Package adql.query.from

Interface FromContent

All Superinterfaces:
ADQLObject
All Known Implementing Classes:
ADQLJoin, ADQLTable, CrossJoin, InnerJoin, OuterJoin, SQLServer_InnerJoin, SQLServer_OuterJoin
public interface FromContent extends ADQLObject
Represents the content of the whole or a part of the clause FROM. It could be either a table (ADQLTable) or a join (ADQLJoin).

  • Method Details

    • getDBColumns

      SearchColumnList getDBColumns() throws UnresolvedJoinException
      Gets the list of all columns (~ database metadata) available in this FROM part.

      Note: In the most cases, this list is generated on the fly !

      Returns:
      All the available DBColumns.
      Throws:
      UnresolvedJoinException - If a join is not possible.

    • getTables

      List<ADQLTable> getTables()
      Gets all ADQLTable instances contained in this FROM part (itself included, if it is an ADQLTable).
      Returns:
      The list of all ADQLTables found.

    • getTablesByAlias

      List<ADQLTable> getTablesByAlias(String alias, boolean caseSensitive)
      Gets all the table whose the alias is equals to the given one.

      Note: Theoretically, only one table may be returned. But, since this object may be generated without the parser, it is possible that several ADQLTable objects exits with the same alias (particularly if there are JOIN).

      Parameters:
      alias - Alias of the table(s) to get.
      caseSensitive - true if the research must be made with case-sensitivity, false otherwise.
      Returns:
      The list of all tables found.

    • setPosition

      void setPosition(TextPosition position)
      Set the position of this FromContent in the given ADQL query string.
      Parameters:
      position - New position of this FromContent.
      Since:
      1.4