Package org.datanucleus.query.expression

Package providing expressions from which a compiled query is made up.

See:
Description

Interface Summary

ExpressionEvaluator

Class Summary

ArrayExpression	Expression representing an input array of expressions (or at least some of the array is of expressions).
CastExpression	Expression representing a cast to a different type.
ClassExpression	Expression representing a candidate in a FROM clause.
CreatorExpression	Expression representing something like "new X.Y.Z([param1[,param2[,param3]]])".
DyadicExpression	Expression between two other expressions and an operation.
Expression	A Scalar expression in a Query.
Expression.DyadicOperator	"Dyadic" operator performs operation on one or two operands.
Expression.MonadicOperator	"Monadic" operator performs a function on one operand.
Expression.Operator	Representation of an Operator.
ExpressionCompiler	Compiler for expressions.
InvokeExpression	Expression representing invocation of a method.
JoinExpression	Expression representing a join between a candidate class, and the class of a field of the first class.
Literal	Literal of some type (String, Double, Long, BigDecimal, etc).
OrderExpression	Expression as part of an ordering clause.
ParameterExpression	Expression representing a parameter.
PrimaryExpression	Expression for a primary object.
SubqueryExpression	Expression containing a subquery.
VariableExpression	Expression representing a variable.

Enum Summary

JoinExpression.JoinType

Exception Summary

PrimaryExpressionIsClassLiteralException	Exception thrown when compiling a PrimaryExpression and we find that it really represents a Class literal, and so should be swapped in the expression tree.
PrimaryExpressionIsClassStaticFieldException	Exception thrown when compiling a PrimaryExpression and we find that it really represents a static field of a Class (literal), and so should be swapped in the Node tree.
PrimaryExpressionIsInvokeException	Exception thrown when compiling a PrimaryExpression and we find that it really represents an invocation of a method, and so should be swapped in the expression tree.
PrimaryExpressionIsVariableException	Exception thrown when compiling a PrimaryExpression and we find that it really represents an implicit variable, and so should be swapped in the expression tree.

Package org.datanucleus.query.expression Description

Package providing expressions from which a compiled query is made up.