Examples of com.datastax.driver.core.ColumnDefinitions

com.datastax.driver.core.ColumnDefinitions
Metadata describing the columns returned in a {@link ResultSet} or a{@link PreparedStatement}.
A {@code columnDefinitions}} instance is mainly a list of {@code ColumnsDefinitions.Definition}. The definitions or metadata for a column can be accessed either by:
- index (indexed from 0)
- name
When accessed by name, column selection is case insensitive. In case multiple columns only differ by the case of their name, then the column returned with be the first column that has been defined in CQL without forcing case sensitivity (that is, it has either been defined without quotes or is fully lowercase). If none of the columns have been defined in this manner, the first column matching (with case insensitivity) is returned. You can force the case of a selection by double quoting the name.
For example:
- If {@code cd} contains column {@code fOO}, then {@code cd.contains("foo")}, {@code cd.contains("fOO")} and {@code cd.contains("Foo")} will return {@code true}.
- If {@code cd} contains both {@code foo} and {@code FOO} then:
  - {@code cd.getType("foo")}, {@code cd.getType("fOO")} and {@code cd.getType("FOO")}will all match column {@code foo}.
  - {@code cd.getType("\"FOO\"")} will match column {@code FOO}
Note that the preceding rules mean that if a {@code ColumnDefinitions} objectcontains multiple occurrences of the exact same name (be it the same column multiple times or columns from different tables with the same name), you will have to use selection by index to disambiguate.

    }


    public <T> T mapRowToEntityWithPrimaryKey(EntityMeta meta, Row row, Map<String, PropertyMeta> propertiesMap, EntityState entityState) {
        log.debug("Map CQL row to entity of class {}", meta.getClassName());
        T entity = null;
        ColumnDefinitions columnDefinitions = row.getColumnDefinitions();
        if (columnDefinitions != null) {
            entity = meta.forOperations().instanciate();
            for (Definition column : columnDefinitions) {
                String columnName = column.getName();
                PropertyMeta pm = propertiesMap.get(columnName);

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        while (rowIter.hasNext())
        {
            Object entity = null;
            Row row = rowIter.next();
            ColumnDefinitions columnDefs = row.getColumnDefinitions();
            Iterator<Definition> columnDefIter = columnDefs.iterator();


            entity = iteratorColumns(metadata, metaModel, entityType, relationalValues, entity, row, columnDefIter);


            if (entity != null && entity.getClass().isAssignableFrom(metadata.getEntityClazz()))
            {

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            ResultSet rSet = this.execute(builder.toString(), null);


            Iterator<Row> rowIter = rSet.iterator();


            Row row = rowIter.next();
            ColumnDefinitions columnDefs = row.getColumnDefinitions();
            Iterator<Definition> columnDefIter = columnDefs.iterator();


            entity = iteratorColumns(metadata, metaModel, metaModel.entity(metadata.getEntityClazz()),
                    new HashMap<String, Object>(), entity, row, columnDefIter);
        }
    }

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   * This constructor is meant to be called when we have a table with standard columns i.e no composites, just plain columns
   * @param row
   */
  public CqlColumnListImpl(Row row, ColumnFamily<?,?> cf) {
    
    ColumnDefinitions cfDefinitions = row.getColumnDefinitions();
    
    int index = 1; // skip the key column
    while (index < cfDefinitions.size()) {
      String columnName = cfDefinitions.getName(index); 
      CqlColumnImpl<C> cqlCol = new CqlColumnImpl<C>((C) columnName, row, index);
      columnList.add(cqlCol);
      map.put((C) columnName, cqlCol);
      index+=3;  // skip past the ttl and the timestamp
    }

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