public class KeyExpressionStateObject extends EncapsulatedIdentificationVariableExpressionStateObject
Map
.
This is part of JPA 2.0.
KEY(identification_variable)
KeyExpression
IDENTIFICATION_VARIABLE_PROPERTY
STATE_OBJECT_PROPERTY
Constructor and Description |
---|
KeyExpressionStateObject(StateObject parent)
Creates a new
KeyExpressionStateObject . |
KeyExpressionStateObject(StateObject parent,
java.lang.String identificationVariable)
Creates a new
KeyExpressionStateObject . |
Modifier and Type | Method and Description |
---|---|
void |
accept(StateObjectVisitor visitor)
Visits this
StateObject by the given visitor . |
KeyExpression |
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 . |
void |
setExpression(KeyExpression 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 . |
getIdentificationVariable, getManagedType, getStateObject, getType, getTypeDeclaration, hasIdentificationVariable, setIdentificationVariable
hasStateObject, isEquivalent, parse
addPropertyChangeListener, children, decorate, equals, findIdentificationVariable, getDeclaration, getDecorator, getGrammar, getManagedTypeProvider, getParent, getQueryBuilder, getRoot, getType, getType, getTypeHelper, getTypeRepository, hashCode, isDecorated, removePropertyChangeListener, setExpression, setParent, toString, toString, toText
public KeyExpressionStateObject(StateObject parent)
KeyExpressionStateObject
.parent
- The parent of this state object, which cannot be null
java.lang.NullPointerException
- The given parent cannot be null
public KeyExpressionStateObject(StateObject parent, java.lang.String identificationVariable)
KeyExpressionStateObject
.parent
- The parent of this state object, which cannot be null
identificationVariable
- The identification variablejava.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 KeyExpression getExpression()
StateObject
representation of the JPQL query
was created by parsing an existing JPQL query.getExpression
in interface StateObject
getExpression
in class EncapsulatedIdentificationVariableExpressionStateObject
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
public void setExpression(KeyExpression 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 KEY
expressionEclipseLink 2.6.3, "build v20160428-59c81c5" API Reference