Example usage for com.google.common.collect Iterators concat

Introduction

In this page you can find the example usage for com.google.common.collect Iterators concat.

Prototype

public static <T> Iterator<T> concat(final Iterator<? extends Iterator<? extends T>> inputs)

Source Link

Document

Combines multiple iterators into a single iterator.

Usage

From source file:org.roda.core.common.iterables.CloseableIterables.java

public static <T> CloseableIterable<T> concat(List<CloseableIterable<T>> list) {
    checkNotNull(list);//from  www .j  ava  2  s . com
    return new CloseableIterable<T>() {

        @Override
        public void close() throws IOException {
            closeAll(list);
        }

        @Override
        public Iterator<T> iterator() {
            return Iterators.concat(iterators(list));
        }
    };
}

From source file:sg.atom.utils._beta.functional.FunctionalIterator.java

public static <T> FunctionalIterator<T> fromConcatenation(Iterator<T>... toConcat) {
    return new FunctionalIterator<T>(Iterators.concat(toConcat));
}

From source file:io.druid.java.util.common.CloseableIterators.java

public static <T> CloseableIterator<T> concat(List<? extends CloseableIterator<? extends T>> iterators) {
    final Closer closer = Closer.create();
    iterators.forEach(closer::register);

    final Iterator<T> innerIterator = Iterators.concat(iterators.iterator());
    return wrap(innerIterator, closer);
}

From source file:org.jclouds.googlecloud.internal.ListPages.java

public static <T> Iterable<T> concat(final Iterator<ListPage<T>> input) {
    return new Iterable<T>() {
        @Override/*  ww  w .j  a  v a2s.c o m*/
        public Iterator<T> iterator() {
            return Iterators.concat(new AbstractIterator<Iterator<T>>() {
                @Override
                protected Iterator<T> computeNext() {
                    return input.hasNext() ? input.next().iterator() : endOfData();
                }
            });
        }
    };
}

From source file:sg.atom.utils._beta.functional.FunctionalIterator.java

public static <T> FunctionalIterator<T> fromConcatenation(Iterator<Iterator<T>> toConcat) {
    return new FunctionalIterator<T>(Iterators.concat(toConcat));
}

From source file:io.druid.java.util.common.guava.FunctionalIterator.java

public static <T> FunctionalIterator<T> fromConcatenation(Iterator<T>... toConcat) {
    return new FunctionalIterator<>(Iterators.concat(toConcat));
}

From source file:io.druid.java.util.common.guava.FunctionalIterator.java

public static <T> FunctionalIterator<T> fromConcatenation(Iterator<Iterator<T>> toConcat) {
    return new FunctionalIterator<>(Iterators.concat(toConcat));
}

From source file:ninja.leaping.permissionsex.util.glob.OrNode.java

@Override
public Iterator<String> iterator() {
    return Iterators.concat(Iterators.transform(children.iterator(), GlobNode::iterator));
}

From source file:io.druid.query.groupby.epinephelinae.Groupers.java

public static <KeyType extends Comparable<KeyType>> Iterator<Grouper.Entry<KeyType>> mergeIterators(
        final Iterable<Iterator<Grouper.Entry<KeyType>>> iterators, final boolean sorted) {
    if (sorted) {
        return Iterators.mergeSorted(iterators, ENTRY_COMPARATOR);
    } else {/*from ww w  .ja  v  a  2  s. com*/
        return Iterators.concat(iterators.iterator());
    }
}

From source file:org.opennms.newts.persistence.cassandra.ConcurrentResultWrapper.java

public ConcurrentResultWrapper(Collection<Future<ResultSet>> futures) {
    m_rowIter = Iterators.concat(getIterators(futures));
}