1 files changed, 128 insertions, 0 deletions
diff --git a/guava/src/com/google/common/collect/TransformedImmutableList.java b/guava/src/com/google/common/collect/TransformedImmutableList.java
new file mode 100644
index 0000000..d9e8588
--- /dev/null
+++ b/guava/src/com/google/common/collect/TransformedImmutableList.java
@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2010 The Guava Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.common.collect;
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import com.google.common.annotations.GwtCompatible;
+
+import java.util.List;
+
+import javax.annotation.Nullable;
+
+/**
+ * A transforming wrapper around an ImmutableList. For internal use only. {@link
+ * #transform(Object)} must be functional.
+ *
+ * @author Louis Wasserman
+ */
+@GwtCompatible
+@SuppressWarnings("serial") // uses writeReplace(), not default serialization
+abstract class TransformedImmutableList<D, E> extends ImmutableList<E> {
+  private class TransformedView extends TransformedImmutableList<D, E> {
+    TransformedView(ImmutableList<D> backingList) {
+      super(backingList);
+    }
+
+    @Override E transform(D d) {
+      return TransformedImmutableList.this.transform(d);
+    }
+  }
+
+  private transient final ImmutableList<D> backingList;
+
+  TransformedImmutableList(ImmutableList<D> backingList) {
+    this.backingList = checkNotNull(backingList);
+  }
+
+  abstract E transform(D d);
+
+  @Override public int indexOf(@Nullable Object object) {
+    if (object == null) {
+      return -1;
+    }
+    for (int i = 0; i < size(); i++) {
+      if (get(i).equals(object)) {
+        return i;
+      }
+    }
+    return -1;
+  }
+
+  @Override public int lastIndexOf(@Nullable Object object) {
+    if (object == null) {
+      return -1;
+    }
+    for (int i = size() - 1; i >= 0; i--) {
+      if (get(i).equals(object)) {
+        return i;
+      }
+    }
+    return -1;
+  }
+
+  @Override public E get(int index) {
+    return transform(backingList.get(index));
+  }
+
+  @Override public UnmodifiableListIterator<E> listIterator(int index) {
+    return new AbstractIndexedListIterator<E>(size(), index) {
+      @Override protected E get(int index) {
+        return TransformedImmutableList.this.get(index);
+      }
+    };
+  }
+
+  @Override public int size() {
+    return backingList.size();
+  }
+
+  @Override public ImmutableList<E> subList(int fromIndex, int toIndex) {
+    return new TransformedView(backingList.subList(fromIndex, toIndex));
+  }
+
+  @Override public boolean equals(@Nullable Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (obj instanceof List) {
+      List<?> list = (List<?>) obj;
+      return size() == list.size()
+          && Iterators.elementsEqual(iterator(), list.iterator());
+    }
+    return false;
+  }
+
+  @Override public int hashCode() {
+    int hashCode = 1;
+    for (E e : this) {
+      hashCode = 31 * hashCode + (e == null ? 0 : e.hashCode());
+    }
+    return hashCode;
+  }
+
+  @Override public Object[] toArray() {
+    return ObjectArrays.toArrayImpl(this);
+  }
+
+  @Override public <T> T[] toArray(T[] array) {
+    return ObjectArrays.toArrayImpl(this, array);
+  }
+
+  @Override boolean isPartialView() {
+    return true;
+  }
+}