nativePageSql
This commit is contained in:
redkale
@@ -80,7 +80,7 @@ public abstract class AbstractDataSqlSource extends AbstractDataSource
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((CompletableFuture<Sheet>) querySheetDBAsync(i, false, false, false, null, null, (FilterNode) null))
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.thenApply(e -> e == null ? new ArrayList() : e.list(true));
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protected final IntFunction<String> signFunc = index -> prepareParamSign(index);
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protected final IntFunction<String> signFunc = this::prepareParamSign;
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// Flipper.sort转换成以ORDER BY开头SQL的缓存
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protected final Map<String, String> sortOrderbySqls = new ConcurrentHashMap<>();
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@@ -161,76 +161,73 @@ public abstract class AbstractDataSqlSource extends AbstractDataSource
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protected <T> PageCountSql createPageCountSql(
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EntityInfo<T> info,
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final boolean readCache,
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boolean readCache,
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boolean needTotal,
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final boolean distinct,
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boolean distinct,
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SelectColumn selects,
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String[] tables,
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Flipper flipper,
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FilterNode node) {
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final Map<Class, String> joinTabalis = node == null ? null : node.getJoinTabalis();
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final CharSequence join =
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node == null ? null : node.createSQLJoin(this, false, joinTabalis, new HashSet<>(), info);
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final CharSequence where = node == null ? null : node.createSQLExpress(this, info, joinTabalis);
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final String joinAndWhere =
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(join == null ? "" : join) + ((where == null || where.length() == 0) ? "" : (" WHERE " + where));
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CharSequence join = node == null ? null : node.createSQLJoin(this, false, joinTabalis, new HashSet<>(), info);
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final String joinAndWhere = (join == null ? "" : join) + (Utility.isEmpty(where) ? "" : (" WHERE " + where));
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String pageSql = null;
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String countSql = null;
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boolean containsLimit = false;
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{ // 组装pageSql、countSql
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String listSubSql;
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StringBuilder union = new StringBuilder();
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// 组装pageSql、countSql
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String listSubSql;
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StringBuilder union = new StringBuilder();
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if (tables.length == 1) {
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listSubSql = "SELECT " + (distinct ? "DISTINCT " : "") + info.getQueryColumns("a", selects) + " FROM "
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+ tables[0] + " a" + joinAndWhere;
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} else {
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for (String table : tables) {
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if (union.length() > 0) {
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union.append(" UNION ALL ");
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}
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union.append("SELECT ")
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.append(info.getQueryColumns("a", selects))
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.append(" FROM ")
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.append(table)
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.append(" a")
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.append(joinAndWhere);
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}
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listSubSql = "SELECT " + (distinct ? "DISTINCT " : "") + info.getQueryColumns("a", selects) + " FROM ("
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+ (union) + ") a";
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}
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// pageSql
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pageSql = listSubSql + createOrderbySql(info, flipper);
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if (Flipper.validLimit(flipper)) {
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if ("oracle".equals(dbtype)) {
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int start = flipper.getOffset();
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int end = flipper.getOffset() + flipper.getLimit();
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pageSql = "SELECT * FROM (SELECT T_.*, ROWNUM RN_ FROM (" + pageSql + ") T_) WHERE RN_ BETWEEN " + start
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+ " AND " + end;
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containsLimit = true;
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} else if ("sqlserver".equals(dbtype)) {
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int offset = flipper.getOffset();
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int limit = flipper.getLimit();
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pageSql += " OFFSET " + offset + " ROWS FETCH NEXT " + limit + " ROWS ONLY";
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containsLimit = true;
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} else { // 按mysql、postgresql、mariadb、h2处理
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pageSql += " LIMIT " + flipper.getLimit() + " OFFSET " + flipper.getOffset();
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containsLimit = true;
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}
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}
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// countSql
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if (needTotal) {
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String countSubSql;
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if (tables.length == 1) {
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listSubSql = "SELECT " + (distinct ? "DISTINCT " : "") + info.getQueryColumns("a", selects) + " FROM "
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+ tables[0] + " a" + joinAndWhere;
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countSubSql = "SELECT "
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+ (distinct ? "DISTINCT COUNT(" + info.getQueryColumns("a", selects) + ")" : "COUNT(*)")
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+ " FROM " + tables[0] + " a" + joinAndWhere;
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} else {
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for (String table : tables) {
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if (union.length() > 0) {
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union.append(" UNION ALL ");
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}
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union.append("SELECT ")
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.append(info.getQueryColumns("a", selects))
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.append(" FROM ")
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.append(table)
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.append(" a")
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.append(joinAndWhere);
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}
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listSubSql = "SELECT " + (distinct ? "DISTINCT " : "") + info.getQueryColumns("a", selects) + " FROM ("
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+ (union) + ") a";
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}
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// pageSql
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pageSql = listSubSql + createOrderbySql(info, flipper);
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if (Flipper.validLimit(flipper)) {
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if ("oracle".equals(dbtype)) {
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int start = flipper.getOffset();
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int end = flipper.getOffset() + flipper.getLimit();
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pageSql = "SELECT * FROM (SELECT T_.*, ROWNUM RN_ FROM (" + pageSql + ") T_) WHERE RN_ BETWEEN "
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+ start + " AND " + end;
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containsLimit = true;
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} else if ("sqlserver".equals(dbtype)) {
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int offset = flipper.getOffset();
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int limit = flipper.getLimit();
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pageSql += " OFFSET " + offset + " ROWS FETCH NEXT " + limit + " ROWS ONLY";
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containsLimit = true;
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} else { // 按mysql、postgresql、mariadb、h2处理
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pageSql += " LIMIT " + flipper.getLimit() + " OFFSET " + flipper.getOffset();
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containsLimit = true;
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}
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}
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// countSql
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if (needTotal) {
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String countSubSql;
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if (tables.length == 1) {
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countSubSql = "SELECT "
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+ (distinct ? "DISTINCT COUNT(" + info.getQueryColumns("a", selects) + ")" : "COUNT(*)")
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+ " FROM " + tables[0] + " a" + joinAndWhere;
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} else {
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countSubSql = "SELECT "
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+ (distinct ? "DISTINCT COUNT(" + info.getQueryColumns("a", selects) + ")" : "COUNT(*)")
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+ " FROM (" + (union) + ") a";
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}
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countSql = countSubSql;
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countSubSql = "SELECT "
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+ (distinct ? "DISTINCT COUNT(" + info.getQueryColumns("a", selects) + ")" : "COUNT(*)")
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+ " FROM (" + (union) + ") a";
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}
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countSql = countSubSql;
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}
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if (readCache && info.isLoggable(logger, Level.FINEST, pageSql)) {
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String prefix = needTotal ? " querySheet" : " queryList";
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@@ -240,16 +237,13 @@ public abstract class AbstractDataSqlSource extends AbstractDataSource
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logger.finest(
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info.getType().getSimpleName() + prefix + (needTotal ? " page-sql=" : " list-sql=") + pageSql);
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}
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PageCountSql rs = new PageCountSql();
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rs.pageSql = pageSql;
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rs.countSql = countSql;
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rs.pageContainsLimit = containsLimit;
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return rs;
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return new PageCountSql(pageSql, countSql, containsLimit);
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}
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/**
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* 根据Flipper获取ORDER BY的SQL语句，不存在Flipper或sort字段返回空字符串
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*
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* @param info EntityInfo
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* @param flipper 翻页对象
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* @return String
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*/
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@@ -3990,12 +3984,18 @@ public abstract class AbstractDataSqlSource extends AbstractDataSource
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protected static class PageCountSql {
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public String pageSql;
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public final String pageSql;
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@Nullable
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public String countSql;
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public final String countSql;
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public boolean pageContainsLimit;
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public final boolean pageContainsLimit;
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public PageCountSql(String pageSql, String countSql, boolean pageContainsLimit) {
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this.pageSql = pageSql;
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this.countSql = countSql;
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this.pageContainsLimit = pageContainsLimit;
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}
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@Override
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public String toString() {
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