org.apache.openjpa.persistence.query

Interface Aggregate

All Superinterfaces:

Expression, OrderByItem, PredicateOperand, SelectItem

All Known Implementing Classes:

AbsExpression, AverageExpression, ConcatExpression, CountExpression, DistinctExpression, IndexExpression, LengthExpression, LowerExpression, MaxExpression, MinExpression, SizeExpression, SquareRootExpression, SubStringExpression, SumExpression, TrimExpression, TypeExpression, UnaryMinusExpression, UpperExpression

public interface Aggregate
extends Expression

Type of the result of an aggregate operation

Method Summary

Methods

Modifier and Type	Method and Description
Expression	distinct() Specify that duplicates are to be removed before the aggregate operation is invoked.

Methods inherited from interface org.apache.openjpa.persistence.query.Expression

abs, concat, concat, dividedBy, dividedBy, in, in, in, in, in, in, isNull, length, locate, locate, locate, locate, locate, locate, lower, member, minus, minus, minus, mod, mod, plus, plus, sqrt, substring, substring, substring, substring, substring, substring, times, times, trim, trim, trim, trim, trim, trim, upper

Methods inherited from interface org.apache.openjpa.persistence.query.SelectItem

asc, desc

Methods inherited from interface org.apache.openjpa.persistence.query.PredicateOperand

between, between, between, between, between, between, between, between, between, between, between, between, between, equal, equal, equal, equal, equal, equal, equal, equal, greaterEqual, greaterEqual, greaterEqual, greaterEqual, greaterEqual, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, lessEqual, lessEqual, lessEqual, lessEqual, lessEqual, lessThan, lessThan, lessThan, lessThan, lessThan, like, like, like, like, like, like, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual

Method Detail

distinct

Expression distinct()

Specify that duplicates are to be removed before the aggregate operation is invoked.