Field Detail

• LEFT_STATE_OBJECT_PROPERTY

  public static final String LEFT_STATE_OBJECT_PROPERTY

  Notifies the left state object property has changed.

  See Also:

  Constant Field Values

• RIGHT_STATE_OBJECT_PROPERTY

  public static final String RIGHT_STATE_OBJECT_PROPERTY

  Notifies the right state object property has changed.

  See Also:

  Constant Field Values

Method Detail

• getExpression

  public CompoundExpression 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)

• getIdentifier

  public abstract String getIdentifier()

  Returns the identifier joining the two StateObjects.

  Returns:

  The JPQL identifier join two expressions

• getLeft

  public StateObject getLeft()

  Returns the StateObject that represents the left expression.

  Returns:

  The StateObject representing the left expression

• getRight

  public StateObject getRight()

  Returns the StateObject that represents the right expression.

  Returns:

  The StateObject representing the right expression

• hasLeft

  public boolean hasLeft()

  Determines whether there is a StateObject that represents the left expression.

  Returns:

  true if there is a left StateObject; false if it is null

• hasRight

  public boolean hasRight()

  Determines whether there is a StateObject that represents the right expression.

  Returns:

  true if there is a right StateObject; false if it is null

• 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

• parseLeft

  public void parseLeft​(String jpqlFragment)

  Parses the given JPQL fragment and update the left side of the compound expression.

  Parameters:

  jpqlFragment - The portion of the query to become the left side of the compound expression

• parseRight

  public void parseRight​(String jpqlFragment)

  Parses the given JPQL fragment and update the right side of the compound expression.

  Parameters:

  jpqlFragment - The portion of the query to become the right side of the compound expression

• setLeft

  public void setLeft​(StateObject leftStateObject)

  Sets the left StateObject to become the given object.

  Parameters:

  leftStateObject - The StateObject representing the left expression

• setRight

  public void setRight​(StateObject rightStateObject)

  Sets the right StateObject to become the given object.

  Parameters:

  rightStateObject - The StateObject representing the right expression