Examples of org.apache.ws.jaxme.sqls.Index

org.apache.ws.jaxme.sqls.Index

Interface of an index declaration.
@author Jochen Wiedmann

          }
          isFirstTable = false;
          columnUpdater = new VerNumIncrementer(columnNum);
        } else {
          List pkColumns = new ArrayList();
          Index primaryKey = table.getPrimaryKey();
          if (primaryKey != null) {
            for (Iterator pkIter = primaryKey.getColumns();  pkIter.hasNext();  ) {
              Column pkColumn = (Column) pkIter.next();
              int columnNum = -1;
              int i = 0;
              for (Iterator colIter = table.getColumns();  colIter.hasNext();  i++) {
                Column colIterColumn = (Column) colIter.next();

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  public Table getTable() { return table; }
  public String getQName() { return getTable().getQName() + "." + getName(); }
  public boolean isVirtual() { return false; }


  public boolean isPrimaryKeyPart() {
    Index index = getTable().getPrimaryKey();
    if (index == null) {
      return false;
    }
    for (Iterator iter = index.getColumns();  iter.hasNext();  ) {
      Column column = (Column) iter.next();
      if (column.equals(this)) {
        return true;
      }
    }

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    final String mName = "readPrimaryKey";
    logger.finest(mName, "Looking for primary keys of " + pTable + "=" + pTable.getTable().getQName());
    ResultSet rs = pData.getPrimaryKeys(pTable.getCatalogName(),
                                        pTable.getSchemaName(),
                                        pTable.getTableName());
    Index primaryKey = null;
    boolean isRsClosed = false;
    try {
      while (rs.next()) {
        if (primaryKey == null) {
          primaryKey = pTable.getTable().newPrimaryKey();
        } 


        String columnName = rs.getString(4);
        logger.finest(mName, "Found column " + columnName);
        primaryKey.addColumn(columnName);
      }


      isRsClosed = true;
      rs.close();
    } finally {

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   public Column getColumn(String pName) {
      return getColumn(new ColumnImpl.NameImpl(pName));
   }


  public Index newKey() {
      Index result = new IndexImpl(this, true, false);
      indexes.add(result);
      return result;
  }

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      indexes.add(result);
      return result;
  }


  public Index newIndex() {
      Index result = new IndexImpl(this, false, false);
      indexes.add(result);
      return result;
  }

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      return result;
  }


   public Index getPrimaryKey() {
      for (Iterator iter = getIndexes();  iter.hasNext();  ) {
         Index index = (Index) iter.next();
         if (index.isPrimaryKey()) {
            return index;
         }
      }
      return null;
   }

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   public Iterator getIndexes() {
      return indexes.iterator();
   }


  public Index newPrimaryKey() {
      Index pk = getPrimaryKey();
      if (pk != null) {
         throw new IllegalStateException("A primary key is already defined on table " + getName());
      }
      Index result = new IndexImpl(this, true, true);
      indexes.add(result);
      return result;
  }

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  /** <p>Creates a table with primary key</p>
   */
  protected Table getPrimaryKeyTable() {
    Table table = getBasicTable();
    Index index = table.newPrimaryKey();
    index.addColumn("MyIndex");
    return table;
  }

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  protected Table getComposedKeyTable() {
    Table table = getPrimaryKeyTable();
    Column verNumColumn = table.newColumn("VerNum", Column.Type.INTEGER);
    assertTrue(!verNumColumn.isStringColumn());
    assertTrue(!verNumColumn.isBinaryColumn());
    Index index = table.getPrimaryKey();
    index.addColumn("VerNum");
    return table;
  }

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   */
  public void testIndexNames() {
    SQLGenerator gen = sqlFactory.newSQLGenerator();
    Table table = getBasicTable();
    for (int i = 0;  i < 10;  i++) {
      Index index = table.newIndex();
      index.addColumn("MyName");
      String s = (String) gen.getCreate(index).iterator().next();
      assertEquals("CREATE INDEX MyTable_I" + i + " ON MySchema.MyTable (MyName)", s);
    }


    Collection coll = gen.getCreate(schema, true);

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