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java.lang.Objectorg.apache.jdo.impl.jdoql.scope.UNDEFINED
An instance of this class represents an undefined value in a ValueTable (ParameterTable or VariableTable).
Field Summary | |
private static UNDEFINED |
undefined
The singleton UNDEFINED instance. |
Constructor Summary | |
private |
UNDEFINED()
Creates new UNDEFINED. |
Method Summary | |
static UNDEFINED |
getInstance()
Get an instance of UNDEFINED |
java.lang.String |
toString()
Returns a string representation of an UNDEFINED instance. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
private static UNDEFINED undefined
Constructor Detail |
private UNDEFINED()
getInstance()
should be used.
Method Detail |
public static UNDEFINED getInstance()
public java.lang.String toString()
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