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

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

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

org.eclipse.persistence.jpa.jpql.parser.ExistsExpression
An EXISTS expression is a predicate that is true only if the result of the subquery consists of one or more values and that is false otherwise.

BNF: exists_expression ::= [NOT] EXISTS(subquery)
@version 2.4 @since 2.3 @author Pascal Filion


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


      // 'NOT'
      if (stateObject.hasNot()) {
        appendIdentifier((expression != null) ? expression.getActualNotIdentifier() : NOT, NOT);
        writer.append(SPACE);
      }


      // 'EXISTS'
      String actualIdentifier = (expression != null) ? expression.getActualIdentifier() : null;


      if ((actualIdentifier != null) && actualIdentifier.startsWith(NOT)) {
        actualIdentifier = actualIdentifier.substring(4);
      }


      appendIdentifier(actualIdentifier, EXISTS);


      // '('
      if (shouldOutput(expression) || expression.hasLeftParenthesis()) {
        writer.append(formatIdentifier(LEFT_PARENTHESIS));
      }


      // Subquery
      if (stateObject.hasStateObject()) {
        stateObject.getStateObject().accept(this);
      }


      // ')'
      if (shouldOutput(expression) || expression.hasRightParenthesis()) {
        writer.append(formatIdentifier(RIGHT_PARENTHESIS));
      }
    }
  }

View Full Code Here


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


      // 'NOT'
      if (stateObject.hasNot()) {
        appendIdentifier((expression != null) ? expression.getActualNotIdentifier() : NOT, NOT);
        writer.append(SPACE);
      }


      // 'EXISTS'
      String actualIdentifier = (expression != null) ? expression.getActualIdentifier() : null;


      if ((actualIdentifier != null) && actualIdentifier.startsWith(NOT)) {
        actualIdentifier = actualIdentifier.substring(4);
      }


      appendIdentifier(actualIdentifier, EXISTS);


      // '('
      if (shouldOutput(expression) || expression.hasLeftParenthesis()) {
        writer.append(formatIdentifier(LEFT_PARENTHESIS));
      }


      // Subquery
      if (stateObject.hasStateObject()) {
        stateObject.getStateObject().accept(this);
      }


      // ')'
      if (shouldOutput(expression) || expression.hasRightParenthesis()) {
        writer.append(formatIdentifier(RIGHT_PARENTHESIS));
      }
    }
  }

View Full Code Here


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


      // 'NOT'
      if (stateObject.hasNot()) {
        appendIdentifier((expression != null) ? expression.getActualNotIdentifier() : NOT, NOT);
        writer.append(SPACE);
      }


      // 'EXISTS'
      String actualIdentifier = (expression != null) ? expression.getActualIdentifier() : null;


      if ((actualIdentifier != null) && actualIdentifier.startsWith(NOT)) {
        actualIdentifier = actualIdentifier.substring(4);
      }


      appendIdentifier(actualIdentifier, EXISTS);


      // '('
      if (shouldOutput(expression) || expression.hasLeftParenthesis()) {
        writer.append(formatIdentifier(LEFT_PARENTHESIS));
      }


      // Subquery
      if (stateObject.hasStateObject()) {
        stateObject.getStateObject().accept(this);
      }


      // ')'
      if (shouldOutput(expression) || expression.hasRightParenthesis()) {
        writer.append(formatIdentifier(RIGHT_PARENTHESIS));
      }
    }
  }

View Full Code Here


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


      // 'NOT'
      if (stateObject.hasNot()) {
        appendIdentifier((expression != null) ? expression.getActualNotIdentifier() : NOT, NOT);
        writer.append(SPACE);
      }


      // 'EXISTS'
      String actualIdentifier = (expression != null) ? expression.getActualIdentifier() : null;


      if ((actualIdentifier != null) && actualIdentifier.startsWith(NOT)) {
        actualIdentifier = actualIdentifier.substring(4);
      }


      appendIdentifier(actualIdentifier, EXISTS);


      // '('
      if (shouldOutput(expression) || expression.hasLeftParenthesis()) {
        writer.append(formatIdentifier(LEFT_PARENTHESIS));
      }


      // Subquery
      if (stateObject.hasStateObject()) {
        stateObject.getStateObject().accept(this);
      }


      // ')'
      if (shouldOutput(expression) || expression.hasRightParenthesis()) {
        writer.append(formatIdentifier(RIGHT_PARENTHESIS));
      }
    }
  }

View Full Code Here

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

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

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

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