public class NullComparisonExpressionStateObject extends AbstractStateObject
NULL value.
null_comparison_expression ::= {single_valued_path_expression | input_parameter} IS [NOT] NULLNullComparisonExpression| Modifier and Type | Field and Description |
|---|---|
static java.lang.String |
NOT_PROPERTY
Notifies the visibility of the
NOT identifier has changed. |
static java.lang.String |
STATE_OBJECT_PROPERTY
Notifies the state object property has changed.
|
| Constructor and Description |
|---|
NullComparisonExpressionStateObject(StateObject parent)
Creates a new
NullComparisonExpressionStateObject. |
NullComparisonExpressionStateObject(StateObject parent,
boolean not,
StateObject stateObject)
Creates a new
NullComparisonExpressionStateObject. |
NullComparisonExpressionStateObject(StateObject parent,
boolean not,
java.lang.String path)
Creates a new
NullComparisonExpressionStateObject. |
NullComparisonExpressionStateObject(StateObject parent,
StateObject stateObject)
Creates a new
NullComparisonExpressionStateObject. |
NullComparisonExpressionStateObject(StateObject parent,
java.lang.String path)
Creates a new
NullComparisonExpressionStateObject. |
| Modifier and Type | Method and Description |
|---|---|
void |
accept(StateObjectVisitor visitor)
Visits this
StateObject by the given visitor. |
protected void |
addChildren(java.util.List<StateObject> children)
Adds the children of this
StateObject to the given list. |
NullComparisonExpressionStateObject |
addNot()
Makes sure the
NOT identifier is specified. |
NullComparisonExpression |
getExpression()
Returns the actual parsed object if this
StateObject representation of the JPQL query
was created by parsing an existing JPQL query. |
StateObject |
getStateObject()
Returns the
StateObject representing the collection-valued path expression. |
boolean |
hasNot()
Determines whether the
NOT identifier is used or not. |
boolean |
hasStateObject()
Determines whether there is a
StateObject representing the collection-valued path
expression. |
boolean |
isEquivalent(StateObject stateObject)
Determines whether the given
StateObject is equivalent to this one, i.e. the
information of both StateObject is the same. |
void |
removeNot()
Makes sure the
NOT identifier is not specified. |
void |
setExpression(NullComparisonExpression 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 |
setNot(boolean not)
Sets whether the
NOT identifier should be part of the expression or not. |
void |
setStateObject(StateObject stateObject)
Sets the given
StateObject as the collection-valued path expression. |
void |
toggleNot()
Changes the visibility state of the
NOT identifier. |
protected void |
toTextInternal(java.lang.Appendable writer)
Prints out a string representation of this
StateObject, which should not be used to
define a true string representation of a JPQL query but should be used for
debugging purposes. |
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, toTextpublic static final java.lang.String NOT_PROPERTY
NOT identifier has changed.public static final java.lang.String STATE_OBJECT_PROPERTY
public NullComparisonExpressionStateObject(StateObject parent)
NullComparisonExpressionStateObject.parent - The parent of this state object, which cannot be nulljava.lang.NullPointerException - The given parent cannot be nullpublic NullComparisonExpressionStateObject(StateObject parent, boolean not, StateObject stateObject)
NullComparisonExpressionStateObject.parent - The parent of this state object, which cannot be nullnot - Determines whether the NOT identifier is part of the expression
or notstateObject - The StateObject representing the collection-valued path expressionjava.lang.NullPointerException - The given parent cannot be nullpublic NullComparisonExpressionStateObject(StateObject parent, boolean not, java.lang.String path)
NullComparisonExpressionStateObject.parent - The parent of this state object, which cannot be nullnot - Determines whether the NOT identifier is part of the expression
or notpath - Either the singled-valued path expression or the input parameterjava.lang.NullPointerException - The given parent cannot be nullpublic NullComparisonExpressionStateObject(StateObject parent, StateObject stateObject)
NullComparisonExpressionStateObject.parent - The parent of this state object, which cannot be nullstateObject - The StateObject representing the collection-valued path expressionjava.lang.NullPointerException - The given parent cannot be nullpublic NullComparisonExpressionStateObject(StateObject parent, java.lang.String path)
NullComparisonExpressionStateObject.parent - The parent of this state object, which cannot be nullpath - Either the singled-valued path expression or the input parameterjava.lang.NullPointerException - The given parent cannot be nullpublic void accept(StateObjectVisitor visitor)
StateObject by the given visitor.visitor - The visitor to visit this objectprotected void addChildren(java.util.List<StateObject> children)
StateObject to the given list.addChildren in class AbstractStateObjectchildren - The list used to store the childrenpublic NullComparisonExpressionStateObject addNot()
NOT identifier is specified.public NullComparisonExpression getExpression()
StateObject representation of the JPQL query
was created by parsing an existing JPQL query.getExpression in interface StateObjectgetExpression in class AbstractStateObjectStateObject
or null when the JPQL query is manually created (i.e. not from a string)public StateObject getStateObject()
StateObject representing the collection-valued path expression.StateObject representing the collection-valued path expressionpublic boolean hasNot()
NOT identifier is used or not.true if the NOT identifier is part of the expression;
false otherwisepublic boolean hasStateObject()
StateObject representing the collection-valued path
expression.true if the StateObject is not null; false
otherwisepublic boolean isEquivalent(StateObject stateObject)
StateObject is equivalent to this one, i.e. the
information of both StateObject is the same.isEquivalent in interface StateObjectisEquivalent in class AbstractStateObjectstateObject - The StateObject to compare its content to this onetrue if both object are equivalent; false otherwisepublic void removeNot()
NOT identifier is not specified.public void setExpression(NullComparisonExpression 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 the null
expressionpublic void setNot(boolean not)
NOT identifier should be part of the expression or not.not - true if the NOT identifier should be part of the
expression; false otherwisepublic void setStateObject(StateObject stateObject)
StateObject as the collection-valued path expression.stateObject - The StateObject that represents the collection-valued path expressionpublic void toggleNot()
NOT identifier.protected void toTextInternal(java.lang.Appendable writer)
throws java.io.IOException
StateObject, which should not be used to
define a true string representation of a JPQL query but should be used for
debugging purposes.toTextInternal in class AbstractStateObjectwriter - The writer used to print out the string representationjava.io.IOException - This should never happens, it is only required because Appendable
is used instead of any concrete class