)` Creates a Join expression
`static Expression`	`lessThan(Property property, java.lang.Object value)` Creates a LessThan expression
`static Expression`	`like(Property property, java.lang.Object value)` Creates a Like expression
`static Expression`	`merge(Expression... expressions)` Creates a new expression by ANDing the expressions.
`static Expression`	`not(Expression expression)` Creates an Not expression (i.e.
`static Expression`	`notEqual(Property property, java.lang.Object value)` Creates a NotEqual expression
`static Expression`	`or(Expression... expressions)` Creates an Or expression

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

- Constructor Detail
  - ExpressionFactory
```
public ExpressionFactory()
```
- Method Detail
  - and
```
public static Expression and(Expression... expressions)
```
    Creates an And expression
    
    Parameters:
    
    expressions - the sub expressions
    
    Returns:
    
    the And expression
  - or
```
public static Expression or(Expression... expressions)
```
    Creates an Or expression
    
    Parameters:
    
    expressions - the sub expressions
    
    Returns:
    
    the Or expression
  - not
```
public static Expression not(Expression expression)
```
    Creates an Not expression (i.e. an expression which inverts the sub expression)
    
    Parameters:
    
    expression - the sub expression
    
    Returns:
    
    the Not expression
  - equal
```
public static Expression equal(Property property,
                               java.lang.Object value)
```
    Creates an Equal expression
    
    Parameters:
    
    property - the property to compare
    
    value - the value to compare against
    
    Returns:
    
    the Equal expression
  - notEqual
```
public static Expression notEqual(Property property,
                                  java.lang.Object value)
```
    Creates a NotEqual expression
    
    Parameters:
    
    property - the property to compare
    
    value - the value to compare against
    
    Returns:
    
    the NotEqual expression
  - like
```
public static Expression like(Property property,
                              java.lang.Object value)
```
    Creates a Like expression
    
    Parameters:
    
    property - the property to compare
    
    value - the value to compare against
    
    Returns:
    
    the Like expression
  - contains
```
public static Expression contains(Property property,
                                  java.lang.Object value)
```
    Creates a Contains expression
    
    Parameters:
    
    property - the property to compare
    
    value - the value to compare against
    
    Returns:
    
    the Contains expression
  - isNull
```
public static Expression isNull(Property property)
```
    Creates an IsNull expression
    
    Parameters:
    
    property - the property to compare
    
    Returns:
    
    the IsNull expression
  - isNotNull
```
public static Expression isNotNull(Property property)
```
    Creates an IsNotNull expression
    
    Parameters:
    
    property - the property to compare
    
    Returns:
    
    the IsNotNull expression
  - lessThan
```
public static Expression lessThan(Property property,
                                  java.lang.Object value)
```
    Creates a LessThan expression
    
    Parameters:
    
    property - the property to compare
    
    value - the value to compare against
    
    Returns:
    
    the LessThan expression
  - greaterThan
```
public static Expression greaterThan(Property property,
                                     java.lang.Object value)
```
    Creates a GreaterThan expression
    
    Parameters:
    
    property - the property to compare
    
    value - the value to compare against
    
    Returns:
    
    the GreaterThan expression
  - in
```
public static Expression in(Property property,
                            java.lang.Object[] values)
```
    Creates an In expression
    
    Parameters:
    
    property - the property to compare
    
    values - the value to compare against
    
    Returns:
    
    the In expression
  - join
```
public static <T extends PortalEntity> Expression join(Reference<T> reference,
                                                       Subquery<T> subquery)
```
    Creates a Join expression
    
    Parameters:
    
    reference - the reference to join
    
    subquery - the subquery to join with
    
    Returns:
    
    the Join expression
  - merge
```
public static Expression merge(Expression... expressions)
```
    Creates a new expression by ANDing the expressions. Note that null expressions will be ignored.
    
    Parameters:
    
    expressions - the sub expressions
    
    Returns:
    
    the new expression or null if there were no non-null expressions

Class ExpressionFactory

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

ExpressionFactory

Method Detail

and

or

not

equal

notEqual

like

contains

isNull

isNotNull

lessThan

greaterThan

in

join

merge