public class TypeExpressionStateObject extends AbstractSingleEncapsulatedExpressionStateObject
TYPE
operator returns the exact type of the argument.
Part of JPA 2.0.
type_discriminator ::= TYPE(identification_variable |
single_valued_object_path_expression |
input_parameter)
TypeExpression
STATE_OBJECT_PROPERTY
Constructor and Description |
---|
TypeExpressionStateObject(StateObject parent)
Creates a new
TypeExpressionStateObject . |
TypeExpressionStateObject(StateObject parent,
StateObject stateObject)
Creates a new
TypeExpressionStateObject . |
TypeExpressionStateObject(StateObject parent,
java.lang.String path)
Creates a new
TypeExpressionStateObject . |
Modifier and Type | Method and Description |
---|---|
void |
accept(StateObjectVisitor visitor)
Visits this
StateObject by the given visitor . |
TypeExpression |
getExpression()
Returns the actual parsed object if this
StateObject representation of the JPQL query
was created by parsing an existing JPQL query. |
java.lang.String |
getIdentifier()
Returns the JPQL identifier of the expression represented by this
AbstractSingleEncapsulatedExpressionStateObject . |
protected java.lang.String |
getQueryBNFId()
Returns the unique identifier of the
JPQLQueryBNF that will determine how to parse the encapsulated expression. |
void |
setExpression(TypeExpression expression)
Keeps a reference of the
parsed object object, which should only be
done when this object is instantiated during the conversion of a parsed JPQL query into
StateObjects . |
void |
setStateObject(StateObject stateObject)
Sets the given
StateObject to represent the new encapsulated expression. |
addChildren, getStateObject, hasStateObject, isEquivalent, parse, toTextEncapsulatedExpression
toTextInternal
acceptUnknownVisitor, acceptUnknownVisitor, addProblems, addPropertyChangeListener, areEquivalent, buildProblem, buildProblem, buildStateObject, buildStateObjects, checkParent, children, decorate, equals, findIdentificationVariable, firePropertyChanged, getChangeSupport, getDeclaration, getDecorator, getGrammar, getManagedTypeProvider, getParent, getQueryBuilder, getRoot, getType, getType, getTypeHelper, getTypeRepository, hashCode, initialize, isDecorated, parent, parent, parent, removePropertyChangeListener, setExpression, setParent, toString, toString, toStringInternal, toStringItems, toText
public TypeExpressionStateObject(StateObject parent)
TypeExpressionStateObject
.parent
- The parent of this state object, which cannot be null
java.lang.NullPointerException
- The given parent cannot be null
public TypeExpressionStateObject(StateObject parent, StateObject stateObject)
TypeExpressionStateObject
.parent
- The parent of this state object, which cannot be null
stateObject
- The StateObject
representing the encapsulated expressionjava.lang.NullPointerException
- The given parent cannot be null
public TypeExpressionStateObject(StateObject parent, java.lang.String path)
TypeExpressionStateObject
.parent
- The parent of this state object, which cannot be null
path
- Either the identification variable, the singled-valued object path expression or
the input parameterjava.lang.NullPointerException
- The given parent cannot be null
public void accept(StateObjectVisitor visitor)
StateObject
by the given visitor
.visitor
- The visitor
to visit this objectpublic TypeExpression getExpression()
StateObject
representation of the JPQL query
was created by parsing an existing JPQL query.getExpression
in interface StateObject
getExpression
in class AbstractSingleEncapsulatedExpressionStateObject
StateObject
or null
when the JPQL query is manually created (i.e. not from a string)public java.lang.String getIdentifier()
AbstractSingleEncapsulatedExpressionStateObject
.getIdentifier
in class AbstractEncapsulatedExpressionStateObject
protected java.lang.String getQueryBNFId()
JPQLQueryBNF
that will determine how to parse the encapsulated expression.getQueryBNFId
in class AbstractSingleEncapsulatedExpressionStateObject
null
ID of the BNFpublic void setExpression(TypeExpression expression)
parsed object
object, which should only be
done when this object is instantiated during the conversion of a parsed JPQL query into
StateObjects
.expression
- The parsed object
representing a TYPE
expressionpublic void setStateObject(StateObject stateObject)
StateObject
to represent the new encapsulated expression.setStateObject
in class AbstractSingleEncapsulatedExpressionStateObject
stateObject
- The new encapsulated StateObject