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Diffstat (limited to 'bundles/org.eclipse.osgi.util/src/org/osgi/util/promise/ResolvedPromiseImpl.java')
-rw-r--r--bundles/org.eclipse.osgi.util/src/org/osgi/util/promise/ResolvedPromiseImpl.java83
1 files changed, 83 insertions, 0 deletions
diff --git a/bundles/org.eclipse.osgi.util/src/org/osgi/util/promise/ResolvedPromiseImpl.java b/bundles/org.eclipse.osgi.util/src/org/osgi/util/promise/ResolvedPromiseImpl.java
new file mode 100644
index 000000000..d65146576
--- /dev/null
+++ b/bundles/org.eclipse.osgi.util/src/org/osgi/util/promise/ResolvedPromiseImpl.java
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) OSGi Alliance (2017). All Rights Reserved.
+ *
+ * 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 org.osgi.util.promise;
+
+/**
+ * Resolved Promise implementation.
+ * <p>
+ * This class is not used directly by clients. Clients should use
+ * {@link PromiseFactory#resolved(Object)} to create a resolved {@link Promise}.
+ *
+ * @param <T> The result type associated with the Promise.
+ * @since 1.1
+ * @ThreadSafe
+ * @author $Id$
+ */
+final class ResolvedPromiseImpl<T> extends PromiseImpl<T> {
+ /**
+ * The value of this resolved Promise.
+ */
+ private final T value;
+
+ /**
+ * Initialize this resolved Promise.
+ *
+ * @param value The value of this resolved Promise.
+ * @param factory The factory to use for callbacks and scheduled operations.
+ */
+ ResolvedPromiseImpl(T value, PromiseFactory factory) {
+ super(factory);
+ this.value = value;
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public boolean isDone() {
+ return true;
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public T getValue() {
+ return value;
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public Throwable getFailure() {
+ return null;
+ }
+
+ /**
+ * Return a holder of the result of this PromiseImpl.
+ */
+ @Override
+ Result<T> collect() {
+ return new Result<T>(value);
+ }
+
+ @Override
+ public String toString() {
+ return super.toString() + "[resolved: " + value + "]";
+ }
+}

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