@@ -1452,6 +1452,270 @@ public static <T> Observable<T> concatDelayError(Iterable<? extends Observable<?
14521452 return concatDelayError(from(sources));
14531453 }
14541454
1455+ /**
1456+ * Returns an Observable that emits the items emitted by two Observables, one after the other, without
1457+ * interleaving them, and delays any errors till all Observables terminate.
1458+ *
1459+ * <dl>
1460+ * <dt><b>Backpressure:</b></dt>
1461+ * <dd>The operator honors backpressure from downstream. The {@code Observable}
1462+ * sources are expected to honor backpressure as well.
1463+ * If any of the source {@code Observable}s violate this, it <em>may</em> throw an
1464+ * {@code IllegalStateException} when the source {@code Observable} completes.</dd>
1465+ * <dt><b>Scheduler:</b></dt>
1466+ * <dd>{@code concatDelayError} does not operate by default on a particular {@link Scheduler}.</dd>
1467+ * </dl>
1468+ *
1469+ * @param <T> the common element base type
1470+ * @param t1
1471+ * an Observable to be concatenated
1472+ * @param t2
1473+ * an Observable to be concatenated
1474+ * @return an Observable with the concatenating behavior
1475+ */
1476+ @Experimental
1477+ public static <T> Observable<T> concatDelayError(Observable<? extends T> t1, Observable<? extends T> t2) {
1478+ return concatDelayError(just(t1, t2));
1479+ }
1480+
1481+ /**
1482+ * Returns an Observable that emits the items emitted by three Observables, one after the other, without
1483+ * interleaving them, and delays any errors till all Observables terminate.
1484+ *
1485+ * <dl>
1486+ * <dt><b>Backpressure:</b></dt>
1487+ * <dd>The operator honors backpressure from downstream. The {@code Observable}
1488+ * sources are expected to honor backpressure as well.
1489+ * If any of the source {@code Observable}s violate this, it <em>may</em> throw an
1490+ * {@code IllegalStateException} when the source {@code Observable} completes.</dd>
1491+ * <dt><b>Scheduler:</b></dt>
1492+ * <dd>{@code concatDelayError} does not operate by default on a particular {@link Scheduler}.</dd>
1493+ * </dl>
1494+ *
1495+ * @param <T> the common element base type
1496+ * @param t1
1497+ * an Observable to be concatenated
1498+ * @param t2
1499+ * an Observable to be concatenated
1500+ * @param t3
1501+ * an Observable to be concatenated
1502+ * @return an Observable with the concatenating behavior
1503+ */
1504+ @Experimental
1505+ public static <T> Observable<T> concatDelayError(Observable<? extends T> t1, Observable<? extends T> t2,Observable<? extends T> t3 ) {
1506+ return concatDelayError(just(t1, t2, t3));
1507+ }
1508+
1509+ /**
1510+ * Returns an Observable that emits the items emitted by four Observables, one after the other, without
1511+ * interleaving them, and delays any errors till all Observables terminate.
1512+ *
1513+ * <dl>
1514+ * <dt><b>Backpressure:</b></dt>
1515+ * <dd>The operator honors backpressure from downstream. The {@code Observable}
1516+ * sources are expected to honor backpressure as well.
1517+ * If any of the source {@code Observable}s violate this, it <em>may</em> throw an
1518+ * {@code IllegalStateException} when the source {@code Observable} completes.</dd>
1519+ * <dt><b>Scheduler:</b></dt>
1520+ * <dd>{@code concatDelayError} does not operate by default on a particular {@link Scheduler}.</dd>
1521+ * </dl>
1522+ *
1523+ * @param <T> the common element base type
1524+ * @param t1
1525+ * an Observable to be concatenated
1526+ * @param t2
1527+ * an Observable to be concatenated
1528+ * @param t3
1529+ * an Observable to be concatenated
1530+ * @param t4
1531+ * an Observable to be concatenated
1532+ * @return an Observable with the concatenating behavior
1533+ */
1534+ @Experimental
1535+ public static <T> Observable<T> concatDelayError(Observable<? extends T> t1, Observable<? extends T> t2, Observable<? extends T> t3, Observable<? extends T> t4) {
1536+ return concatDelayError(just(t1, t2, t3, t4));
1537+ }
1538+
1539+ /**
1540+ * Returns an Observable that emits the items emitted by five Observables, one after the other, without
1541+ * interleaving them, and delays any errors till all Observables terminate.
1542+ *
1543+ * <dl>
1544+ * <dt><b>Backpressure:</b></dt>
1545+ * <dd>The operator honors backpressure from downstream. The {@code Observable}
1546+ * sources are expected to honor backpressure as well.
1547+ * If any of the source {@code Observable}s violate this, it <em>may</em> throw an
1548+ * {@code IllegalStateException} when the source {@code Observable} completes.</dd>
1549+ * <dt><b>Scheduler:</b></dt>
1550+ * <dd>{@code concatDelayError} does not operate by default on a particular {@link Scheduler}.</dd>
1551+ * </dl>
1552+ *
1553+ * @param <T> the common element base type
1554+ * @param t1
1555+ * an Observable to be concatenated
1556+ * @param t2
1557+ * an Observable to be concatenated
1558+ * @param t3
1559+ * an Observable to be concatenated
1560+ * @param t4
1561+ * an Observable to be concatenated
1562+ * @param t5
1563+ * an Observable to be concatenated
1564+ * @return an Observable with the concatenating behavior
1565+ */
1566+ @Experimental
1567+ public static <T> Observable<T> concatDelayError(Observable<? extends T> t1, Observable<? extends T> t2, Observable<? extends T> t3, Observable<? extends T> t4, Observable<? extends T> t5) {
1568+ return concatDelayError(just(t1, t2, t3, t4, t5));
1569+ }
1570+
1571+ /**
1572+ * Returns an Observable that emits the items emitted by six Observables, one after the other, without
1573+ * interleaving them, and delays any errors till all Observables terminate.
1574+ *
1575+ * <dl>
1576+ * <dt><b>Backpressure:</b></dt>
1577+ * <dd>The operator honors backpressure from downstream. The {@code Observable}
1578+ * sources are expected to honor backpressure as well.
1579+ * If any of the source {@code Observable}s violate this, it <em>may</em> throw an
1580+ * {@code IllegalStateException} when the source {@code Observable} completes.</dd>
1581+ * <dt><b>Scheduler:</b></dt>
1582+ * <dd>{@code concatDelayError} does not operate by default on a particular {@link Scheduler}.</dd>
1583+ * </dl>
1584+ *
1585+ * @param <T> the common element base type
1586+ * @param t1
1587+ * an Observable to be concatenated
1588+ * @param t2
1589+ * an Observable to be concatenated
1590+ * @param t3
1591+ * an Observable to be concatenated
1592+ * @param t4
1593+ * an Observable to be concatenated
1594+ * @param t5
1595+ * an Observable to be concatenated
1596+ * @param t6
1597+ * an Observable to be concatenated
1598+ * @return an Observable with the concatenating behavior
1599+ */
1600+ @Experimental
1601+ public static <T> Observable<T> concatDelayError(Observable<? extends T> t1, Observable<? extends T> t2, Observable<? extends T> t3, Observable<? extends T> t4, Observable<? extends T> t5, Observable<? extends T> t6) {
1602+ return concatDelayError(just(t1, t2, t3, t4, t5, t6));
1603+ }
1604+
1605+ /**
1606+ * Returns an Observable that emits the items emitted by seven Observables, one after the other, without
1607+ * interleaving them, and delays any errors till all Observables terminate.
1608+ *
1609+ * <dl>
1610+ * <dt><b>Backpressure:</b></dt>
1611+ * <dd>The operator honors backpressure from downstream. The {@code Observable}
1612+ * sources are expected to honor backpressure as well.
1613+ * If any of the source {@code Observable}s violate this, it <em>may</em> throw an
1614+ * {@code IllegalStateException} when the source {@code Observable} completes.</dd>
1615+ * <dt><b>Scheduler:</b></dt>
1616+ * <dd>{@code concatDelayError} does not operate by default on a particular {@link Scheduler}.</dd>
1617+ * </dl>
1618+ *
1619+ * @param <T> the common element base type
1620+ * @param t1
1621+ * an Observable to be concatenated
1622+ * @param t2
1623+ * an Observable to be concatenated
1624+ * @param t3
1625+ * an Observable to be concatenated
1626+ * @param t4
1627+ * an Observable to be concatenated
1628+ * @param t5
1629+ * an Observable to be concatenated
1630+ * @param t6
1631+ * an Observable to be concatenated
1632+ * @param t7
1633+ * an Observable to be concatenated
1634+ * @return an Observable with the concatenating behavior
1635+ */
1636+ @Experimental
1637+ public static <T> Observable<T> concatDelayError(Observable<? extends T> t1, Observable<? extends T> t2, Observable<? extends T> t3, Observable<? extends T> t4, Observable<? extends T> t5, Observable<? extends T> t6, Observable<? extends T> t7) {
1638+ return concatDelayError(just(t1, t2, t3, t4, t5, t6, t7));
1639+ }
1640+
1641+ /**
1642+ * Returns an Observable that emits the items emitted by eight Observables, one after the other, without
1643+ * interleaving them, and delays any errors till all Observables terminate.
1644+ *
1645+ * <dl>
1646+ * <dt><b>Backpressure:</b></dt>
1647+ * <dd>The operator honors backpressure from downstream. The {@code Observable}
1648+ * sources are expected to honor backpressure as well.
1649+ * If any of the source {@code Observable}s violate this, it <em>may</em> throw an
1650+ * {@code IllegalStateException} when the source {@code Observable} completes.</dd>
1651+ * <dt><b>Scheduler:</b></dt>
1652+ * <dd>{@code concatDelayError} does not operate by default on a particular {@link Scheduler}.</dd>
1653+ * </dl>
1654+ *
1655+ * @param <T> the common element base type
1656+ * @param t1
1657+ * an Observable to be concatenated
1658+ * @param t2
1659+ * an Observable to be concatenated
1660+ * @param t3
1661+ * an Observable to be concatenated
1662+ * @param t4
1663+ * an Observable to be concatenated
1664+ * @param t5
1665+ * an Observable to be concatenated
1666+ * @param t6
1667+ * an Observable to be concatenated
1668+ * @param t7
1669+ * an Observable to be concatenated
1670+ * @param t8
1671+ * an Observable to be concatenated
1672+ * @return an Observable with the concatenating behavior
1673+ */
1674+ @Experimental
1675+ public static <T> Observable<T> concatDelayError(Observable<? extends T> t1, Observable<? extends T> t2, Observable<? extends T> t3, Observable<? extends T> t4, Observable<? extends T> t5, Observable<? extends T> t6, Observable<? extends T> t7, Observable<? extends T> t8) {
1676+ return concatDelayError(just(t1, t2, t3, t4, t5, t6, t7, t8));
1677+ }
1678+
1679+ /**
1680+ * Returns an Observable that emits the items emitted by nine Observables, one after the other, without
1681+ * interleaving them, and delays any errors till all Observables terminate.
1682+ *
1683+ * <dl>
1684+ * <dt><b>Backpressure:</b></dt>
1685+ * <dd>The operator honors backpressure from downstream. The {@code Observable}
1686+ * sources are expected to honor backpressure as well.
1687+ * If any of the source {@code Observable}s violate this, it <em>may</em> throw an
1688+ * {@code IllegalStateException} when the source {@code Observable} completes.</dd>
1689+ * <dt><b>Scheduler:</b></dt>
1690+ * <dd>{@code concatDelayError} does not operate by default on a particular {@link Scheduler}.</dd>
1691+ * </dl>
1692+ *
1693+ * @param <T> the common element base type
1694+ * @param t1
1695+ * an Observable to be concatenated
1696+ * @param t2
1697+ * an Observable to be concatenated
1698+ * @param t3
1699+ * an Observable to be concatenated
1700+ * @param t4
1701+ * an Observable to be concatenated
1702+ * @param t5
1703+ * an Observable to be concatenated
1704+ * @param t6
1705+ * an Observable to be concatenated
1706+ * @param t7
1707+ * an Observable to be concatenated
1708+ * @param t8
1709+ * an Observable to be concatenated
1710+ * @param t9
1711+ * an Observable to be concatenated
1712+ * @return an Observable with the concatenating behavior
1713+ */
1714+ @Experimental
1715+ public static <T> Observable<T> concatDelayError(Observable<? extends T> t1, Observable<? extends T> t2, Observable<? extends T> t3, Observable<? extends T> t4, Observable<? extends T> t5, Observable<? extends T> t6, Observable<? extends T> t7, Observable<? extends T> t8, Observable<? extends T> t9) {
1716+ return concatDelayError(just(t1, t2, t3, t4, t5, t6, t7, t8, t9));
1717+ }
1718+
14551719 /**
14561720 * Returns an Observable that calls an Observable factory to create an Observable for each new Observer
14571721 * that subscribes. That is, for each subscriber, the actual Observable that subscriber observes is
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