All Superinterfaces:

Expression<Boolean>, Selection<Boolean>, TupleElement<Boolean>

All Known Subinterfaces:

CriteriaBuilder.In<T>
```
public interface Predicate
extends Expression<Boolean>
```
The type of a simple or compound predicate: a conjunction or disjunction of restrictions. A simple predicate is considered to be a conjunction with a single conjunct.

Since:

Java Persistence 2.0

Nested Class Summary

Nested Classes
Modifier and Type Interface and Description

static class Predicate.BooleanOperator

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Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`List<Expression<Boolean>>`	`getExpressions()` Return the top-level conjuncts or disjuncts of the predicate.
`Predicate.BooleanOperator`	`getOperator()` Return the boolean operator for the predicate.
`boolean`	`isNegated()` Whether the predicate has been created from another predicate by applying the `Predicate.not()` method or the `CriteriaBuilder.not()` method.
`Predicate`	`not()` Create a negation of the predicate.

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Methods inherited from interface javax.persistence.criteria.Expression
as, in, in, in, in, isNotNull, isNull

Methods inherited from interface javax.persistence.criteria.Selection
alias, getCompoundSelectionItems, isCompoundSelection

Methods inherited from interface javax.persistence.TupleElement
getAlias, getJavaType

- Method Detail
  - getOperator
```
Predicate.BooleanOperator getOperator()
```
    Return the boolean operator for the predicate. If the predicate is simple, this is AND.
    
    Returns:
    
    boolean operator for the predicate
  - isNegated
```
boolean isNegated()
```
    Whether the predicate has been created from another predicate by applying the Predicate.not() method or the CriteriaBuilder.not() method.
    
    Returns:
    
    boolean indicating if the predicate is a negated predicate
  - getExpressions
```
List<Expression<Boolean>> getExpressions()
```
    Return the top-level conjuncts or disjuncts of the predicate. Returns empty list if there are no top-level conjuncts or disjuncts of the predicate. Modifications to the list do not affect the query.
    
    Returns:
    
    list of boolean expressions forming the predicate
  - not
```
Predicate not()
```
    Create a negation of the predicate.
    
    Returns:
    
    negated predicate

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