Query.Datagrid.Aggregate.groupMaxList()

Signature

Object groupMaxList(String resultSetName, String entityUri, String fieldName, String filter, String... groupByFieldNames)

Domain

QUERY, ACTION

Description

Find the maximum of the entities from the field specified by field name, of the specified URI, which satisfies the condition in the filter for each group.

Parameters

NameTypeDescription
resultSetNameStringThe resultset name
entityUriStringThe entity uri.
fieldNameStringCondition to be satisfied by the entities in the result.
groupByFieldNamesString...Names of the fields in groupBy clause.

Returns

TypeDescription
ObjectReturn a List of rows. Each row may be a single Object column or an Object[] of columns.

Cautions

none

Example

String resultSetName = "groupMaxListRS" ;
Object resultSet = Query.Datagrid.Aggregate.groupMaxList(resultSetName, "/Concepts/Employee","exp","age < 4", "age", "dept");
//Iterate over the result set
while(Query.Util.sizeOfList(resultList) > 0){
    Object[] s = Query.Util.removeFromList(resultList, 0);
    /* s[0]-- age, s[1]-- exp, s[2]-- maximum exp from the employee entities
    satisfying the filter condition for this age and exp */
    System.debugOut(resultSetName + " :: " + s[0] + " : "+ s[1] + " : "+ s[2]);
}