Examples of org.eclipse.persistence.jpa.internal.jpql.parser.StateFieldPathExpression

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

Examples of org.eclipse.persistence.jpa.internal.jpql.parser.StateFieldPathExpression

org.eclipse.persistence.jpa.internal.jpql.parser.StateFieldPathExpression
A single_valued_association_field is designated by the name of an association-field in a one-to-one or many-to-one relationship. The type of a single_valued_association_field and thus a single_valued_association_path_expression is the abstract schema type of the related entity. A collection_valued_association_field is designated by the name of an association-field in a one-to-many or a many-to-many relationship. The type of a collection_valued_association_field is a collection of values of the abstract schema type of the related entity. An embedded_class_state_field is designated by the name of an entity-state field that corresponds to an embedded class. Navigation to a related entity results in a value of the related entity's abstract schema type.

BNF: state_field_path_expression ::= {identification_variable | single_valued_association_path_expression}.state_field

BNF: single_valued_association_path_expression ::= identification_variable.{single_valued_association_field.}*single_valued_association_field
@version 2.3 @since 2.3 @author Pascal Filion

   */
  @Override
  public void visit(NullComparisonExpression expression) {


    // Null comparisons over instances of embeddable class types are not supported
    StateFieldPathExpression pathExpression = stateFieldPathExpression(expression.getExpression());


    if (pathExpression != null) {
      IType type = getType(pathExpression);
      IManagedType managedType = getManagedType(type);


      if (isEmbeddable(managedType)) {
        addProblem(pathExpression, NullComparisonExpression_InvalidType, pathExpression.toParsedText());
        return;
      }
    }


    super.visit(expression);

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     if (ExpressionTools.stringIsNotEmpty(name)) {
      IManagedType managedType = getManagedType(name);


      // Check the existence of the state field on the abstract schema
      if (managedType != null) {
        StateFieldPathExpression pathExpression = stateFieldPathExpression(expression.getStateFieldPathExpression());
        String stateFieldValue = (pathExpression != null) ? pathExpression.toParsedText() : null;


        if (ExpressionTools.stringIsNotEmpty(stateFieldValue)) {


          // State field without a dot
          if (stateFieldValue.indexOf(".") == -1) {

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  private void validateAggregateFunction(AggregateFunction expression) {


    // Arguments to the functions MAX/MIN must correspond to orderable state field types (i.e.,
    // numeric types, string types, character types, or date types)
    StateFieldPathExpression pathExpression = stateFieldPathExpression(expression.getExpression());


    if (pathExpression != null) {
      validateStateFieldPathExpression(pathExpression, false);
    }
  }

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      }
    }
    // The identification variable actually represents a state field path expression that has
    // a virtual identification, validate that state field path expression instead
    else if (virtual) {
      StateFieldPathExpression pathExpression = expression.getStateFieldPathExpression();
      if (pathExpression != null) {
        pathExpression.accept(this);
      }
    }
  }

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   */
  @Override
  public void visit(NullComparisonExpression expression) {


    // Null comparisons over instances of embeddable class types are not supported
    StateFieldPathExpression pathExpression = stateFieldPathExpression(expression.getExpression());


    if (pathExpression != null) {
      IType type = getType(pathExpression);
      IManagedType managedType = getManagedType(type);


      if (isEmbeddable(managedType)) {
        addProblem(pathExpression, NullComparisonExpression_InvalidType, pathExpression.toParsedText());
        return;
      }
    }


    super.visit(expression);

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     if (ExpressionTools.stringIsNotEmpty(name)) {
      IManagedType managedType = getManagedType(name);


      // Check the existence of the state field on the abstract schema
      if (managedType != null) {
        StateFieldPathExpression pathExpression = stateFieldPathExpression(expression.getStateFieldPathExpression());
        String stateFieldValue = (pathExpression != null) ? pathExpression.toParsedText() : null;


        if (ExpressionTools.stringIsNotEmpty(stateFieldValue)) {


          // State field without a dot
          if (stateFieldValue.indexOf(".") == -1) {

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Related Classes of org.eclipse.persistence.jpa.internal.jpql.parser.StateFieldPathExpression

org.eclipse.persistence.jpa.internal.jpql.SemanticValidator

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