AbstractTriStatePredicate (java-support 8.0.0 API)

java.lang.Object
- net.shibboleth.utilities.java.support.logic.AbstractTriStatePredicate<T>

Type Parameters:

T - the type to which the predicate is applied

All Implemented Interfaces:

Predicate<T>, Predicate<T>
```
public abstract class AbstractTriStatePredicate<T>
extends Object
implements Predicate<T>
```
A base Predicate implementation which provides support for cases where the predicate can not meaningfully evaluate the input. The flags on this class allow translating these cases to a boolean true or false as required by the predicate interface.

Field Summary

Fields
Modifier and Type	Field	Description
`private boolean`	`nullInputSatisfies`	Flag indicating whether the null input case is treated as satisfying the predicate.
`private boolean`	`unevaluableSatisfies`	Flag indicating whether the general unevaluable case is treated as satisfying the predicate.

Constructor Summary

Constructors
Constructor Description

AbstractTriStatePredicate()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`isNullInputSatisfies()`	Get the flag indicating whether a null input satisfies the predicate.
`boolean`	`isUnevaluableSatisfies()`	Get the flag indicating whether a general 'unevaluable' input satisfies the predicate.
`void`	`setNullInputSatisfies(boolean flag)`	Set the flag indicating whether a null input satisfies the predicate.
`void`	`setUnevaluableSatisfies(boolean flag)`	Set the flag indicating whether a general 'unevaluable' input satisfies the predicate.

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

Methods inherited from interface java.util.function.Predicate
and, negate, or, test

Methods inherited from interface net.shibboleth.utilities.java.support.logic.Predicate
apply

- Field Detail
  - nullInputSatisfies
```
private boolean nullInputSatisfies
```
    Flag indicating whether the null input case is treated as satisfying the predicate.
  - unevaluableSatisfies
```
private boolean unevaluableSatisfies
```
    Flag indicating whether the general unevaluable case is treated as satisfying the predicate.
- Constructor Detail
  - AbstractTriStatePredicate
```
public AbstractTriStatePredicate()
```
- Method Detail
  - isNullInputSatisfies
```
public boolean isNullInputSatisfies()
```
    Get the flag indicating whether a null input satisfies the predicate.
    
    Returns:
    
    true if should satisfy, false otherwise
  - setNullInputSatisfies
```
public void setNullInputSatisfies(boolean flag)
```
    Set the flag indicating whether a null input satisfies the predicate.
    
    Parameters:
    
    flag - true if should satisfy, false otherwise
  - isUnevaluableSatisfies
```
public boolean isUnevaluableSatisfies()
```
    Get the flag indicating whether a general 'unevaluable' input satisfies the predicate.
    
    Returns:
    
    true if should satisfy, false otherwise
  - setUnevaluableSatisfies
```
public void setUnevaluableSatisfies(boolean flag)
```
    Set the flag indicating whether a general 'unevaluable' input satisfies the predicate.
    
    Parameters:
    
    flag - true if should satisfy, false otherwise