diff -r 7e08730da258 -r 4a1864c3e867 java/sql-dk/src/info/globalcode/sql/dk/formatting/TabularPrefetchingFormatter.java
--- a/java/sql-dk/src/info/globalcode/sql/dk/formatting/TabularPrefetchingFormatter.java Mon Mar 04 17:06:42 2019 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,119 +0,0 @@
-/**
- * SQL-DK
- * Copyright © 2013 František Kučera (frantovo.cz)
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see .
- */
-package info.globalcode.sql.dk.formatting;
-
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- *
- * Prefetches whole result set and computes column widths. Whole table is flushed at once in
- * {@linkplain #writeEndResultSet()}.
- *
- *
- *
- * Long values will not overflow the cells, but whole result set must be loaded into the memory.
- *
- *
- * @author Ing. František Kučera (frantovo.cz)
- */
-public class TabularPrefetchingFormatter extends TabularFormatter {
-
- public static final String NAME = "tabular-prefetching"; // bash-completion:formatter
- private ColumnsHeader currentHeader;
- private List currentResultSet;
- private Object[] currentRow;
- private int currentColumnsCount;
- private boolean prefetchDone = false;
-
- public TabularPrefetchingFormatter(FormatterContext formatterContext) {
- super(formatterContext);
- }
-
- @Override
- protected int getCurrentColumnsCount() {
- if (prefetchDone) {
- return super.getCurrentColumnsCount();
- } else {
- return currentColumnsCount;
- }
- }
-
- @Override
- public void writeStartResultSet(ColumnsHeader header) {
- currentResultSet = new ArrayList<>();
- currentHeader = header;
- initColumnWidths(header.getColumnCount());
- }
-
- @Override
- public void writeStartRow() {
- currentRow = new Object[currentHeader.getColumnCount()];
- currentResultSet.add(currentRow);
- currentColumnsCount = 0;
- }
-
- @Override
- public void writeColumnValue(Object value) {
- currentRow[currentColumnsCount] = value;
- currentColumnsCount++;
- String textRepresentation = toString(value);
- /** TODO: count only printable characters (currently not an issue) */
- updateColumnWidth(currentColumnsCount, textRepresentation.length());
- }
-
- @Override
- public void writeEndRow() {
- // do nothing
- }
-
- @Override
- public void writeEndResultSet() {
- prefetchDone = true;
-
- postprocessPrefetchedResultSet(currentHeader, currentResultSet);
-
- super.writeStartResultSet(currentHeader);
-
- for (Object[] row : currentResultSet) {
- super.writeStartRow();
- for (Object cell : row) {
- super.writeColumnValue(cell);
- }
- super.writeEndRow();
- }
-
- currentColumnsCount = 0;
- currentHeader = null;
- currentRow = null;
- currentResultSet = null;
- super.writeEndResultSet();
- prefetchDone = false;
- }
-
- /**
- * Optional post-processing – override in sub-classes if needed.
- * Don't forget to {@linkplain #updateColumnWidth(int, int)}
- *
- * @param currentHeader
- * @param currentResultSet
- */
- protected void postprocessPrefetchedResultSet(ColumnsHeader currentHeader, List currentResultSet) {
- }
-
-}