org.biojava.bio

Class CollectionConstraint.And

java.lang.Object

org.biojava.bio.CollectionConstraint.And

All Implemented Interfaces:

CollectionConstraint

Enclosing interface:

CollectionConstraint

public static class CollectionConstraint.And
extends Object
implements CollectionConstraint

A collection constraint that accpepts collections 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, Thomas Down

Nested Class Summary

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

CollectionConstraint.AllValuesIn, CollectionConstraint.And, CollectionConstraint.Contains, CollectionConstraint.Or

Field Summary

Fields inherited from interface org.biojava.bio.CollectionConstraint

ANY, EMPTY, NONE

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
boolean	accept(Object object) accept returns true if the value fulfills the constraint.
CollectionConstraint	getChild1() Get the first child CollectionConstraint.
CollectionConstraint	getChild2() Get the seccond child CollectionConstraint.
boolean	subConstraintOf(CollectionConstraint pc) subConstraintOf returns true if the constraint is a sub-constraint.
String	toString()
boolean	validateAddValue(Collection oldcoll, Object newvalue) Return true iff the Collection formed by adding newValue to current would be accepted by this constraint.
boolean	validateRemoveValue(Collection oldcoll, Object victim) Return true iff the Collection formed by removing newValue from current would be accepted by this constraint.

Methods inherited from class java.lang.Object

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

Constructor Detail

And

public And(CollectionConstraint c1,
           CollectionConstraint c2)

Create a new And from two child constraints.

Parameters:

c1 - the first child

c2 - the seccond child

Method Detail

getChild1

public CollectionConstraint getChild1()

Get the first child CollectionConstraint.

Returns:

the first child CollectionConstraint

getChild2

public CollectionConstraint getChild2()

Get the seccond child CollectionConstraint.

Returns:

the seccond child CollectionConstraint

accept

public boolean accept(Object object)

Description copied from interface: CollectionConstraint

accept returns true if the value fulfills the constraint.

Specified by:

accept in interface CollectionConstraint

Parameters:

object - a Collection to check.

Returns:

true if the values are acceptable powerUser Manually compare items with the CollectionConstraint. Node: this will ususaly be done for you in an AnnotationType instance

subConstraintOf

public boolean subConstraintOf(CollectionConstraint pc)

Description copied from interface: CollectionConstraint

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, CollectionConstraint.ByClass will infer subConstraintOf by looking at the possible class of all items matching subConstraint.

Specified by:

subConstraintOf in interface CollectionConstraint

Parameters:

pc - a CollectionConstraint to check.

Returns:

a boolean. Usefull 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.

validateAddValue

public boolean validateAddValue(Collection oldcoll,
                                Object newvalue)

Description copied from interface: CollectionConstraint

Return true iff the Collection formed by adding newValue to current would be accepted by this constraint. Implementations may not assume that current is valid.

Specified by:

validateAddValue in interface CollectionConstraint

Parameters:

oldcoll - a Collection containing the current values

newvalue - the new value to add

Returns:

true if adding the new value will result in an acceptable property

validateRemoveValue

public boolean validateRemoveValue(Collection oldcoll,
                                   Object victim)

Description copied from interface: CollectionConstraint

Return true iff the Collection formed by removing newValue from current would be accepted by this constraint. Implementations may not assume that current is valid. However, current will already have been checked to ensure that it contains victim.

Specified by:

validateRemoveValue in interface CollectionConstraint

Parameters:

oldcoll - a Collection containing the current values

victim - the value to remove

Returns:

true if removing the victim will result in an acceptable property value set

toString

public String toString()

Overrides:

toString in class Object