org.apache.openjpa.jdbc.kernel.exps
Class Sum
java.lang.Object
org.apache.openjpa.jdbc.kernel.exps.AbstractVal
org.apache.openjpa.jdbc.kernel.exps.UnaryOp
org.apache.openjpa.jdbc.kernel.exps.Sum
- All Implemented Interfaces:
- Serializable, Val, Value
class Sum
- extends UnaryOp
Sum.
- Author:
- Abe White
Fields inherited from interface org.apache.openjpa.jdbc.kernel.exps.Val |
ABS_VAL, ARGS_VAL, CMP_EQUAL, COALESCE_VAL, CONCAT_VAL, FORCE_OUTER, GENERALCASE_VAL, INDEXOF_VAL, JOIN_REL, LENGTH_VAL, LOCATE_VAL, LOWER_VAL, MATH_VAL, NULL_CMP, NULLIF_VAL, SIMPLECASE_VAL, SQRT_VAL, SUBSTRING_VAL, TRIM_VAL, UPPER_VAL, VAL, WHENCONDITION_VAL, WHENSCALAR_VAL |
Constructor Summary |
Sum(Val val)
Constructor. |
Method Summary |
protected String |
getOperator()
Return the name of this operator. |
protected Class |
getType(Class c)
Return the type of this value based on the argument type. |
boolean |
isAggregate()
Return true if this value is an aggregate. |
Methods inherited from class org.apache.openjpa.jdbc.kernel.exps.UnaryOp |
acceptVisit, appendTo, calculateValue, getMetaData, getNoParen, getType, getValue, groupBy, initialize, initializeValue, length, load, orderBy, select, selectColumns, setImplicitType, setMetaData |
Methods inherited from class org.apache.openjpa.jdbc.kernel.exps.AbstractVal |
appendIndex, appendIsEmpty, appendIsNotEmpty, appendIsNotNull, appendIsNull, appendSize, appendType, getAlias, getId, getName, getPath, getSelectAs, isVariable, isXPath, setAlias, toDataStoreValue |
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 operate on.
getType
protected Class getType(Class c)
- Description copied from class:
UnaryOp
- Return the type of this value based on the argument type. Returns
the argument type by default.
- Overrides:
getType
in class UnaryOp
getOperator
protected String getOperator()
- Description copied from class:
UnaryOp
- Return the name of this operator.
- Specified by:
getOperator
in class UnaryOp
isAggregate
public boolean isAggregate()
- Description copied from interface:
Value
- Return true if this value is an aggregate.
- Specified by:
isAggregate
in interface Value
- Overrides:
isAggregate
in class AbstractVal
Copyright © 2006-2010 Apache Software Foundation. All Rights Reserved.