@Override
        public void jsonColumn(Column column) {
            if (record.isNull(column)) {
                visit(column, null);
            } else {
                if (this.useJsonValue) {
                    visit(column, record.getJsonValue(column));
                } else {
                    visit(column, record.getJson(column));
                }
            }
        }
A {@link ColumnVisitor} implementation to map everything to {@link java.lang.Object}.

@deprecated Implement your own {@link ColumnVisitor}.
embulk-core/src/main/java/org/embulk/spi/util/Pages.java