public class WhereClauseStateObject extends AbstractConditionalClauseStateObject
WHERE
clause of a query consists of a conditional expression used to
select objects or values that satisfy the expression. The WHERE
clause
restricts the result of a select statement or the scope of an update or delete operation.
where_clause ::= WHERE conditional_expression
WhereClause
CONDITIONAL_STATE_OBJECT_PROPERTY
Constructor and Description |
---|
WhereClauseStateObject(AbstractModifyStatementStateObject parent)
Creates a new
WhereClauseStateObject . |
WhereClauseStateObject(AbstractSelectStatementStateObject parent)
Creates a new
WhereClauseStateObject . |
Modifier and Type | Method and Description |
---|---|
void |
accept(StateObjectVisitor visitor)
Visits this
StateObject by the given visitor . |
WhereClause |
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.
|
void |
setExpression(WhereClause 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, andParse, getBuilder, getConditional, hasConditional, isEquivalent, orParse, parse, setConditional, shouldEncapsulateORExpression, 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 WhereClauseStateObject(AbstractModifyStatementStateObject parent)
WhereClauseStateObject
.parent
- The parent of this state object, which cannot be null
java.lang.NullPointerException
- The given parent cannot be null
public WhereClauseStateObject(AbstractSelectStatementStateObject parent)
WhereClauseStateObject
.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 WhereClause 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 AbstractConditionalClauseStateObject
public void setExpression(WhereClause 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 Where
clause