public class IsEventFrom extends java.lang.Object implements Constraint
Constructor and Description |
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IsEventFrom(java.lang.Class eventClass,
java.lang.Object source)
Constructs an IsEventFrom predicate that returns true for any object
derived from event_class announced by source.
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IsEventFrom(java.lang.Object source)
Constructs an IsEventFrom predicate that returns true for any object
derived from
EventObject announced by source
. |
Modifier and Type | Method and Description |
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java.lang.StringBuffer |
describeTo(java.lang.StringBuffer buffer)
Appends the description of this object to the buffer.
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boolean |
eval(java.lang.Object o)
Evaluates the constraint for argument o.
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public IsEventFrom(java.lang.Object source)
EventObject
announced by source
.public IsEventFrom(java.lang.Class eventClass, java.lang.Object source)
public boolean eval(java.lang.Object o)
Constraint
eval
in interface Constraint
o
- the object against which the constraint is evaluated.true
if o meets the constraint,
false
if it does not.public java.lang.StringBuffer describeTo(java.lang.StringBuffer buffer)
SelfDescribing
describeTo
in interface SelfDescribing
buffer
- The buffer that the description is appended to.