Flatten

java.lang.Object
- org.projog.core.predicate.AbstractSingleResultPredicate
- - org.projog.core.predicate.builtin.list.Flatten

All Implemented Interfaces:

KnowledgeBaseConsumer, PredicateFactory
```
public final class Flatten
extends AbstractSingleResultPredicate
```
flatten(X,Y) - flattens a nested list.
Flattens the nested list represented by X and attempts to unify it with Y.

Constructor Summary

Constructors
Constructor Description

Flatten()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected boolean`	`evaluate(Term original, Term expected)`
`private java.util.List<Term>`	`flattenList(Term input)`

Methods inherited from class org.projog.core.predicate.AbstractSingleResultPredicate
evaluate, evaluate, evaluate, evaluate, evaluate, getArithmeticOperators, getFileHandles, getKnowledgeBase, getOperands, getPredicate, getPredicates, getProjogListeners, getSpyPoints, getTermFormatter, init, isRetryable, setKnowledgeBase

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

Methods inherited from interface org.projog.core.predicate.PredicateFactory
isAlwaysCutOnBacktrack

Constructor Detail
- Flatten
```
public Flatten()
```

Method Detail

evaluate

protected boolean evaluate(Term original,
                           Term expected)

Overrides:: evaluate in class AbstractSingleResultPredicate

flattenList

private java.util.List<Term> flattenList(Term input)