Constructor Detail

• CollectionExpressionStateObject

  public CollectionExpressionStateObject​(StateObject parent,
                                         List<? extends StateObject> items)

  Creates a new CollectionExpressionStateObject.

  Parameters:

  parent - The parent of this state object, which cannot be null

  items - The list of children owned by this state object

  Throws:

  NullPointerException - The given parent cannot be null

Method Detail

• accept

  public void accept​(StateObjectVisitor visitor)

  Visits this StateObject by the given visitor.

  Parameters:

  visitor - The visitor to visit this object

• getExpression

  public CollectionExpression getExpression()

  Returns the actual parsed object if this StateObject representation of the JPQL query was created by parsing an existing JPQL query.

  Specified by:

  getExpression in interface StateObject

  Overrides:

  getExpression in class AbstractStateObject

  Returns:

  The parsed object when a JPQL query is parsed and converted into a StateObject or null when the JPQL query is manually created (i.e. not from a string)

• isEquivalent

  public boolean isEquivalent​(StateObject stateObject)

  Determines whether the given StateObject is equivalent to this one, i.e. the information of both StateObject is the same.

  Specified by:

  isEquivalent in interface StateObject

  Overrides:

  isEquivalent in class AbstractStateObject

  Parameters:

  stateObject - The StateObject to compare its content to this one

  Returns:

  true if both object are equivalent; false otherwise

• setExpression

  public void setExpression​(CollectionExpression 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.

  Parameters:

  expression - The parsed object representing a collection expression