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java.lang.Object y.io.graphml.Future
public class Future
A helper holder class that can contain a getValue()
.
Typically hasValue()
will be false
until at a later point in time onValueDetermined(Object)
is called and the getValue()
and hasValue()
properties are being updated.
Constructor Summary | |
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Future()
Initializes a new instance of the Future class. |
|
Future(java.lang.Object defaultValue)
Initializes a new instance of the Future class. |
Method Summary | |
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java.lang.Object |
getValue()
Returns the value of this future. |
boolean |
hasValue()
Gets a value indicating whether this instance has been assigned a getValue() . |
void |
onValueDetermined(java.lang.Object value)
Called when the value property of this future has been
determined. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public Future()
Future
class.
public Future(java.lang.Object defaultValue)
Future
class.
Note that hasValue()
will still be false
until
onValueDetermined(Object)
is called.
defaultValue
- The default value.Method Detail |
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public java.lang.Object getValue()
hasValue()
yields true
.
hasValue()
public boolean hasValue()
getValue()
.
true
if this instance has been assigned a value;
false
otherwise.onValueDetermined(Object)
,
getValue()
public void onValueDetermined(java.lang.Object value)
value
property of this future has been
determined.
This will set the hasValue()
property to true
and
assign the value
property.
value
- The value.getValue()
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