public class ConcatExpressionStateObject extends AbstractListHolderStateObject<StateObject>
CONCAT function returns a string that is a concatenation of its arguments.
JPA 1.0:
expression ::= CONCAT(string_primary, string_primary)JPA 2.0
expression ::= CONCAT(string_primary, string_primary {, string_primary}*)ConcatExpression| Modifier and Type | Field and Description |
|---|---|
static java.lang.String |
STRING_PRIMARY_STATE_OBJECT_LIST
Notifies the content of the list of
StateObject representing the string primaries
has changed. |
| Constructor and Description |
|---|
ConcatExpressionStateObject(StateObject parent)
Creates a new
ConcatExpressionStateObject. |
ConcatExpressionStateObject(StateObject parent,
java.util.List<? extends StateObject> stateObjects)
Creates a new
ConcatExpressionStateObject. |
ConcatExpressionStateObject(StateObject parent,
StateObject... stateObjects)
Creates a new
ConcatExpressionStateObject. |
| Modifier and Type | Method and Description |
|---|---|
void |
accept(StateObjectVisitor visitor)
Visits this
StateObject by the given visitor. |
ConcatExpression |
getExpression()
Returns the actual parsed object if this
StateObject representation of the JPQL query
was created by parsing an existing JPQL query. |
boolean |
isEquivalent(StateObject stateObject)
Determines whether the given
StateObject is equivalent to this one, i.e. the
information of both StateObject is the same. |
protected java.lang.String |
listName()
Returns the name that is uniquely identifying the list.
|
void |
setExpression(ConcatExpression 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. |
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. |
addChildren, addItem, addItems, addListChangeListener, areChildrenEquivalent, canMoveDown, canMoveUp, getItem, hasItems, initialize, items, itemsSize, moveDown, moveUp, removeItem, removeItems, removeListChangeListener, toStringItemsacceptUnknownVisitor, 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, toTextclone, finalize, getClass, notify, notifyAll, wait, wait, waitaddPropertyChangeListener, children, decorate, findIdentificationVariable, getDeclaration, getDecorator, getGrammar, getManagedTypeProvider, getParent, getQueryBuilder, getRoot, isDecorated, removePropertyChangeListener, setParent, toString, toTextpublic static final java.lang.String STRING_PRIMARY_STATE_OBJECT_LIST
StateObject representing the string primaries
has changed.public ConcatExpressionStateObject(StateObject parent)
ConcatExpressionStateObject.parent - The parent of this state object, which cannot be nulljava.lang.NullPointerException - The given parent cannot be nullpublic ConcatExpressionStateObject(StateObject parent, java.util.List<? extends StateObject> stateObjects)
ConcatExpressionStateObject.stateObjects - The list of StateObject representing the encapsulated expressionspublic ConcatExpressionStateObject(StateObject parent, StateObject... stateObjects)
ConcatExpressionStateObject.parent - The parent of this state object, which cannot be nullstateObjects - The list of StateObject representing the encapsulated expressionsjava.lang.NullPointerException - The given parent cannot be nullpublic void accept(StateObjectVisitor visitor)
StateObject by the given visitor.visitor - The visitor to visit this objectpublic ConcatExpression 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 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 otherwiseprotected java.lang.String listName()
listName in class AbstractListHolderStateObject<StateObject>public void setExpression(ConcatExpression 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 CONCAT
expressionprotected 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