org.apache.openjpa.persistence.query
Class UnaryOperatorExpression

java.lang.Object
  org.apache.openjpa.persistence.query.AbstractVisitable
      org.apache.openjpa.persistence.query.ExpressionImpl
          org.apache.openjpa.persistence.query.UnaryOperatorExpression

All Implemented Interfaces:

Serializable, Aggregate, Expression, OrderByItem, PredicateOperand, SelectItem, Visitable

Direct Known Subclasses:

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

 class UnaryOperatorExpression
extends ExpressionImpl
implements Aggregate

Field Summary

protected Expression	_e
protected UnaryFunctionalOperator	_op

Fields inherited from class org.apache.openjpa.persistence.query.AbstractVisitable

CLOSE_BRACE, COMMA, EMPTY, OPEN_BRACE, SPACE

Constructor Summary

UnaryOperatorExpression(Expression e, UnaryFunctionalOperator op)

Method Summary

String	asExpression(AliasContext ctx) Get a JPQL fragment as used in WHERE clause.
String	asProjection(AliasContext ctx) Gets the string representation in SELECT projection.
Expression	distinct() Specify that duplicates are to be removed before the aggregate operation is invoked.
Expression	getOperand()
UnaryFunctionalOperator	getOperator()

Methods inherited from class org.apache.openjpa.persistence.query.ExpressionImpl

abs, asc, between, between, between, between, between, between, between, between, between, between, between, between, between, concat, concat, desc, dividedBy, dividedBy, equal, equal, equal, equal, equal, equal, equal, equal, getAliasHint, greaterEqual, greaterEqual, greaterEqual, greaterEqual, greaterEqual, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, in, in, in, in, in, in, isNull, length, lessEqual, lessEqual, lessEqual, lessEqual, lessEqual, lessThan, lessThan, lessThan, lessThan, lessThan, like, like, like, like, like, like, locate, locate, locate, locate, locate, locate, lower, member, minus, minus, minus, mod, mod, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, plus, plus, sqrt, substring, substring, substring, substring, substring, substring, times, times, trim, trim, trim, trim, trim, trim, upper

Methods inherited from class org.apache.openjpa.persistence.query.AbstractVisitable

asJoinable

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

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

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

asJoinable

Field Detail

_e

protected final Expression _e

_op

protected final UnaryFunctionalOperator _op

Constructor Detail

UnaryOperatorExpression

public UnaryOperatorExpression(Expression e,
                               UnaryFunctionalOperator op)

Method Detail

getOperand

public Expression getOperand()

getOperator

public UnaryFunctionalOperator getOperator()

distinct

public Expression distinct()

Description copied from interface: Aggregate

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

Specified by:

distinct in interface Aggregate

asExpression

public String asExpression(AliasContext ctx)

Description copied from interface: Visitable

Get a JPQL fragment as used in WHERE clause.

Specified by:

asExpression in interface Visitable

Overrides:

asExpression in class AbstractVisitable

asProjection

public String asProjection(AliasContext ctx)

Description copied from interface: Visitable

Gets the string representation in SELECT projection.

Specified by:

asProjection in interface Visitable

Overrides:

asProjection in class AbstractVisitable