org.biojava.bio

Class PropertyConstraint.And

java.lang.Object

org.biojava.bio.PropertyConstraint.And

All Implemented Interfaces:

PropertyConstraint

Enclosing interface:

PropertyConstraint

public static class PropertyConstraint.And
extends Object
implements PropertyConstraint

A property constraint that accpepts items iff they are accepted by both child constraints. This effectively matches the intersection of the items matched by the two constraints. Use this to combine multiple constraints. You can make one or both of the children And instances if you need a tighter intersection.

Author:

Matthew Pocock

Nested Class Summary

Nested classes/interfaces inherited from interface org.biojava.bio.PropertyConstraint

PropertyConstraint.And, PropertyConstraint.ByAnnotationType, PropertyConstraint.ByClass, PropertyConstraint.Enumeration, PropertyConstraint.ExactValue, PropertyConstraint.Or

Field Summary

Fields inherited from interface org.biojava.bio.PropertyConstraint

ANY, NONE

Constructor Summary

Constructors

Constructor and Description
PropertyConstraint.And(PropertyConstraint c1, PropertyConstraint c2) Create a new And from two child constraints.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	accept(Object object) accept returns true if the value fulfills the constraint.
PropertyConstraint	getChild1() Get the first child PropertyConstraint.
PropertyConstraint	getChild2() Get the seccond child PropertyConstraint.
boolean	subConstraintOf(PropertyConstraint pc) subConstraintOf returns true if the constraint is a sub-constraint.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

PropertyConstraint.And

public PropertyConstraint.And(PropertyConstraint c1,
                      PropertyConstraint c2)

Create a new And from two child constraints.

Parameters:

c1 - the first child

c2 - the seccond child

Method Detail

getChild1

public PropertyConstraint getChild1()

Get the first child PropertyConstraint.

Returns:

the first child PropertyConstraint

getChild2

public PropertyConstraint getChild2()

Get the seccond child PropertyConstraint.

Returns:

the seccond child PropertyConstraint

accept

public boolean accept(Object object)

Description copied from interface: PropertyConstraint

accept returns true if the value fulfills the constraint. Manually compare items with the PropertyConstraint. Node: this will ususaly be done for you in an AnnotationType instance Use for implementing accept() on AnnotatoinType

Specified by:

accept in interface PropertyConstraint

Parameters:

object - an Object to check.

Returns:

a boolean.

subConstraintOf

public boolean subConstraintOf(PropertyConstraint pc)

Description copied from interface: PropertyConstraint

subConstraintOf returns true if the constraint is a sub-constraint.

A pair of constraints super and sub are in a superConstraint/subConstraint relationship if every object accepted by sub is also accepted by super. To put it another way, if instanceOf was used as a set-membership indicator function over some set of objects, then the set produced by super would be a superset of that produced by sub.

It is not expected that constraints will neccesarily maintain references to super/sub types. It will be more usual to infer this relationship by introspecting the constraints themselves. For example, PropertyConstraint.ByClass will infer subConstraintOf by looking at the possible class of all items matching subConstraint.

Useful when attempting to compare two constraints to see if it is necisary to retain both. You may want to check the more general or the more specific constraint only.

Specified by:

subConstraintOf in interface PropertyConstraint

Parameters:

pc - a PropertyConstraint to check.

Returns:

a boolean.

toString

public String toString()

Overrides:

toString in class Object