Class AbstractConditionalClauseStateObject

  • All Implemented Interfaces:
    StateObject
    Direct Known Subclasses:
    HavingClauseStateObject, WhenClauseStateObject, WhereClauseStateObject

    public abstract class AbstractConditionalClauseStateObject
    extends AbstractStateObject
    Conditional expressions are composed of other conditional expressions, comparison operations, logical operations, path expressions that evaluate to boolean values, boolean literals, and boolean input parameters. Arithmetic expressions can be used in comparison expressions. Arithmetic expressions are composed of other arithmetic expressions, arithmetic operations, path expressions that evaluate to numeric values, numeric literals, and numeric input parameters. Arithmetic operations use numeric promotion. Standard bracketing () for ordering expression evaluation is supported.
    BNF: expression ::= identifier conditional_expression

    Since:
    2.4
    Version:
    2.4
    Author:
    Pascal Filion
    See Also:
    AbstractConditionalClause
    • Field Detail

      • CONDITIONAL_STATE_OBJECT_PROPERTY

        public static final String CONDITIONAL_STATE_OBJECT_PROPERTY
        Notifies the conditional expression property has changed.
        See Also:
        Constant Field Values
    • Method Detail

      • andParse

        public AndExpressionStateObject andParse​(String jpqlFragment)
        Parses the given JPQL fragment as the right side of an AND expression. The current conditional expression will become the left side of the AND expression.
        Parameters:
        jpqlFragment - The portion of the query representing the right side of the AND expression
        Returns:
        The newly created AndExpressionStateObject
      • getConditional

        public StateObject getConditional()
        Returns the state object representing the composition of the conditional expressions.
        Returns:
        The actual conditional expression
      • getIdentifier

        public abstract String getIdentifier()
        Returns the JPQL identifier of this clause.
        Returns:
        The JPQL identifier of this conditional clause
      • hasConditional

        public boolean hasConditional()
        Determines whether the StateObject representing the conditional expression is present or not.
        Returns:
        true if the conditional expression is not null; false otherwise
      • orParse

        public OrExpressionStateObject orParse​(String jpqlFragment)
        Parses the given JPQL fragment as the right side of an OR expression. The current conditional expression will become the left side of the OR expression.
        Parameters:
        jpqlFragment - The portion of the query representing the right side of the OR expression
        Returns:
        The newly created OrExpressionStateObject
      • parse

        public void parse​(String jpqlFragment)
        Parses the given JPQL fragment, which represents a conditional expression, and creates the StateObject.
        Parameters:
        jpqlFragment - The portion of the query representing a conditional expression
      • setConditional

        public void setConditional​(StateObject conditionalStateObject)
        Sets the given StateObject to be the conditional expression of this clause.
        Parameters:
        conditionalStateObject - The new StateObject representing the conditional expression