Added routing interface definitions.

spring-eai-core/src/main/java/org/springframework/integration/router/Aggregator.java

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+/*
+ * Copyright 2002-2007 the original author or 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 org.springframework.integration.router;
+
+import java.util.Collection;
+
+/**
+ * Base interface for aggregators.
+ * 
+ * @author Mark Fisher
+ */
+public interface Aggregator<T> {
+
+	T aggregate(Collection<T> t);
+
+}

spring-eai-core/src/main/java/org/springframework/integration/router/ChannelNameResolver.java

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+/*
+ * Copyright 2002-2007 the original author or 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 org.springframework.integration.router;
+
+/**
+ * Strategy interface for content-based routing to a channel name.
+ * 
+ * @author Mark Fisher
+ */
+public interface ChannelNameResolver<T> {
+
+	String resolve(T t);
+
+}

spring-eai-core/src/main/java/org/springframework/integration/router/ChannelResolver.java

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+/*
+ * Copyright 2002-2007 the original author or 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 org.springframework.integration.router;
+
+import org.springframework.integration.channel.MessageChannel;
+
+/**
+ * Strategy interface for content-based routing to a channel instance.
+ * 
+ * @author Mark Fisher
+ */
+public interface ChannelResolver<T> {
+
+	MessageChannel resolve(T t);
+
+}

spring-eai-core/src/main/java/org/springframework/integration/router/Resequencer.java

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+/*
+ * Copyright 2002-2007 the original author or 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 org.springframework.integration.router;
+
+import java.util.Collection;
+import java.util.List;
+
+/**
+ * Base interface for resequencers.
+ * 
+ * @author Mark Fisher
+ */
+public interface Resequencer<T> {
+
+	List<T> resequence(Collection<T> t);
+
+}

spring-eai-core/src/main/java/org/springframework/integration/router/RoutingBarrier.java

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+/*
+ * Copyright 2002-2007 the original author or 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 org.springframework.integration.router;
+
+/**
+ * Base strategy interface for barriers. Defines the common requirement of
+ * routing scenarios that involve waiting for a particular condition to be
+ * satisfied, such as an {@link Aggregator} or {@link Resequencer}.
+ * 
+ * @author Mark Fisher
+ */
+public interface RoutingBarrier<T> {
+
+	boolean checkCondition(T t);
+
+}

spring-eai-core/src/main/java/org/springframework/integration/router/Splitter.java

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+/*
+ * Copyright 2002-2007 the original author or 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 org.springframework.integration.router;
+
+import java.util.Collection;
+
+/**
+ * Base interface for splitters.
+ * 
+ * @author Mark Fisher
+ */
+public interface Splitter<T> {
+
+	Collection<T> split(T t);
+
+}