com.cronutils.model.field.expression

Class FieldExpression

java.lang.Object

com.cronutils.model.field.expression.FieldExpression

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

Always, And, Between, Every, On, QuestionMark

public abstract class FieldExpression
extends Object
implements Serializable

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
FieldExpression()

Method Summary

Modifier and Type	Method and Description
abstract FieldExpression	accept(FieldExpressionVisitor visitor) Accept a visitor to perform some action on the instance.
static FieldExpression	always()
And	and(FieldExpression exp)
abstract String	asString() Represents FieldExpression as string.
static FieldExpression	questionMark()

Methods inherited from class java.lang.Object

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

Constructor Detail

FieldExpression

public FieldExpression()

Method Detail

and

public And and(FieldExpression exp)

asString

public abstract String asString()

Represents FieldExpression as string.

Returns:

String representation, never null.

accept

public abstract FieldExpression accept(FieldExpressionVisitor visitor)

Accept a visitor to perform some action on the instance. Current instance is cloned, so that we ensure immutability. Clone of this instance is returned after visitor.visit(clone) was invoked.

Parameters:

visitor - - FieldExpressionVisitor instance, never null

Returns:

FieldExpression copied instance with visitor action performed.

always

public static FieldExpression always()

questionMark

public static FieldExpression questionMark()