org.apache.openjpa.kernel.exps
Class Sum
java.lang.Object
   org.apache.openjpa.kernel.exps.Val
org.apache.openjpa.kernel.exps.Val
       org.apache.openjpa.kernel.exps.AggregateVal
org.apache.openjpa.kernel.exps.AggregateVal
           org.apache.openjpa.kernel.exps.Sum
org.apache.openjpa.kernel.exps.Sum
- All Implemented Interfaces: 
- Serializable, Value
-  class Sum 
- extends AggregateVal
Sum values.
- Author:
- Abe White
| Constructor Summary | 
| Sum(Val val)Constructor.
 | 
 
 
 
| Methods inherited from class org.apache.openjpa.kernel.exps.Val | 
| evaluate, evaluate, getAlias, getMetaData, getName, getPath, getSelectAs, isVariable, isXPath, setAlias, setMetaData | 
 
| Methods inherited from class java.lang.Object | 
| clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait | 
 
Sum
public Sum(Val val)
- Constructor. Provide the value to sum.
 
getType
protected Class getType(Class c)
- Description copied from class: AggregateVal
- Return the type of this aggregate based on the value type.
 
- 
- Specified by:
- getTypein class- AggregateVal
 
- 
 
operate
protected Object operate(Collection os,
                         Class c)
- Description copied from class: AggregateVal
- Aggregate the given values.
 
- 
- Specified by:
- operatein class- AggregateVal
 
- 
 
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