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

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

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

org.eclipse.persistence.jpa.jpql.tools.model.query.IndexExpressionStateObject
The INDEX function returns an integer value corresponding to the position of its argument in an ordered list. The INDEX function can only be applied to identification variables denoting types for which an order column has been specified.

BNF: expression ::= INDEX(identification_variable)
@see IndexExpression @version 2.4 @since 2.4 @author Pascal Filion


  /**
   * {@inheritDoc}
   */
  public T index(String variable) {
    StateObject stateObject = new IndexExpressionStateObject(parent, variable);
    add(stateObject);
    return (T) this;
  }

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   * {@inheritDoc}
   */
  @Override
  public void visit(IndexExpression expression) {


    IndexExpressionStateObject stateObject = new IndexExpressionStateObject(
      parent,
      literal(expression.getExpression(), LiteralType.IDENTIFICATION_VARIABLE)
    );


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

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

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

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

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