Enum Class FilterPredicate.Operator

java.lang.Object

java.lang.Enum<FilterPredicate.Operator>

dev.hardwood.reader.FilterPredicate.Operator

All Implemented Interfaces:

Serializable, Comparable<FilterPredicate.Operator>, Constable

Enclosing interface:

FilterPredicate

public static enum FilterPredicate.Operator
extends Enum<FilterPredicate.Operator>

Nested Class Summary

Nested classes/interfaces inherited from class Enum

Enum.EnumDesc<E>

Enum Constant Summary

Enum Constants

Enum Constant	Description
EQ
GT
GT_EQ
LT
LT_EQ
NOT_EQ

Method Summary

Modifier and Type	Method	Description
FilterPredicate.Operator	invert()	Returns the logical inverse of this operator, used to push NOT through leaf predicates.
static FilterPredicate.Operator	valueOf(String name)	Returns the enum constant of this class with the specified name.
static FilterPredicate.Operator[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

EQ

public static final FilterPredicate.Operator EQ

NOT_EQ

public static final FilterPredicate.Operator NOT_EQ

LT

public static final FilterPredicate.Operator LT

LT_EQ

public static final FilterPredicate.Operator LT_EQ

GT

public static final FilterPredicate.Operator GT

GT_EQ

public static final FilterPredicate.Operator GT_EQ

Method Details

values

public static FilterPredicate.Operator[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static FilterPredicate.Operator valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null

invert

public FilterPredicate.Operator invert()

Returns the logical inverse of this operator, used to push NOT through leaf predicates. For example, NOT(GT(x, 5)) becomes LT_EQ(x, 5).

NOT_EQ.invert() returns EQ, which enables full pushdown (unlike the conservative fallback for arbitrary NOT predicates).