weblogic.wsee.policy.framework
Class PolicyAlternative

java.lang.Object
  weblogic.wsee.policy.framework.PolicyAlternative

All Implemented Interfaces:

Externalizable, Serializable

public class PolicyAlternative
extends Object
implements Externalizable

Represents a set of policy assertions that are a single policy alternative in a normal form policy.

See Also:

for discussion of normal form., Serialized Form

EMPTY_ALTERNATIVE

public static final PolicyAlternative EMPTY_ALTERNATIVE

PolicyAlternative

public PolicyAlternative()

getAssertions

public Set getAssertions()

isTrue

public boolean isTrue(PolicyAssertion a)

Is the policy assertion present in this policy alternative?

Parameters:

a - the assertion being checked

Returns:

true if the assertion is present, false if it is not.

getAssertions

public Set getAssertions(Class assertionClass)

Return the subset of policy assertions present in this policy alternative that are instances of a given class

Parameters:

assertionClass - the class of assertions that are being checked

isEmpty

public boolean isEmpty()

Return whether this policy alternative is empty; ie., does not assert any assertions

Returns:

whether there are any assertions asserted in this alternative

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

implement readExternal() of Externalizable interface

Specified by:

readExternal in interface Externalizable

Parameters:

in -

Throws:

IOException

ClassNotFoundException

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

implement writeExternal() of Externalizable interface

Specified by:

writeExternal in interface Externalizable

Parameters:

out -

Throws:

IOException

clone

public PolicyAlternative clone()

clone the PolicyALternative object

Overrides:

clone in class Object

Returns:

the new object, null for IOException or ClassNotFoundException