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java.lang.Objectorg.apache.torque.util.functions.AggregateFunction
org.apache.torque.util.functions.Sum
public class Sum
SQL99 Standard sum function.
Constructor Summary | |
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Sum(Column column)
Construct an SUM function class with the column to sum over. |
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Sum(Column column,
boolean distinct)
Construct an SUM function class with the column to sum over and possibly a distinct modifier. |
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Sum(String sqlExpression)
Construct an SUM function class with an SQL expression to sum over. |
Method Summary | |
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void |
setFunction(String function)
This method cannot be called, an UnsupportedOperationException will always be thrown. |
Methods inherited from class org.apache.torque.util.functions.AggregateFunction |
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getArgument, getArguments, getColumn, getColumnName, getFullTableName, getFunction, getSchemaName, getSqlExpression, getTableName, isDistinct, setArguments, setColumn |
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 Sum(Column column)
column
- the Column to sum over.public Sum(String sqlExpression)
sqlExpression
- the SQL expression to sum over.public Sum(Column column, boolean distinct)
column
- the Column to sum over.distinct
- whether to count only over distinct values.Method Detail |
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public void setFunction(String function)
setFunction
in class AggregateFunction
function
- disregarded.
UnsupportedOperationException
- always.
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