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

```
public interface Visitor
```
Visitor interface implemented by a class used to interpret an expression

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`void`	`and(And and)` Handles an And expression
`void`	`contains(Contains contains)` Handles a Contains expression.
`void`	`equal(Equal equal)` Handles an Equal expression
`void`	`greaterThan(GreaterThan greaterThan)` Handles a LessThan expression
`void`	`in(In in)` Handles an In expression
`void`	`isNotNull(IsNotNull isNotNull)` Handles an IsNotNull expression
`void`	`isNull(IsNull isNull)` Handles an IsNull expression
`<T extends PortalEntity> void`	`join(Join<T> join)` Handles a Join expression
`void`	`lessThan(LessThan lessThan)` Handles a LessThan expression
`void`	`like(Like like)` Handles a Like expression.
`void`	`not(Not not)` Handles a Not expression
`void`	`notEqual(NotEqual notEqual)` Handles a NotEqual expression
`void`	`or(Or or)` Handles an Or expression

- Method Detail
  - and
```
void and(And and)
```
    Handles an And expression
    
    Parameters:
    
    and - the And expression
  - or
```
void or(Or or)
```
    Handles an Or expression
    
    Parameters:
    
    or - the Or expression
  - not
```
void not(Not not)
```
    Handles a Not expression
    
    Parameters:
    
    not - the Not expression
  - equal
```
void equal(Equal equal)
```
    Handles an Equal expression
    
    Parameters:
    
    equal - the Equal expression
  - notEqual
```
void notEqual(NotEqual notEqual)
```
    Handles a NotEqual expression
    
    Parameters:
    
    notEqual - the NotEqual expression
  - like
```
void like(Like like)
```
    Handles a Like expression. Is case insensitive.
    
    Parameters:
    
    like - the Like expression
  - contains
```
void contains(Contains contains)
```
    Handles a Contains expression. Is case insensitive.
    
    Parameters:
    
    contains - the Contains expression
  - isNotNull
```
void isNotNull(IsNotNull isNotNull)
```
    Handles an IsNotNull expression
    
    Parameters:
    
    isNotNull - the IsNotNull expression
  - isNull
```
void isNull(IsNull isNull)
```
    Handles an IsNull expression
    
    Parameters:
    
    isNull - the IsNull expression
  - lessThan
```
void lessThan(LessThan lessThan)
```
    Handles a LessThan expression
    
    Parameters:
    
    lessThan - the LessThan expression
  - greaterThan
```
void greaterThan(GreaterThan greaterThan)
```
    Handles a LessThan expression
    
    Parameters:
    
    greaterThan - the LessThan expression
  - in
```
void in(In in)
```
    Handles an In expression
    
    Parameters:
    
    in - the In expression
  - join
```
<T extends PortalEntity> void join(Join<T> join)
```
    Handles a Join expression
    
    Parameters:
    
    join - the Join expression

Interface Visitor

Method Summary

Method Detail

and

or

not

equal

notEqual

like

contains

isNotNull

isNull

lessThan

greaterThan

in

join