Java Utililty Methods Map Join

List of utility methods to do Map Join

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Description

The list of methods to do Map Join are organized into topic(s).

Method

voidjoin(final long timeout, final Map throwableMap, final Thread... threads)
Wait on each thread, individually, for timeout milliseconds. 
for (final Thread t : threads) {
    Throwable error = null;
    try {
        t.join(timeout);
        if (t.isAlive()) {
            error = new AssertionError("Thread did not complete in timeout: " + timeout);
    } catch (final InterruptedException e) {
...
Mapjoin(final Map map1, final Map map2, final Map... maps)
join 
return new HashMap<K, V>() {
        putAll(map1);
        putAll(map2);
        for (Map<? extends K, ? extends V> map : maps) {
            putAll(map);
};
Map[]join(final Map add, final Map... imports)
join 
final Map<?, ?>[] result = new Map<?, ?>[imports == null ? 1 : imports.length + 1];
result[0] = add;
for (int i = 0; imports != null && i < imports.length; i++)
    result[i + 1] = imports[i];
return result;
Mapjoin(List> list)
join 
if (list == null) {
    return null;
Map<K, V> result = new HashMap<K, V>();
for (int i = 0; i < list.size(); i++) {
    Map<K, V> map = list.get(i);
    if (map != null) {
        result.putAll(map);
...
StringJoin(Map map, String entryGlue, String elementGlue)
Joins a map together (using StringBuilder's { 
return Join(map, entryGlue, elementGlue, null, null, null);
voidjoin(Map dst, Map src)
join 
Map<Object, Object> dstMap = (Map<Object, Object>) dst;
Map<Object, Object> srcMap = (Map<Object, Object>) src;
Set<Object> srcKeySet = srcMap.keySet();
for (Object srcKey : srcKeySet) {
    Object srcValue = src.get(srcKey);
    Object dstValue = dst.get(srcKey);
    if (srcValue != null) {
        if (dstValue != null) {
...
Listjoin(Map map, String separator)
join 
if (map == null) {
    return null;
List<String> list = new ArrayList<String>();
if (map == null || map.size() == 0) {
    return list;
for (Map.Entry<String, String> entry : map.entrySet()) {
...
Map>joinAll(Map> map, String separator)
join All 
if (map == null) {
    return null;
Map<String, List<String>> result = new HashMap<String, List<String>>();
for (Map.Entry<String, Map<String, String>> entry : map.entrySet()) {
    result.put(entry.getKey(), join(entry.getValue(), separator));
return result;
...
StringjoinArgs(Map map, String sep, String split)
join Args 
StringBuilder sb = new StringBuilder();
for (String key : map.keySet()) {
    sb.append(key);
    sb.append(split);
    sb.append(map.get(key));
    sb.append(sep);
if (sb.length() > 0) {
...
StringjoinLookup(Iterable elements, String separator, Map lookup)
join Lookup 
if (elements == null)
    return "";
StringBuilder buf = new StringBuilder();
if (separator == null)
    separator = " ";
for (Object o : elements) {
    if (buf.length() > 0)
        buf.append(separator);
...