| /* |
| * 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. |
| */ |
| package org.apache.vxquery.functions; |
| |
| import javax.xml.namespace.QName; |
| |
| import org.apache.commons.lang3.tuple.Pair; |
| import org.apache.vxquery.types.SequenceType; |
| |
| public final class Signature { |
| private QName[] parameterNames; |
| private boolean varArgs; |
| private SequenceType[] parameterTypes; |
| private SequenceType rType; |
| |
| @SuppressWarnings("unchecked") |
| public Signature(SequenceType rType, Pair<QName, SequenceType>... parameters) { |
| this(rType, false, parameters); |
| } |
| |
| @SuppressWarnings("unchecked") |
| public Signature(SequenceType rType, boolean varArgs, Pair<QName, SequenceType>... parameters) { |
| int len = parameters.length; |
| this.varArgs = varArgs; |
| parameterNames = new QName[len]; |
| parameterTypes = new SequenceType[len]; |
| for (int i = 0; i < parameters.length; ++i) { |
| parameterNames[i] = parameters[i].getLeft(); |
| parameterTypes[i] = parameters[i].getRight(); |
| } |
| this.rType = rType; |
| } |
| |
| public boolean isVarArgs() { |
| return varArgs; |
| } |
| |
| public int getArity() { |
| return parameterTypes.length; |
| } |
| |
| public SequenceType getParameterType(int index) { |
| if (varArgs && parameterTypes.length <= index) { |
| return parameterTypes[parameterTypes.length - 1]; |
| } |
| return parameterTypes[index]; |
| } |
| |
| public QName getParameterName(int index) { |
| if (varArgs && parameterNames.length <= index) { |
| return parameterNames[parameterNames.length - 1]; |
| } |
| return parameterNames[index]; |
| } |
| |
| public SequenceType getReturnType() { |
| return rType; |
| } |
| |
| public void serialize(StringBuffer buffer) { |
| } |
| } |