public class IndexExpressionStateObject extends EncapsulatedIdentificationVariableExpressionStateObject
INDEX function returns an integer value corresponding to the position of
its argument in an ordered list. The INDEX function can only be applied to
identification variables denoting types for which an order column has been specified.
expression ::= INDEX(identification_variable)IndexExpressionIDENTIFICATION_VARIABLE_PROPERTYSTATE_OBJECT_PROPERTY| Constructor and Description |
|---|
IndexExpressionStateObject(StateObject parent)
Creates a new
IndexExpressionStateObject. |
IndexExpressionStateObject(StateObject parent,
java.lang.String identificationVariable)
Creates a new
IndexExpressionStateObject. |
| Modifier and Type | Method and Description |
|---|---|
void |
accept(StateObjectVisitor visitor)
Visits this
StateObject by the given visitor. |
IndexExpression |
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(IndexExpression 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. |
checkIntegrity, clearResolvedObjects, getIdentificationVariable, getManagedType, getQueryBNFId, getStateObject, getType, getTypeDeclaration, hasIdentificationVariable, initialize, resolveManagedType, resolveType, resolveTypeDeclaration, setIdentificationVariableaddChildren, hasStateObject, isEquivalent, parse, setStateObject, toTextEncapsulatedExpressiontoTextInternalacceptUnknownVisitor, 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, isDecorated, parent, parent, parent, removePropertyChangeListener, setExpression, setParent, toString, toString, toStringInternal, toStringItems, toTextpublic IndexExpressionStateObject(StateObject parent)
IndexExpressionStateObject.parent - The parent of this state object, which cannot be nulljava.lang.NullPointerException - The given parent cannot be nullpublic IndexExpressionStateObject(StateObject parent, java.lang.String identificationVariable)
IndexExpressionStateObject.parent - The parent of this state object, which cannot be nullidentificationVariable - The name of the identification variablejava.lang.NullPointerException - The given parent cannot be nullpublic void accept(StateObjectVisitor visitor)
StateObject by the given visitor.visitor - The visitor to visit this objectpublic IndexExpression getExpression()
StateObject representation of the JPQL query
was created by parsing an existing JPQL query.getExpression in interface StateObjectgetExpression in class EncapsulatedIdentificationVariableExpressionStateObjectStateObject
or null when the JPQL query is manually created (i.e. not from a string)public java.lang.String getIdentifier()
AbstractSingleEncapsulatedExpressionStateObject.getIdentifier in class AbstractEncapsulatedExpressionStateObjectpublic void setExpression(IndexExpression 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 an INDEX
expression