Package org.datanucleus.store.mapped.expression

This package provides a series of expressions and literals used in the conversion of a JDOQL query into the resultant SQL that is required to be executed in the datastore.

See:
Description

Interface Summary

ArrayStoreQueryable	Interface representation of the querying capabilities of a backing store for an array.
CollectionStoreQueryable	Interface representation of the querying capabilities of a backing store for a collection.
ExpressionConversionAdapter	Every expression written in the Java programming language has a type that can be deduced from the structure of the expression and the types of the literals, variables, and methods mentioned in the expression.
ExpressionLogicSetAdapter	Interface that allows performing algebra operations over sets
ExpressionMethodAdapter	Interface that allows one datastore adapt operations.
ExpressionOperatorAdapter	Interface that allows one datastore adapt expression and operators
ExpressionPatternAdapter	Interface that allows one datastore adapt pattern expressions
Literal	Represents a Literal expression.
MapStoreQueryable	Interface representation of the querying capabilities of a backing store for a map.
Queryable	Indicates an object that can be queried, such as an Extent or persistent collection.
QueryExpression	Expression for a query in language-independent form.
UnboundVariable.VariableBinder

Class Summary

AggregateExpression	Representation of aggregate functions in JDOQL.
AnalysisExpression	Representation of analysis SQL functions in JDOQL.
ArrayExpression	Representation of array expression.
ArrayLiteral	Representation of array expression.
BinaryExpression	Expression for binary object.
BinaryLiteral	Literal for binary object.
BooleanBitColumnExpression	Representation of BooleanBit column expression in a Query.
BooleanBitColumnLiteral	Representation of a BooleanBit column literal in a Query.
BooleanCharColumnExpression	Representation of a BooleanChar column expression.
BooleanCharColumnLiteral	Representation of a BooleanChar Column literal in a Query.
BooleanExpression	Representation of a Boolean expression in a Query.
BooleanLiteral	Representation of a Boolean literal in a Query.
ByteExpression	Representation of a Byte expression in a Query.
ByteLiteral	Representation of a Byte literal.
CharacterExpression	Representation of a Character expression in a Query
CharacterLiteral	Representation of a Character literal in a Query.
ClassExpression	An expression representing a class.
CollectionExpression	An expression that represents some collection field in a query candidate class, or a collection field in an object linked from the candidate class by navigation.
CollectionLiteral	An SQL expression that will test if a column of a table falls within the given Collection of values.
CollectionSubqueryExpression	An expression for collections whose contents are expressed as a SQL subquery.
ConcatOperatorExpression	Concatenate two expressions.
ExistsExpression	Perform a exists function on a Query Expression returning a true boolean value if one or more elements are retrieved.
ExpressionHelper	Helper class for doing tasks relating to expressions and handling mappings in query statements.
FloatingPointLiteral	Representation of a FloatPoint literal in a query.
InExpression	Expression for something being "in"/"not in" something else.
IntegerLiteral	Representation of an Integer literal.
JDOHelperExpression	Representation of JDOHelper in JDOQL
JoinExpression	An expression representing a JOIN in JPQL terms.
LikeExpression	Expression for something being "like"/"not like" something else.
LogicSetExpression	Represents a Set.
MapExpression	An expression that represents some Map field in a query candidate class, or a Map field in an object linked from the candidate class by navigation.
MapKeyLiteral	An SQL expression that will test if a column of a table falls within the given Map's keys.
MapLiteral	An SQL expression that will test if a column of a table falls within the given Map.
MapValueLiteral	An SQL expression that will test if a column of a table falls within the given Map's values.
MathExpression	Representation of Math functions in query languages.
MetaDataStringLiteral	Representation of a metadata string literal.
NewObjectExpression	Representation of an expression "new MyObject(param1, param2)" as the result in a JDOQL query.
NullLiteral	Representation of a Null literal in a Query.
NumericExpression	Representation of a Numeric expression in a Query.
ObjectExpression	Representation of an Object expression in a Query.
ObjectLiteral	Representation of an Object literal in a query.
ReferenceExpression	Represents a reference field/object (interface/object) in a JDOQL query.
ScalarExpression	A Scalar expression in a Query.
ScalarExpression.DatastoreFieldExpression	A field expression represents a storage location for the value with an associated type
ScalarExpression.DyadicOperator	"Dyadic" operator performs operation on one or two operands
ScalarExpression.MonadicOperator	"Monadic" operator performs a function on one operand.
ScalarExpression.Operator	Inner class representing an Operator
SqlDateLiteral	Representation of an SQLDate literal in a Query.
SqlTemporalExpression	Representation of an expression with an SQL time type (SQLDate, SQLTime, SQLTimestamp)
SqlTimeLiteral	Representation of an SQLTime literal in a Query.
SqlTimestampLiteral	Representation of an SQLTimestamp literal in a Query.
StatementText	Representation of a snippet of an SQL statement.
StringExpression	Representation of an expression with a string.
StringLiteral	Representation of a string literal.
SubqueryExpression	An expression representing a subquery.
SubstringExpression	Representation of a Substring expression in a Query.
TableExprAsJoins	A SQL table expression that joins superclass tables by joining them directly to the surrounding QueryStatement.
TableExprAsSubjoins	A SQL table expression that joins superclass tables by constructing a parenthesized set of subjoins.
TemporalExpression	Representation of temporal functions in java query languages.
UnboundVariable	Representation of an unbound variable in a Query.
UnknownLiteral	Representation of a unknown literal in a Query.

Exception Summary

ScalarExpression.IllegalArgumentTypeException	An illegal argument error represents method invocations with unsupported/invalid argument types
ScalarExpression.IllegalOperationException	Inner class representing an illegal operation.
ScalarExpression.MethodInvocationException	A method invocation error represents an effort to invoke a operation on a expression
TableMismatchException	A TableMismatchException is thrown if the query statement generator attempts to reference a column in a table expression but the column's table is not present in the expression, nor can it be sensibly joined to the expression.

Package org.datanucleus.store.mapped.expression Description

This package provides a series of expressions and literals used in the conversion of a JDOQL query into the resultant SQL that is required to be executed in the datastore. The components are finely grained. These expressions are used within, for example, a QueryStatement. This package is DEPRECATED - to be replaced by org.datanucleus.store.rdbms.sql.*