Package org.openrdf.sail.rdbms.algebra

Examples of org.openrdf.sail.rdbms.algebra.SqlIsNull

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  public static SqlExpr isNotNull(SqlExpr arg) {
    return not(isNull(arg));
  }

  public static SqlExpr isNull(SqlExpr arg) {
    return new SqlIsNull(arg);
  }
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        replace(node, new SqlNull());
      }
      else if (entry.getCondition() instanceof SqlNot) {
        SqlNot not = (SqlNot)entry.getCondition();
        if (not.getArg() instanceof SqlIsNull) {
          SqlIsNull is = (SqlIsNull)not.getArg();
          if (is.getArg().equals(entry.getResult())) {
            replace(node, entry.getResult().clone());
          }
        }
      }
    }
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  private void append(SqlNot expr, SqlExprBuilder filter)
    throws UnsupportedRdbmsOperatorException
  {
    if (expr.getArg() instanceof SqlIsNull) {
      SqlIsNull arg = (SqlIsNull)expr.getArg();
      dispatch(arg.getArg(), filter);
      filter.isNotNull();
    }
    else {
      SqlBracketBuilder open = filter.not();
      dispatch(expr.getArg(), open);
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  public static SqlExpr isNotNull(SqlExpr arg) {
    return not(isNull(arg));
  }

  public static SqlExpr isNull(SqlExpr arg) {
    return new SqlIsNull(arg);
  }
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  }

  private void append(SqlNot expr, SqlExprBuilder filter)
      throws UnsupportedRdbmsOperatorException {
    if (expr.getArg() instanceof SqlIsNull) {
      SqlIsNull arg = (SqlIsNull) expr.getArg();
      dispatch(arg.getArg(), filter);
      filter.isNotNull();
    } else {
      SqlBracketBuilder open = filter.not();
      dispatch(expr.getArg(), open);
      open.close();
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        replace(node, new SqlNull());
      }
      else if (entry.getCondition() instanceof SqlNot) {
        SqlNot not = (SqlNot)entry.getCondition();
        if (not.getArg() instanceof SqlIsNull) {
          SqlIsNull is = (SqlIsNull)not.getArg();
          if (is.getArg().equals(entry.getResult())) {
            replace(node, entry.getResult().clone());
          }
        }
      }
    }
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Related Classes of org.openrdf.sail.rdbms.algebra.SqlIsNull

  • org.openrdf.sail.rdbms.algebra.base.SqlExprSupport
  • org.openrdf.sail.rdbms.evaluation.QueryBuilder
  • org.openrdf.sail.rdbms.optimizers.SqlConstantOptimizer
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