org.picocontainer.gems.constraints
Class CollectionConstraint

java.lang.Object
  org.picocontainer.parameters.AbstractParameter
      org.picocontainer.parameters.CollectionComponentParameter
          org.picocontainer.gems.constraints.CollectionConstraint

All Implemented Interfaces:

Serializable, Constraint, Parameter

public final class CollectionConstraint
extends CollectionComponentParameter
implements Constraint

Constraint that collects/aggregates dependencies to as many components that satisfy the given constraint.

Author:

Nick Sieger, Jörg Schaible

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.picocontainer.Parameter

Parameter.DelegateResolver, Parameter.NotResolved, Parameter.Resolver, Parameter.ValueResolver

Field Summary

protected Constraint

constraint

Fields inherited from class org.picocontainer.parameters.CollectionComponentParameter

ARRAY, ARRAY_ALLOW_EMPTY

Fields inherited from interface org.picocontainer.Parameter

DEFAULT, ZERO

Constructor Summary

CollectionConstraint(Constraint constraint)

CollectionConstraint(Constraint constraint, boolean emptyCollection)

Method Summary

void	accept(PicoVisitor visitor)
boolean	evaluate(ComponentAdapter adapter) Evaluate whether the given component adapter matches this constraint.

Methods inherited from class org.picocontainer.parameters.CollectionComponentParameter

getMatchingComponentAdapters, resolve, verify

Methods inherited from class org.picocontainer.parameters.AbstractParameter

isResolvable, resolveInstance

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.picocontainer.Parameter

isResolvable, resolve, resolveInstance, verify

Field Detail

constraint

protected final Constraint constraint

Constructor Detail

CollectionConstraint

public CollectionConstraint(Constraint constraint)

CollectionConstraint

public CollectionConstraint(Constraint constraint,
                            boolean emptyCollection)

Method Detail

evaluate

public boolean evaluate(ComponentAdapter adapter)

Description copied from interface: Constraint

Evaluate whether the given component adapter matches this constraint.

Specified by:

evaluate in interface Constraint

Overrides:

evaluate in class CollectionComponentParameter

Parameters:

adapter - a ComponentAdapter value

Returns:

true if the adapter matches the constraint

accept

public void accept(PicoVisitor visitor)

Specified by:

accept in interface Parameter

Overrides:

accept in class CollectionComponentParameter