public class DeleteClauseStateObject extends AbstractModifyClauseStateObject
DELETE
clause of the DELETE
statement.
A DELETE
statement provides bulk operations over sets of entities of a single
entity class (together with its subclasses, if any). Only one entity abstract schema type may be
specified in the UPDATE
clause.
delete_clause ::= DELETE FROM abstract_schema_name [[AS] identification_variable]
DeleteClause
Constructor and Description |
---|
DeleteClauseStateObject(DeleteStatementStateObject parent)
Creates a new
DeleteClauseStateObject . |
Modifier and Type | Method and Description |
---|---|
void |
accept(StateObjectVisitor visitor)
Visits this
StateObject by the given visitor . |
DeleteClause |
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 this clause.
|
DeleteStatementStateObject |
getParent()
Returns the parent of this
StateObject . |
void |
setExpression(DeleteClause 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 . |
addChildren, declarations, findManagedType, getAbstractSchemaName, getAbstractSchemaNameStateObject, getDeclaration, getEntity, getIdentificationVariable, getIdentificationVariableStateObject, getManagedType, getRangeVariableDeclaration, hasIdentificationVariable, initialize, isEquivalent, setDeclaration, setDeclaration, setDeclaration, setDeclaration, setEntity, setEntityName, setIdentificationVariable, toTextInternal
acceptUnknownVisitor, acceptUnknownVisitor, addProblems, addPropertyChangeListener, areEquivalent, buildProblem, buildProblem, buildStateObject, buildStateObjects, checkParent, children, decorate, equals, findIdentificationVariable, firePropertyChanged, getChangeSupport, getDecorator, getGrammar, getManagedTypeProvider, getQueryBuilder, getRoot, getType, getType, getTypeHelper, getTypeRepository, hashCode, isDecorated, parent, parent, parent, removePropertyChangeListener, setExpression, setParent, toString, toString, toStringInternal, toStringItems, toText
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
addPropertyChangeListener, children, decorate, findIdentificationVariable, getDecorator, getGrammar, getManagedTypeProvider, getQueryBuilder, getRoot, isDecorated, removePropertyChangeListener, setParent, toString, toText
public DeleteClauseStateObject(DeleteStatementStateObject parent)
DeleteClauseStateObject
.parent
- The parent of this state object, which cannot be null
java.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 DeleteClause getExpression()
StateObject
representation of the JPQL query
was created by parsing an existing JPQL query.getExpression
in interface StateObject
getExpression
in class AbstractStateObject
StateObject
or null
when the JPQL query is manually created (i.e. not from a string)public java.lang.String getIdentifier()
getIdentifier
in class AbstractModifyClauseStateObject
public DeleteStatementStateObject getParent()
StateObject
.getParent
in interface StateObject
getParent
in class AbstractModifyClauseStateObject
StateObject
, which is null
only when
this is the root of the hierarchypublic void setExpression(DeleteClause 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 DELETE
clause