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Diffstat (limited to 'base/src/main/java/bjc/utils/funcutils/QueueBackedIterator.java')
-rw-r--r--base/src/main/java/bjc/utils/funcutils/QueueBackedIterator.java36
1 files changed, 36 insertions, 0 deletions
diff --git a/base/src/main/java/bjc/utils/funcutils/QueueBackedIterator.java b/base/src/main/java/bjc/utils/funcutils/QueueBackedIterator.java
new file mode 100644
index 0000000..8b9f401
--- /dev/null
+++ b/base/src/main/java/bjc/utils/funcutils/QueueBackedIterator.java
@@ -0,0 +1,36 @@
+package bjc.utils.funcutils;
+
+import java.util.*;
+
+/**
+ * An iterator backed by a queue.
+ *
+ * @author Ben Culkin
+ *
+ * @param <ElementType> The type of element
+ */
+public class QueueBackedIterator<ElementType>
+ implements Iterator<ElementType>
+{
+ private final Queue<ElementType> backer;
+
+ /**
+ * Create a new queue-backed iterator.
+ *
+ * @param backer The queue which backs this iterator.
+ */
+ public QueueBackedIterator(Queue<ElementType> backer)
+ {
+ this.backer = backer;
+ }
+
+ @Override
+ public boolean hasNext() {
+ return !backer.isEmpty();
+ }
+
+ @Override
+ public ElementType next() {
+ return backer.remove();
+ }
+} \ No newline at end of file