Examples of org.eclipse.persistence.jpa.jpql.parser.RangeVariableDeclaration

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

Examples of org.eclipse.persistence.jpa.jpql.parser.RangeVariableDeclaration

org.eclipse.persistence.jpa.jpql.parser.RangeVariableDeclaration
Range variable declarations allow the developer to designate a "root" for objects which may not be reachable by navigation. In order to select values by comparing more than one instance of an entity abstract schema type, more than one identification variable ranging over the abstract schema type is needed in the FROM clause.
JPA:
BNF: range_variable_declaration ::= abstract_schema_name [AS] identification_variable
EclipseLink 2.4:
BNF: range_variable_declaration ::= { root_object } [AS] identification_variable BNF: root_object ::= abstract_schema_name | (subquery)
@version 2.4.2 @since 2.3 @author Pascal Filion

    // called by HermesParser.buildSelectionCriteria()
    populated = true;
    resultVariables = Collections.emptySet();


    // Create the "virtual" range variable declaration
    RangeVariableDeclaration rangeVariableDeclaration = new RangeVariableDeclaration(
      entityName,
      variableName
    );


    // Make sure the identification variable was not declared more than once,
    // this could cause issues when trying to resolve it
    RangeDeclaration declaration = new RangeDeclaration(queryContext);
    declaration.rootPath               = entityName;
    declaration.baseExpression         = rangeVariableDeclaration;
    declaration.identificationVariable = (IdentificationVariable) rangeVariableDeclaration.getIdentificationVariable();


    declarations.add(declaration);


    // Make sure it is marked as the base declaration and the base Expression is created
    if (baseDeclaration == null) {

View Full Code Here

  /**
   * {@inheritDoc}
   */
  @Override
  Expression buildQueryExpression() {
    RangeVariableDeclaration declaration = (RangeVariableDeclaration) getBaseExpression();
    Expression expressoin = queryContext.buildExpression(declaration.getRootObject());
    return queryContext.getBaseExpression().getAlias(expressoin);
  }

View Full Code Here

        addEntities();
      }
      // After "<range variable declaration> "
      else if (expression.hasRangeVariableDeclaration()) {


        RangeVariableDeclaration rangeVariableDeclaration = findRangeVariableDeclaration(expression);


        if ((rangeVariableDeclaration != null) &&
             rangeVariableDeclaration.hasRootObject() &&
             rangeVariableDeclaration.hasSpaceAfterRootObject()) {


          length += rangeVariableDeclaration.getRootObject().getLength() + SPACE_LENGTH;


          // Example: "UPDATE System s"
          if (!expression.hasSet()        &&
              !rangeVariableDeclaration.hasAs() &&
              isPositionWithin(position, length, SET)) {


            addIdentifier(SET);
          }
          // Example: "UPDATE System s "
          // Example: "UPDATE System AS s "
          else {


            if (rangeVariableDeclaration.hasAs()) {
              length += 2;
            }


            if (rangeVariableDeclaration.hasSpaceAfterAs()) {
              length++;
            }


            if (rangeVariableDeclaration.hasIdentificationVariable()) {
              length += rangeVariableDeclaration.getIdentificationVariable().getLength();
            }


            if (expression.hasSpaceAfterRangeVariableDeclaration()) {
              length++;
            }


            // Within "SET"
            if ((rangeVariableDeclaration.hasAs() && rangeVariableDeclaration.hasIdentificationVariable() ||
                !rangeVariableDeclaration.hasAs() && rangeVariableDeclaration.hasIdentificationVariable()) &&
                isPositionWithin(position, length, SET)) {


              addIdentifier(SET);
            }
            // After "SET "

View Full Code Here


    if (stateObject.isDecorated()) {
      toText(stateObject);
    }
    else {
      RangeVariableDeclaration expression = stateObject.getExpression();


      // "Root" object (abstract schema name or derived declaration)
      stateObject.getRootStateObject().accept(this);


      if (exactMatch && (expression != null) && expression.hasSpaceAfterRootObject()) {
        writer.append(SPACE);
      }


      // 'AS'
      if (stateObject.hasAs()) {


        if (!exactMatch || (expression == null)) {
          writer.append(SPACE);
        }


        appendIdentifier((expression != null) ? expression.getActualAsIdentifier() : AS, AS);
      }


      if (exactMatch && (expression != null) && expression.hasSpaceAfterAs()) {
        writer.append(SPACE);
      }


      // Identification variable
      if (stateObject.hasIdentificationVariable() &&

View Full Code Here

        addEntities();
      }
      // After "<range variable declaration> "
      else if (expression.hasRangeVariableDeclaration()) {


        RangeVariableDeclaration rangeVariableDeclaration = findRangeVariableDeclaration(expression);


        if ((rangeVariableDeclaration != null) &&
             rangeVariableDeclaration.hasRootObject() &&
             rangeVariableDeclaration.hasSpaceAfterRootObject()) {


          length += rangeVariableDeclaration.getRootObject().getLength() + SPACE_LENGTH;


          // Example: "UPDATE System s"
          if (!expression.hasSet()        &&
              !rangeVariableDeclaration.hasAs() &&
              isPositionWithin(position, length, SET)) {


            addIdentifier(SET);
          }
          // Example: "UPDATE System s "
          // Example: "UPDATE System AS s "
          else {


            if (rangeVariableDeclaration.hasAs()) {
              length += 2;
            }


            if (rangeVariableDeclaration.hasSpaceAfterAs()) {
              length++;
            }


            if (rangeVariableDeclaration.hasIdentificationVariable()) {
              length += rangeVariableDeclaration.getIdentificationVariable().getLength();
            }


            if (expression.hasSpaceAfterRangeVariableDeclaration()) {
              length++;
            }


            // Within "SET"
            if ((rangeVariableDeclaration.hasAs() && rangeVariableDeclaration.hasIdentificationVariable() ||
                !rangeVariableDeclaration.hasAs() && rangeVariableDeclaration.hasIdentificationVariable()) &&
                isPositionWithin(position, length, SET)) {


              addIdentifier(SET);
            }
            // After "SET "

View Full Code Here

  /**
   * {@inheritDoc}
   */
  @Override
  Expression buildQueryExpression() {
    RangeVariableDeclaration declaration = (RangeVariableDeclaration) getBaseExpression();
    Expression expressoin = queryContext.buildExpression(declaration.getRootObject());
    return queryContext.getBaseExpression().getAlias(expressoin);
  }

View Full Code Here

    // called by HermesParser.buildSelectionCriteria()
    populated = true;
    resultVariables = Collections.emptySet();


    // Create the "virtual" range variable declaration
    RangeVariableDeclaration rangeVariableDeclaration = new RangeVariableDeclaration(
      entityName,
      variableName
    );


    // Make sure the identification variable was not declared more than once,
    // this could cause issues when trying to resolve it
    RangeDeclaration declaration = new RangeDeclaration(queryContext);
    declaration.rootPath               = entityName;
    declaration.baseExpression         = rangeVariableDeclaration;
    declaration.identificationVariable = (IdentificationVariable) rangeVariableDeclaration.getIdentificationVariable();


    declarations.add(declaration);


    // Make sure it is marked as the base declaration and the base Expression is created
    if (baseDeclaration == null) {

View Full Code Here

  /**
   * {@inheritDoc}
   */
  @Override
  Expression buildQueryExpression() {
    RangeVariableDeclaration declaration = (RangeVariableDeclaration) getBaseExpression();
    Expression expressoin = queryContext.buildExpression(declaration.getRootObject());
    return queryContext.getBaseExpression().getAlias(expressoin);
  }

View Full Code Here

    // called by HermesParser.buildSelectionCriteria()
    populated = true;
    resultVariables = Collections.emptySet();


    // Create the "virtual" range variable declaration
    RangeVariableDeclaration rangeVariableDeclaration = new RangeVariableDeclaration(
      entityName,
      variableName
    );


    // Make sure the identification variable was not declared more than once,
    // this could cause issues when trying to resolve it
    RangeDeclaration declaration = new RangeDeclaration(queryContext);
    declaration.rootPath               = entityName;
    declaration.baseExpression         = rangeVariableDeclaration;
    declaration.identificationVariable = (IdentificationVariable) rangeVariableDeclaration.getIdentificationVariable();


    declarations.add(declaration);


    // Make sure it is marked as the base declaration and the base Expression is created
    if (baseDeclaration == null) {

View Full Code Here

        addEntities();
      }
      // After "<range variable declaration> "
      else if (expression.hasRangeVariableDeclaration()) {


        RangeVariableDeclaration rangeVariableDeclaration = findRangeVariableDeclaration(expression);


        if ((rangeVariableDeclaration != null) &&
             rangeVariableDeclaration.hasRootObject() &&
             rangeVariableDeclaration.hasSpaceAfterRootObject()) {


          length += length(rangeVariableDeclaration.getRootObject()) + SPACE_LENGTH;


          // Example: "UPDATE System s"
          if (!expression.hasSet()        &&
              !rangeVariableDeclaration.hasAs() &&
              isPositionWithin(position, length, SET)) {


            addIdentifier(SET);
          }
          // Example: "UPDATE System s "
          // Example: "UPDATE System AS s "
          else {


            if (rangeVariableDeclaration.hasAs()) {
              length += 2;
            }


            if (rangeVariableDeclaration.hasSpaceAfterAs()) {
              length++;
            }


            if (rangeVariableDeclaration.hasIdentificationVariable()) {
              length += length(rangeVariableDeclaration.getIdentificationVariable());
            }


            if (expression.hasSpaceAfterRangeVariableDeclaration()) {
              length++;
            }


            // Within "SET"
            if ((rangeVariableDeclaration.hasAs() && rangeVariableDeclaration.hasIdentificationVariable() ||
                !rangeVariableDeclaration.hasAs() && rangeVariableDeclaration.hasIdentificationVariable()) &&
                isPositionWithin(position, length, SET)) {


              addIdentifier(SET);
            }
            // After "SET "

View Full Code Here

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Related Classes of org.eclipse.persistence.jpa.jpql.parser.RangeVariableDeclaration

org.eclipse.persistence.internal.jpa.jpql.DeclarationResolver

org.eclipse.persistence.internal.jpa.jpql.SubqueryDeclaration

org.eclipse.persistence.jpa.jpql.AbstractContentAssistVisitor

org.eclipse.persistence.jpa.jpql.model.AbstractActualJPQLQueryFormatter

org.eclipse.persistence.jpa.jpql.tools.AbstractContentAssistVisitor

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

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