Package de.espirit.or.query

Class AbstractConstraint

java.lang.Object

de.espirit.or.query.AbstractConstraint

All Implemented Interfaces:

AttributeConstraint, Constraint, Serializable, Cloneable

Direct Known Subclasses:

Compare, IsNotNull, IsNull

public abstract class AbstractConstraint
extends Object
implements AttributeConstraint

The base class for all implementations of Constraint which define an attribute based filter.

Since:

4.0.17

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface de.espirit.or.query.Constraint

Constraint.Type

Constructor Summary

Constructors

Constructor	Description
AbstractConstraint()

Method Summary

Modifier and Type	Method	Description
final @NotNull String	getAttributeName()	Return the name of the attribute this constraint belongs to.
abstract Constraint.Type	getType()	Return the type of this constraint.
boolean	isEmpty()	Check if this is an empty constraint.

Methods inherited from class java.lang.Object

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

Constructor Details

AbstractConstraint

public AbstractConstraint()

Method Details

getType

public abstract Constraint.Type getType()

Return the type of this constraint.

Specified by:

getType in interface Constraint

Returns:

the type of this constraint.

Since:

4.0.17

getAttributeName

@NotNull
public final @NotNull String getAttributeName()

Return the name of the attribute this constraint belongs to.

Specified by:

getAttributeName in interface AttributeConstraint

Returns:

the name of the attribute of this constraint

Since:

4.0.17

isEmpty

public boolean isEmpty()

Check if this is an empty constraint. Empty constraints could be omitted without changing the query result.

Specified by:

isEmpty in interface Constraint

Returns:

true if the constraint is empty, i.e. removing the constraint would not change the query result.

Since:

5.0.102