Ejemplo n.º 1
0
  protected PreparedStatement getExistQuery(Connection conn, DatabaseObjectType type)
      throws SQLException {
    PreparedStatement pstmt = null;

    for (SQLObject existQuery : catalogStore.getExistQueries()) {
      if (type.equals(existQuery.getType())) {
        pstmt = conn.prepareStatement(existQuery.getSql());
        break;
      }
    }

    return pstmt;
  }
Ejemplo n.º 2
0
    protected void validateSQLObject(List<SQLObject> queries, SQLObject testQuery) {
      int occurredCount = 0;

      for (SQLObject query : queries) {
        if (query.getType() == testQuery.getType()) {
          occurredCount++;
        }
      }

      if (occurredCount > 1) {
        throw new TajoInternalError(
            "Duplicate Query type (" + testQuery.getType() + ") has found.");
      }
    }
Ejemplo n.º 3
0
  protected final void acceptChild(SQLASTVisitor visitor, SQLObject child) {
    if (child == null) {
      return;
    }

    child.accept(visitor);
  }
Ejemplo n.º 4
0
  protected String getDropSQL(DatabaseObjectType type, String name) {
    SQLObject foundDropQuery = null;
    String sqlStatement = "DROP " + type.toString() + " " + name;

    for (SQLObject dropQuery : catalogStore.getDropStatements()) {
      if (type == dropQuery.getType()) {
        foundDropQuery = dropQuery;
        break;
      }
    }

    if (foundDropQuery != null
        && foundDropQuery.getSql() != null
        && !foundDropQuery.getSql().isEmpty()) {
      String dropStatement = foundDropQuery.getSql();
      StringBuffer sqlBuffer = new StringBuffer(dropStatement.length() + name.length());
      int identifier = dropStatement.indexOf('?');

      sqlBuffer
          .append(dropStatement.substring(0, identifier))
          .append(name)
          .append(dropStatement.substring(identifier + 1));
      sqlStatement = sqlBuffer.toString();
    }

    return sqlStatement;
  }