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

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

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

org.eclipse.persistence.jpa.jpql.parser.Join
A JOIN enables the fetching of an association as a side effect of the execution of a query. A JOIN is specified over an entity and its related entities.

BNF: join ::= join_spec join_association_path_expression [AS] identification_variable
A JOIN FETCH enables the fetching of an association as a side effect of the execution of a query. A JOIN FETCH is specified over an entity and its related entities.

BNF: fetch_join ::= join_spec FETCH join_association_path_expression
@version 2.4.2 @since 2.3 @author Pascal Filion

        List<Join> joins = declaration.getJoins();
        int endIndex = (index == variableNameIndex) ? joinIndex : joins.size();


        for (int subIndex = joinIndex; subIndex < endIndex; subIndex++) {


          Join join = joins.get(subIndex);


          String joinVariableName = literal(
            join.getIdentificationVariable(),
            LiteralType.IDENTIFICATION_VARIABLE
          );


          if (variableName.equalsIgnoreCase(joinVariableName)) {
            return true;

View Full Code Here


    List<Join> joins = declaration.getJoins();


    for (int joinIndex = 0, joinCount = joins.size(); joinIndex < joinCount; joinIndex++) {


      Join join = joins.get(joinIndex);


      // Retrieve the identification variable from the join association path
      String variableName = literal(
        join.getJoinAssociationPath(),
        LiteralType.PATH_EXPRESSION_IDENTIFICATION_VARIABLE
      );


      // Make sure the identification variable is defined before the JOIN expression
      if (ExpressionTools.stringIsNotEmpty(variableName) &&
          isIdentificationVariableDeclaredAfter(variableName, index, joinIndex, declarations)) {


        int startPosition = position(join.getJoinAssociationPath());
        int endPosition   = startPosition + variableName.length();


        addProblem(
          expression,
          startPosition,

View Full Code Here


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


      // JOIN
      appendIdentifier((expression != null) ? expression.getActualIdentifier() : stateObject.getJoinType(), stateObject.getJoinType());


      if (shouldOutput(expression) || expression.hasSpaceAfterJoin()) {
        writer.append(SPACE);
      }


      // Join association path
      stateObject.getJoinAssociationPathStateObject().accept(this);


      // Check first if the JOIN FETCH is allowed to have an identification variable
      if (stateObject.hasFetch()) {
        if (expression.hasAs()) {
          writer.append(SPACE);
        }
      }
      // JOIN always needs a whitespace
      else {
        if (shouldOutput(expression) || expression.hasSpaceAfterJoinAssociation()) {
          writer.append(SPACE);
        }
      }


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


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


        if (shouldOutput(expression) || expression.hasSpaceAfterAs()) {
          writer.append(SPACE);
        }
      }


      // Identification variable

View Full Code Here

        List<Join> joins = declaration.getJoins();
        int endIndex = (index == variableNameIndex) ? joinIndex : joins.size();


        for (int subIndex = joinIndex; subIndex < endIndex; subIndex++) {


          Join join = joins.get(subIndex);


          String joinVariableName = literal(
            join.getIdentificationVariable(),
            LiteralType.IDENTIFICATION_VARIABLE
          );


          if (variableName.equalsIgnoreCase(joinVariableName)) {
            return true;

View Full Code Here


    List<Join> joins = declaration.getJoins();


    for (int joinIndex = 0, joinCount = joins.size(); joinIndex < joinCount; joinIndex++) {


      Join join = joins.get(joinIndex);


      // Retrieve the identification variable from the join association path
      String variableName = literal(
        join.getJoinAssociationPath(),
        LiteralType.PATH_EXPRESSION_IDENTIFICATION_VARIABLE
      );


      // Make sure the identification variable is defined before the JOIN expression
      if (ExpressionTools.stringIsNotEmpty(variableName) &&
          isIdentificationVariableDeclaredAfter(variableName, index, joinIndex, declarations)) {


        int startPosition = position(join.getJoinAssociationPath());
        int endPosition   = startPosition + variableName.length();


        addProblem(
          expression,
          startPosition,

View Full Code Here

        List<Join> joins = declaration.getJoins();
        int endIndex = (index == variableNameIndex) ? joinIndex : joins.size();


        for (int subIndex = joinIndex; subIndex < endIndex; subIndex++) {


          Join join = joins.get(subIndex);


          String joinVariableName = literal(
            join.getIdentificationVariable(),
            LiteralType.IDENTIFICATION_VARIABLE
          );


          if (variableName.equalsIgnoreCase(joinVariableName)) {
            return true;

View Full Code Here


    List<Join> joins = declaration.getJoins();


    for (int joinIndex = 0, joinCount = joins.size(); joinIndex < joinCount; joinIndex++) {


      Join join = joins.get(joinIndex);


      // Retrieve the identification variable from the join association path
      String variableName = literal(
        join.getJoinAssociationPath(),
        LiteralType.PATH_EXPRESSION_IDENTIFICATION_VARIABLE
      );


      // Make sure the identification variable is defined before the JOIN expression
      if (ExpressionTools.stringIsNotEmpty(variableName) &&
          isIdentificationVariableDeclaredAfter(variableName, index, joinIndex, declarations)) {


        int startPosition = position(join.getJoinAssociationPath());
        int endPosition   = startPosition + variableName.length();


        addProblem(
          expression,
          startPosition,

View Full Code Here


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


      // JOIN
      appendIdentifier((expression != null) ? expression.getActualIdentifier() : stateObject.getJoinType(), stateObject.getJoinType());


      if (shouldOutput(expression) || expression.hasSpaceAfterJoin()) {
        writer.append(SPACE);
      }


      // Join association path
      stateObject.getJoinAssociationPathStateObject().accept(this);


      // Check first if the JOIN FETCH is allowed to have an identification variable
      if (stateObject.hasFetch()) {
        if (expression.hasAs()) {
          writer.append(SPACE);
        }
      }
      // JOIN always needs a whitespace
      else {
        if (shouldOutput(expression) || expression.hasSpaceAfterJoinAssociation()) {
          writer.append(SPACE);
        }
      }


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


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


        if (shouldOutput(expression) || expression.hasSpaceAfterAs()) {
          writer.append(SPACE);
        }
      }


      // Identification variable

View Full Code Here

        List<Join> joins = declaration.getJoins();
        int endIndex = (index == variableNameIndex) ? joinIndex : joins.size();


        for (int subIndex = joinIndex; subIndex < endIndex; subIndex++) {


          Join join = joins.get(subIndex);


          String joinVariableName = literal(
            join.getIdentificationVariable(),
            LiteralType.IDENTIFICATION_VARIABLE
          );


          if (variableName.equalsIgnoreCase(joinVariableName)) {
            return true;

View Full Code Here


    List<Join> joins = declaration.getJoins();


    for (int joinIndex = 0, joinCount = joins.size(); joinIndex < joinCount; joinIndex++) {


      Join join = joins.get(joinIndex);


      // Retrieve the identification variable from the join association path
      String variableName = literal(
        join.getJoinAssociationPath(),
        LiteralType.PATH_EXPRESSION_IDENTIFICATION_VARIABLE
      );


      // Make sure the identification variable is defined before the JOIN expression
      if (ExpressionTools.stringIsNotEmpty(variableName) &&
          isIdentificationVariableDeclaredAfter(variableName, index, joinIndex, declarations)) {


        int startPosition = position(join.getJoinAssociationPath());
        int endPosition   = startPosition + variableName.length();


        addProblem(
          expression,
          startPosition,

View Full Code Here

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