Examples of org.eclipse.persistence.jpa.jpql.parser.Expression.accept()

Package org.eclipse.persistence.jpa.jpql.parser

Class org.eclipse.persistence.jpa.jpql.parser.Expression

Examples of org.eclipse.persistence.jpa.jpql.parser.Expression.accept()

org.eclipse.persistence.jpa.jpql.parser.Expression.accept()
Visits this {@link Expression} by the given {@link ExpressionVisitor visitor}. @param visitor The {@link ExpressionVisitor} to visit this object

      if (pathExpression != null) {
        boolean valid = validateStateFieldPathExpression(pathExpression, PathType.ASSOCIATION_FIELD_ONLY);
        updateStatus(result, 0, valid);
      }
      else {
        entityExpression.accept(this);
      }
    }


    // Validate the collection-valued path expression
    boolean valid = validateCollectionValuedPathExpression(expression.getCollectionValuedPathExpression(), true);

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      validator.validatingLeftExpression = true;
      leftExpression.accept(validator);


      // Visit the right expression and gather its information
      validator.validatingLeftExpression = false;
      rightExpression.accept(validator);


      // '<', '<=', '>=', '>'
      if (isOrderComparison(expression)) {


        // The left expression cannot be an identification variable

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      if (pathExpression != null) {
        validateStateFieldPathExpression(pathExpression, validPathExpressionTypeForCountFunction());
      }
      else {
        leftExpression.accept(this);
      }
    }
  }


  /**

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    Expression declarationExpression = declaration.getDeclarationExpression();
    Expression baseExpression = declaration.getBaseExpression();


    try {
      baseExpression.accept(visitor);


      if (!visitor.valid) {


        int startPosition = position(declarationExpression);
        int endPosition = startPosition + length(declarationExpression);

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      if (pathExpression != null) {
        valid = validateStateFieldPathExpression(pathExpression, PathType.BASIC_FIELD_ONLY);
      }
      else {
        encapsulatedExpression.accept(this);
      }
    }


    return valid;
  }

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      if (pathExpression != null) {
        boolean valid = validateStateFieldPathExpression(pathExpression, pathType);
        updateStatus(result, 0, valid);
      }
      else {
        leftExpression.accept(this);
      }
    }


    // Right expression
    if (expression.hasRightExpression()) {

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      if (pathExpression != null) {
        boolean valid = validateStateFieldPathExpression(pathExpression, pathType);
        updateStatus(result, 1, valid);
      }
      else {
        rightExpression.accept(this);
      }
    }


    return result;
  }

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      if (pathExpression != null) {
        validateStateFieldPathExpression(pathExpression, validPathExpressionTypeForInExpression());
      }
      else {
        stringExpression.accept(this);
      }
    }


    // Validate the items
    expression.getInItems().accept(getInItemsVisitor());

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          index--;
        }


        // Now traverse the child
        Expression child = expression.getChild(index);
        child.accept(this);


        // Rather than marking the CollectionExpression as the Expression to visit
        // with the adjusted QueryPosition, the child that to the left of the invalid
        // expression will be used instead.
        // Example: "SELECT e FROM Employee e WHERE CONCAT(e.name, A|S a)" <- | is the cursor

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     */
    public void visit(JPQLExpression expression) {


      if (expression.hasQueryStatement()) {
        Expression queryStatement = expression.getQueryStatement();
        queryStatement.accept(this);
        queryPosition.addPosition(expression, queryStatement.getLength() - correction);
      }
      else {
        queryPosition.setExpression(expression);
        queryPosition.addPosition(expression, 0);

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