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Diffstat (limited to 'base/src/main/java/bjc/utils/data/TransformIterator.java')
-rw-r--r--base/src/main/java/bjc/utils/data/TransformIterator.java46
1 files changed, 46 insertions, 0 deletions
diff --git a/base/src/main/java/bjc/utils/data/TransformIterator.java b/base/src/main/java/bjc/utils/data/TransformIterator.java
new file mode 100644
index 0000000..50f28b1
--- /dev/null
+++ b/base/src/main/java/bjc/utils/data/TransformIterator.java
@@ -0,0 +1,46 @@
+package bjc.utils.data;
+
+import java.util.Iterator;
+import java.util.function.Function;
+
+/**
+ * An iterator that transforms values from one type to another.
+ *
+ * @author EVE
+ *
+ * @param <S>
+ * The source iterator type.
+ *
+ * @param <D>
+ * The destination iterator type.
+ */
+public class TransformIterator<S, D> implements Iterator<D> {
+ private final Iterator<S> source;
+
+ private final Function<S, D> transform;
+
+ /**
+ * Create a new transform iterator.
+ *
+ * @param source
+ * The source iterator to use.
+ *
+ * @param transform
+ * The transform to apply.
+ */
+ public TransformIterator(final Iterator<S> source, final Function<S, D> transform) {
+ this.source = source;
+ this.transform = transform;
+ }
+
+ @Override
+ public boolean hasNext() {
+ return source.hasNext();
+ }
+
+ @Override
+ public D next() {
+ return transform.apply(source.next());
+ }
+
+}