Package org.eclipse.persistence.jpa.jpql.model.query

This package contains the StateObject classes that represents a JPQL query.

See: Description

Interface Summary

Interface	Description
DeclarationStateObject	This defines the declaration portion of a query, which is the FROM clause of a query.
EclipseLinkStateObjectVisitor	The interface is used to traverse the StateObject hierarchy that represents a JPQL query as well as what EclipseLink adds on top of the basic grammar.
ListHolderStateObject<T>	A ListHolderStateObject is a StateObject having a list of children and this gives access to some operation over the list.
StateObject	A StateObject is an editable representation of a JPQL query.
StateObjectProblem
StateObjectVisitor	The visitor is used to traverse the StateObject hierarchy that represents a JPQL query.
VariableDeclarationStateObject	This defines a variable declaration, which has a "root" object and an identification variable.

Class Summary

Class	Description
AbsExpressionStateObject	The ABS function removes the minus sign from a specified argument and returns the absolute value, which is always a positive number or zero.
AbstractConditionalClauseStateObject	Conditional expressions are composed of other conditional expressions, comparison operations, logical operations, path expressions that evaluate to boolean values, boolean literals, and boolean input parameters.
AbstractDoubleEncapsulatedExpressionStateObject	This StateObject represents a JPQL expression that has a JPQL identifier followed by two an encapsulated expression with parenthesis, the two expression are separated by a comma.
AbstractEclipseLinkStateObjectVisitor	The abstract definition of EclipseLinkStateObjectVisitor, which implements all the methods but does nothing.
AbstractEclipseLinkTraverseChildrenVisitor	This StateObjectVisitor traverses the entire hierarchy of the JPQL parsed tree by going down into each of the children of any given StateObject.
AbstractEclipseLinkTraverseParentVisitor	This StateObjectVisitor traverses up the hierarchy.
AbstractEncapsulatedExpressionStateObject	This expression handles parsing the identifier followed by an expression encapsulated within parenthesis.
AbstractFromClauseStateObject	This state object represents the abstract definition of a FROM clause, which is either the FROM clause of the query or of a sub-query expression.
AbstractIdentificationVariableDeclarationStateObject
AbstractListHolderStateObject<T extends StateObject>	The abstraction definition of a StateObject that holds onto a list of children, the methods defined in ListHolderStateObject are automatically handled here.
AbstractModifyClauseStateObject
AbstractModifyStatementStateObject	The abstract definition of a modify statement.
AbstractPathExpressionStateObject	An identification variable followed by the navigation operator (.) and a state field or association field is a path expression.
AbstractRangeVariableDeclarationStateObject
AbstractSchemaNameStateObject	An abstract schema name designates the abstract schema type over which the query ranges.
AbstractSelectClauseStateObject	This state object represents the abstract definition of a SELECT clause, which is either the SELECT clause of the top-level query or of a subquery.
AbstractSelectStatementStateObject	This state object represents the select statement, which has at least a SELECT clause and a FROM clause.
AbstractSingleEncapsulatedExpressionStateObject	This StateObject represents a JPQL expression that has a JPQL identifier followed by an encapsulated expression with parenthesis.
AbstractStateObject	The abstract definition of a StateObject.
AbstractStateObjectVisitor	The abstract definition of StateObjectVisitor, which implements all the methods but does nothing.
AbstractTraverseChildrenVisitor	This StateObjectVisitor traverses the entire hierarchy of the JPQL parsed tree by going down into each of the children of any given StateObject.
AbstractTraverseParentVisitor	This StateObjectVisitor traverses up the hierarchy.
AbstractTripleEncapsulatedExpressionStateObject	This state object takes care of parsing an expression that encapsulates three expressions separated by a comma.
AdditionExpressionStateObject	TODO: BNF: arithmetic_expression ::= arithmetic_expression + arithmetic_term
AggregateFunctionStateObject	In the SELECT clause the result of a query may be the result of an aggregate function applied to a path expression.
AllOrAnyExpressionStateObject	An ALL conditional expression is a predicate that is true if the comparison operation is true for all values in the result of the subquery or the result of the subquery is empty.
AndExpressionStateObject	The AND logical operator chains multiple criteria together.
AnonymousStateObjectVisitor	This visitor allows a subclass to simply override AnonymousStateObjectVisitor.visit(StateObject) and perform the same task for all visited ItateObjects.
AnonynousEclipseLinkStateObjectVisitor	This visitor allows a subclass to simply override AnonymousStateObjectVisitor.visit(StateObject) and perform the same task for all visited ItateObjects.
ArithmeticExpressionStateObject	This expression represents an arithmetic expression, which means the first and second expressions are aggregated with an arithmetic sign.
ArithmeticFactorStateObject	This state object simply adds a plus or minus sign to the arithmetic primary expression.
AvgFunctionStateObject	One of the aggregate functions.
BadExpressionStateObject	This wraps an invalid portion of the JPQL query that could not be parsed.
BetweenExpressionStateObject	Used in conditional expression to determine whether the result of an expression falls within an inclusive range of values.
CaseExpressionStateObject	A CASE predicate is used to calculate a condition and when it's true, its THEN expression will be executed.
ChangeSupport	This ChangeSupport is responsible to notifies registered listeners upon changes made to a StateObject, those changes are either a property has changed (IPropertyChangeListener) or the content of a list has changed (IListChangeListener).
CoalesceExpressionStateObject	A COALESCE expression returns null if all its arguments evaluate to null, and the value of the first non-null argument otherwise.
CollectionExpressionStateObject	This StateObject is a temporary object used to store a list of StateObjects.
CollectionMemberDeclarationStateObject	An identification variable declared by a collection_member_declaration ranges over values of a collection obtained by navigation using a path expression.
CollectionMemberExpressionStateObject	This expression tests whether the designated value is a member of the collection specified by the collection-valued path expression.
CollectionValuedPathExpressionStateObject	A collection-valued field is designated by the name of an association field in a one-to-many or a many-to-many relationship or by the name of an element collection field.
ComparisonExpressionStateObject	Only the values of like types are permitted to be compared.
CompoundExpressionStateObject	A compound StateObject has a left and right expressions combined by an identifier.
ConcatExpressionStateObject	The CONCAT function returns a string that is a concatenation of its arguments.
ConstructorExpressionStateObject	In the SELECT clause a constructor may be used in the SELECT list to return one or more Java instances.
CountFunctionStateObject	One of the aggregate functions.
DateTimeStateObject	This DateTimeStateObject represents a date or time.
DeleteClauseStateObject	This is the DELETE clause of the DELETE statement.
DeleteStatementStateObject	Bulk delete operation apply to entities of a single entity class (together with its subclasses, if any).
DerivedPathIdentificationVariableDeclarationStateObject
DerivedPathVariableDeclarationStateObject	BNF: subselect_identification_variable_declaration ::= derived_path_expression [AS] identification_variable {join}* BNF: derived_path_expression ::= superquery_identification_variable.
DivisionExpressionStateObject	TODO: BNF: arithmetic_expression ::= arithmetic_expression / arithmetic_term
EmptyCollectionComparisonExpressionStateObject	This expression tests whether or not the collection designated by the collection-valued path expression is empty (i.e, has no elements).
EncapsulatedIdentificationVariableExpressionStateObject	This object represents an identification variable that is wrapped by a function.
EntityTypeLiteralStateObject	This StateObject wraps the name of an entity type.
EntryExpressionStateObject	This object represents an identification variable that maps the Map.Entry) of a Map.
EnumTypeStateObject	This StateObject wraps the name of an Enum constant.
ExistsExpressionStateObject	An EXISTS expression is a predicate that is true only if the result of the subquery consists of one or more values and that is false otherwise.
FromClauseStateObject	The FROM clause of a query defines the domain of the query by declaring identification variables.
FunctionExpressionStateObject
GroupByClauseStateObject	The GROUP BY construct enables the aggregation of values according to the properties of an entity class.
HavingClauseStateObject	The HAVING construct enables conditions to be specified that further restrict the query result as restrictions upon the groups.
IdentificationVariableDeclarationStateObject	An identification variable is a valid identifier declared in the FROM clause of a query.
IdentificationVariableStateObject	This state object represents a single identification variable, which is identifying TODO.
IndexExpressionStateObject	The INDEX function returns an integer value corresponding to the position of its argument in an ordered list.
InExpressionStateObject	The state field path expression must have a string, numeric, or enum value.
InputParameterStateObject	Either positional or named parameters may be used.
JoinStateObject	A JOIN enables the fetching of an association as a side effect of the execution of a query.
JPQLQueryStateObject	This is the root of the StateObject hierarchy that represents a JPQL query.
KeyExpressionStateObject	This object represents an identification variable that maps the keys of a Map.
KeywordExpressionStateObject	The expression representing some keywords: TRUE, FALSE or NULL.
LengthExpressionStateObject	The LENGTH function returns the length of the string in characters as an integer.
LikeExpressionStateObject	The LIKE condition is used to specify a search for a pattern.
LocateExpressionStateObject	The LOCATE function returns the position of a given string within a string, starting the search at a specified position.
LogicalExpressionStateObject	This expression represents a logical expression, which means the first and second expressions are aggregated with either the AND or the OR operator.
LowerExpressionStateObject	The LOWER function converts a string to lower case and it returns a string.
MaxFunctionStateObject	One of the aggregate functions.
MinFunctionStateObject	One of the aggregate functions.
ModExpressionStateObject	The modulo operation finds the remainder of division of one number by another.
MultiplicationExpressionStateObject	TODO: BNF: arithmetic_expression ::= arithmetic_expression * arithmetic_term
NotExpressionStateObject	BNF: expression ::= NOT conditional_primary
NullComparisonExpressionStateObject	A null comparison tests whether or not the single-valued path expression or input parameter is a NULL value.
NullIfExpressionStateObject	NULLIF returns the first expression if the two expressions are not equal.
NumericLiteralStateObject	Exact numeric literals support the use of Java integer literal syntax as well as SQL exact numeric literal syntax.
ObjectExpressionStateObject	Stand-alone identification variables in the SELECT clause may optionally be qualified by the OBJECT operator.
OrderByClauseStateObject	The ORDER BY clause allows the objects or values that are returned by the query to be ordered.
OrderByItemStateObject	An ORDER BY item must be one of the following: A state_field_path_expression that evaluates to an orderable state field of an entity or embeddable class abstract schema type designated in the SELECT clause by one of the following: A general_identification_variable A single_valued_object_path_expression A state_field_path_expression that evaluates to the same state field of the same entity or embeddable abstract schema type as a state_field_path_expression in the SELECT clause A result_variable that refers to an orderable item in the SELECT clause for which the same result_variable has been specified.
OrExpressionStateObject	The OR logical operator chains multiple criteria together.
RangeVariableDeclarationStateObject	Range variable declarations allow the developer to designate a "root" for objects which may not be reachable by navigation.
ResultVariableStateObject	A result variable may be used to name a select item in the query result.
SelectClauseStateObject	The SELECT statement queries data from entities, which determines the type of the objects or values to be selected.
SelectStatementStateObject	This state object represents a select statement, which has at least a SELECT clause and a FROM clause.
SimpleFromClauseStateObject	The FROM clause of a sub-query defines the domain of the sub-query by declaring identification variables.
SimpleSelectClauseStateObject	The SELECT statement queries data from entities.
SimpleSelectStatementStateObject	This state object represents a subquery, which has at least a SELECT clause and a FROM clause.
SimpleStateObject	This StateObject simply holds onto a string.
SizeExpressionStateObject	The SIZE function returns an integer value, the number of elements of the collection.
SqrtExpressionStateObject	The SQRT function takes a numeric argument and returns a Double.
StateFieldPathExpressionStateObject	A single-valued association field is designated by the name of an association-field in a one-to-one or many-to-one relationship.
StateFieldPathExpressionStateObject.MapManagedType
StringLiteralStateObject	A string literal is enclosed in single quotes.
SubExpressionStateObject	This expression wraps a sub-expression within parenthesis.
SubstringExpressionStateObject	The second and third arguments of the SUBSTRING function denote the starting position and length of the substring to be returned.
SubtractionExpressionStateObject	TODO: BNF: arithmetic_expression ::= arithmetic_expression - arithmetic_term
SumFunctionStateObject	One of the aggregate functions.
TreatExpressionStateObject	Returns an expression that allows to treat its base as if it were a subclass of the class returned by the base.
TrimExpressionStateObject	The TRIM function trims the specified character from a string.
TypeExpressionStateObject	An entity type expression can be used to restrict query polymorphism.
UnknownExpressionStateObject	This StateObject holds onto an unknown portion of a JPQL query that could not be parsed.
UpdateClauseStateObject	This is the UPDATE clause of the UPDATE statement.
UpdateItemStateObject	The new_value specified for an update operation must be compatible in type with the field to which it is assigned.
UpdateStatementStateObject	The UPDATE clause of a query consists of a conditional expression used to select objects or values that satisfy the expression.
UpperExpressionStateObject	The UPPER function converts a string to upper case and it returns a string.
ValueExpressionStateObject	This object represents an identification variable that maps the values of a Map.
WhenClauseStateObject	A WHEN predicate is used to calculate a condition and when it's true, its THEN will be executed.
WhereClauseStateObject	The WHERE clause of a query consists of a conditional expression used to select objects or values that satisfy the expression.

Package org.eclipse.persistence.jpa.jpql.model.query Description

This package contains the StateObject classes that represents a JPQL query.