+/*
+ * Copyright 2005-2011 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.wamblee.xmlrouter.impl;
import java.util.ArrayList;
import org.wamblee.xmlrouter.config.Transformation;
+/**
+ * Transformation path from a source document to a destination.
+ *
+ * @author Erik Brakkee
+ *
+ */
public class TransformationPath {
private List<Transformation> transformations;
+ /**
+ * Constructs empty path.
+ */
public TransformationPath() {
transformations = new ArrayList<Transformation>();
}
+ /**
+ * Constructs path with single transformation.
+ *
+ * @param aTransformation
+ * Single transformation.
+ */
public TransformationPath(Transformation aTransformation) {
this();
transformations.add(aTransformation);
}
+ /**
+ * Constructs path with list of transformations.
+ *
+ * @param aTransformations
+ * List of transformations.
+ */
public TransformationPath(List<Transformation> aTransformations) {
this();
transformations.addAll(aTransformations);
}
+ /**
+ * Appends a transormation path to the current path.
+ *
+ * @param aSequence
+ * Transformation sequence to append.
+ * @return Appended transformations equence.
+ * @throws Runtime
+ * exception if the appended transformation would not be valid.
+ */
public TransformationPath appendPath(TransformationPath aSequence) {
if (transformations.isEmpty()) {
return new TransformationPath(aSequence.transformations);
return new TransformationPath(t);
}
+ /**
+ * @return Number of transformations.
+ */
public int size() {
return transformations.size();
}
+ /**
+ * @return From type of the path or null if the sequence is empty.
+ */
public String getFromType() {
if (transformations.isEmpty()) {
return null;
return transformations.get(0).getFromType();
}
+ /**
+ * @return To type of the path or null if the sequence is empty.
+ */
public String getToType() {
if (transformations.isEmpty()) {
return null;
return transformations.get(transformations.size() - 1).getToType();
}
+ /**
+ * @return The transformations.
+ */
public List<Transformation> getTransformations() {
return transformations;
}