Examples of org.eclipse.persistence.jpa.jpql.tools.model.query.CaseExpressionStateObject

Package org.eclipse.persistence.jpa.jpql.tools.model.query

Examples of org.eclipse.persistence.jpa.jpql.tools.model.query.CaseExpressionStateObject

org.eclipse.persistence.jpa.jpql.tools.model.query.CaseExpressionStateObject
A CASE predicate is used to calculate a condition and when it's true, its THEN expression will be executed.
BNF: general_case_expression ::= CASE when_clause {when_clause}* ELSE scalar_expression END or
BNF: simple_case_expression ::= CASE case_operand simple_when_clause {simple_when_clause}* ELSE scalar_expression END
@see WhenClauseStateObject @see org.eclipse.persistence.jpa.jpql.parser.CaseExpression CaseExpression @version 2.4 @since 2.4 @author Pascal Filion

   * @param parent The parent of the <code><b>CASE</b></code> expression to build, which is only
   * required when a JPQL fragment needs to be parsed
   */
  protected AbstractCaseExpressionStateObjectBuilder(StateObject parent) {
    super(parent);
    caseExpressionStateObject = new CaseExpressionStateObject(parent);
  }

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    StateObject caseOperand = stateObject;


    expression.getElseExpression().accept(this);
    StateObject elseStateObject = stateObject;


    CaseExpressionStateObject caseExpressionStateObject = new CaseExpressionStateObject(
      parent,
      caseOperand,
      Collections.<WhenClauseStateObject>emptyList(),
      elseStateObject
    );


    whenClauseBuilder().buildStateObject(caseExpressionStateObject, expression);


    caseExpressionStateObject.setExpression(expression);
    this.stateObject = caseExpressionStateObject;
  }

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Related Classes of org.eclipse.persistence.jpa.jpql.tools.model.query.CaseExpressionStateObject

org.eclipse.persistence.jpa.jpql.tools.model.AbstractCaseExpressionStateObjectBuilder

org.eclipse.persistence.jpa.jpql.tools.model.BasicStateObjectBuilder

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