Package org.apache.iceberg.expressions

Class BoundUnaryPredicate<T>

java.lang.Object

org.apache.iceberg.expressions.Predicate<T,BoundTerm<T>>

org.apache.iceberg.expressions.BoundPredicate<T>

org.apache.iceberg.expressions.BoundUnaryPredicate<T>

All Implemented Interfaces:

Serializable, Bound<Boolean>, Expression

public class BoundUnaryPredicate<T>
extends BoundPredicate<T>

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.iceberg.expressions.Expression

Expression.Operation

Method Summary

Modifier and Type	Method	Description
BoundUnaryPredicate<T>	asUnaryPredicate()
boolean	isEquivalentTo(Expression other)	Returns whether this expression will accept the same values as another.
boolean	isUnaryPredicate()
Expression	negate()	Returns the negation of this expression, equivalent to not(this).
boolean	test(T value)
String	toString()

Methods inherited from class org.apache.iceberg.expressions.BoundPredicate

asLiteralPredicate, asSetPredicate, eval, isLiteralPredicate, isSetPredicate, ref, test

Methods inherited from class org.apache.iceberg.expressions.Predicate

op, term

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Details

negate

public Expression negate()

Description copied from interface: Expression

Returns the negation of this expression, equivalent to not(this).

isUnaryPredicate

public boolean isUnaryPredicate()

Overrides:

isUnaryPredicate in class BoundPredicate<T>

asUnaryPredicate

public BoundUnaryPredicate<T> asUnaryPredicate()

Overrides:

asUnaryPredicate in class BoundPredicate<T>

test

public boolean test(T value)

Specified by:

test in class BoundPredicate<T>

isEquivalentTo

public boolean isEquivalentTo(Expression other)

Description copied from interface: Expression

Returns whether this expression will accept the same values as another.

If this returns true, the expressions are guaranteed to return the same evaluation for the same input. However, if this returns false the expressions may return the same evaluation for the same input. That is, expressions may be equivalent even if this returns false.

For best results, rewrite not and bind expressions before calling this method.

Parameters:

other - another expression

Returns:

true if the expressions are equivalent

toString

public String toString()

Overrides:

toString in class Object