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Diffstat (limited to 'velocity-engine-core/src/main/java/org/apache/velocity/runtime/parser/node/SetExecutor.java')
-rw-r--r-- | velocity-engine-core/src/main/java/org/apache/velocity/runtime/parser/node/SetExecutor.java | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/velocity-engine-core/src/main/java/org/apache/velocity/runtime/parser/node/SetExecutor.java b/velocity-engine-core/src/main/java/org/apache/velocity/runtime/parser/node/SetExecutor.java new file mode 100644 index 00000000..461c92a8 --- /dev/null +++ b/velocity-engine-core/src/main/java/org/apache/velocity/runtime/parser/node/SetExecutor.java @@ -0,0 +1,87 @@ +package org.apache.velocity.runtime.parser.node; + +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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. + */ + +import org.slf4j.Logger; + +import java.lang.reflect.InvocationTargetException; +import java.lang.reflect.Method; + +/** + * Abstract class that is used to execute an arbitrary + * method that is in introspected. This is the superclass + * for the PutExecutor and SetPropertyExecutor. + * + * There really should be a superclass for this and AbstractExecutor (which should + * be refactored to GetExecutor) because they differ only in the execute() method. + * + * @author <a href="mailto:jvanzyl@apache.org">Jason van Zyl</a> + * @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a> + * @author <a href="mailto:henning@apache.org">Henning P. Schmiedehausen</a> + * @version $Id$ + * @since 1.5 + */ +public abstract class SetExecutor +{ + /** Class logger */ + protected Logger log = null; + + /** + * Method to be executed. + */ + private Method method = null; + + /** + * Execute method against context. + * @param o + * @param value + * @return The result of the invocation. + * @throws IllegalAccessException + * @throws InvocationTargetException + */ + public abstract Object execute(Object o, Object value) + throws IllegalAccessException, InvocationTargetException; + + /** + * Tell whether the executor is alive by looking + * at the value of the method. + * @return True if the executor is alive. + */ + public boolean isAlive() + { + return (method != null); + } + + /** + * @return The method to invoke. + */ + public Method getMethod() + { + return method; + } + + /** + * @param method + */ + protected void setMethod(final Method method) + { + this.method = method; + } +} |