Examples of freemarker.template.SimpleSequence

freemarker.template.SimpleSequence

A convenient implementation of a list. This object implements {@link TemplateSequenceModel}, using an underlying java.util.List implementation.

A SimpleSequence can act as a cache for a TemplateCollectionModel, e.g. one that gets data from a database. When passed a TemplateCollectionModel as an argument to its constructor, the SimpleSequence immediately copies all the elements and discards the TemplateCollectionModel.

This class is thread-safe if you don't call the add method after you have made the object available for multiple threads.
Note:
As of 2.0, this class is unsynchronized by default. To obtain a synchronized wrapper, call the {@link #synchronizedWrapper} method.
@version $Id: SimpleSequence.java,v 1.53 2005/06/21 18:17:54 ddekany Exp $ @see SimpleHash @see SimpleScalar

            final SimpleSequence groupsSeq;
            
            MatchWithGroups(String input, Matcher matcher) {
                matchedInputPart = input.substring(matcher.start(), matcher.end());
                final int grpCount = matcher.groupCount() + 1;
                groupsSeq = new SimpleSequence(grpCount);
                for (int i = 0; i < grpCount; i++) {
                    groupsSeq.add(matcher.group(i));
                }
            }

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                    }
                    map.put(key, value);
                    keyList.add(key);
                    valueList.add(value);
                }
                keyCollection = new CollectionAndSequence(new SimpleSequence(keyList));
                valueCollection = new CollectionAndSequence(new SimpleSequence(valueList));
            }
        }

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        }


        public TemplateCollectionModel keys() {
            if (keyCollection == null) {
                // This can only happen when IcI >= 2.3.21, an the map is a LinkedHashMap.
                keyCollection = new CollectionAndSequence(new SimpleSequence(map.keySet()));
            }
            return keyCollection;
        }

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        }


        public TemplateCollectionModel values() {
            if (valueCollection == null) {
                // This can only happen when IcI >= 2.3.21, an the map is a LinkedHashMap.
                valueCollection = new CollectionAndSequence(new SimpleSequence(map.values()));
            }
            return valueCollection;
        }

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        }
    }


    static class word_listBI extends BuiltInForString {
        TemplateModel calculateResult(String s, Environment env) {
            SimpleSequence result = new SimpleSequence();
            StringTokenizer st = new StringTokenizer(s);
            while (st.hasMoreTokens()) {
               result.add(st.nextToken());
            }
            return result;
        }

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        private void initKeys()
        throws TemplateModelException
        {
            if (keys == null) {
                HashSet keySet = new HashSet();
                SimpleSequence keySeq = new SimpleSequence(32);
                addKeys(keySet, keySeq, (TemplateHashModelEx)this.left);
                addKeys(keySet, keySeq, (TemplateHashModelEx)this.right);
                size = keySet.size();
                keys = new CollectionAndSequence(keySeq);
            }

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        private void initValues()
        throws TemplateModelException
        {
            if (values == null) {
                SimpleSequence seq = new SimpleSequence(size());
                // Note: size() invokes initKeys() if needed.
            
                int ln = keys.size();
                for (int i  = 0; i < ln; i++) {
                    seq.add(get(((TemplateScalarModel)keys.get(i)).getAsString()));
                }
                values = new CollectionAndSequence(seq);
            }
        }

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        else if (namespaces instanceof ListLiteral) {
            nss = ((ListLiteral) namespaces).evaluateStringsToNamespaces(env);
        }
        if (nss != null) {
            if (nss instanceof TemplateHashModel) {
                SimpleSequence ss = new SimpleSequence(1);
                ss.add(nss);
                nss = ss;
            }
            else if (!(nss instanceof TemplateSequenceModel)) {
                if (namespaces != null) {
                    throw new NonSequenceException(namespaces, nss, env);

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        return "element";
    }
    
    public TemplateSequenceModel getChildNodes() {
        if (nestedElements != null) {
            return new SimpleSequence(nestedElements);
        }
        SimpleSequence result = new SimpleSequence();
        if (nestedBlock != null) {
            result.add(nestedBlock);
        } 
        return result;
    }

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        this.items = items;
        items.trimToSize();
    }


    TemplateModel _eval(Environment env) throws TemplateException {
        SimpleSequence list = new SimpleSequence(items.size());
        for (Iterator it = items.iterator(); it.hasNext();) {
            Expression exp = (Expression) it.next();
            TemplateModel tm = exp.eval(env);
            if (env == null || !env.isClassicCompatible()) {            
                exp.assertNonNull(tm, env);
            }
            list.add(tm);
        }
        return list;
    }

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