Package org.openrdf.sail.rdbms.algebra

Examples of org.openrdf.sail.rdbms.algebra.SqlCase.when()

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  public void meet(Datatype node)
    throws UnsupportedRdbmsOperatorException
  {
    SqlCase sqlCase = new SqlCase();
    sqlCase.when(isNotNull(type(node.getArg())), type(node.getArg()));
    sqlCase.when(and(isNull(lang(node.getArg())), isNotNull(label(node.getArg()))),
        str(XMLSchema.STRING.stringValue()));
    result = sqlCase;
  }

  @Override
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  {
    boolean divide = node.getParentNode().equals(MathExpr.MathOp.DIVIDE);
    ValueExpr left = node.getLeftArg();
    ValueExpr right = node.getRightArg();
    SqlCase sqlCase = new SqlCase();
    sqlCase.when(in(str(DOUBLE), type(left), type(right)), str(DOUBLE));
    sqlCase.when(in(str(FLOAT), type(left), type(right)), str(FLOAT));
    sqlCase.when(in(str(DECIMAL), type(left), type(right)), str(DECIMAL));
    sqlCase.when(new TrueValue(), divide ? str(DECIMAL) : str(INTEGER));
    result = sqlCase;
  }
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    boolean divide = node.getParentNode().equals(MathExpr.MathOp.DIVIDE);
    ValueExpr left = node.getLeftArg();
    ValueExpr right = node.getRightArg();
    SqlCase sqlCase = new SqlCase();
    sqlCase.when(in(str(DOUBLE), type(left), type(right)), str(DOUBLE));
    sqlCase.when(in(str(FLOAT), type(left), type(right)), str(FLOAT));
    sqlCase.when(in(str(DECIMAL), type(left), type(right)), str(DECIMAL));
    sqlCase.when(new TrueValue(), divide ? str(DECIMAL) : str(INTEGER));
    result = sqlCase;
  }
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    ValueExpr left = node.getLeftArg();
    ValueExpr right = node.getRightArg();
    SqlCase sqlCase = new SqlCase();
    sqlCase.when(in(str(DOUBLE), type(left), type(right)), str(DOUBLE));
    sqlCase.when(in(str(FLOAT), type(left), type(right)), str(FLOAT));
    sqlCase.when(in(str(DECIMAL), type(left), type(right)), str(DECIMAL));
    sqlCase.when(new TrueValue(), divide ? str(DECIMAL) : str(INTEGER));
    result = sqlCase;
  }

  @Override
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    ValueExpr right = node.getRightArg();
    SqlCase sqlCase = new SqlCase();
    sqlCase.when(in(str(DOUBLE), type(left), type(right)), str(DOUBLE));
    sqlCase.when(in(str(FLOAT), type(left), type(right)), str(FLOAT));
    sqlCase.when(in(str(DECIMAL), type(left), type(right)), str(DECIMAL));
    sqlCase.when(new TrueValue(), divide ? str(DECIMAL) : str(INTEGER));
    result = sqlCase;
  }

  @Override
  public void meet(Str node)
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  }

  public static SqlExpr coalesce(SqlExpr... exprs) {
    SqlCase sqlCase = new SqlCase();
    for (SqlExpr expr : exprs) {
      sqlCase.when(isNotNull(expr.clone()), expr);
    }
    return sqlCase;
  }

  public static SqlExpr concat(SqlExpr left, SqlExpr right) {
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