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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.hadoop.hive.ql.parse;
 
 
The input signature of a function or operator. The signature basically consists of name, list of parameter types.
 
 
 public class InputSignature {
   private final String name;
   private final ArrayList<TypeInfotypeArray;
 
   @SuppressWarnings("unused")
   private static final Log LOG = LogFactory.getLog(InputSignature.class
       .getName());
 
   public InputSignature(String name) {
     this. = name;
      = new ArrayList<TypeInfo>();
   }
 
   public InputSignature(String nameTypeInfo... classList) {
     this(name);
 
     if (classList.length != 0) {
       for (TypeInfo cl : classList) {
         .add(cl);
       }
     }
   }
 
   public InputSignature(String nameClass<?>... classList) {
     this(name);
 
     if (classList.length != 0) {
       for (Class<?> cl : classList) {
         .add(TypeInfoFactory
             .getPrimitiveTypeInfoFromPrimitiveWritable(cl));
       }
     }
   }
 
   public void add(TypeInfo paramType) {
     .add(paramType);
   }
 
   public String getName() {
     return .toUpperCase();
   }
 
   public ArrayList<TypeInfogetTypeArray() {
     return ;
   }
 
   @Override
   public boolean equals(Object obj) {
     if (obj == null) {
       return false;
     }
 
     InputSignature other = null;
     try {
       other = (InputSignatureobj;
     } catch (ClassCastException cce) {
       return false;
     }
 
     return .equalsIgnoreCase(other.getName())
         && (other.typeArray.equals());
   }
 
   @Override
   public int hashCode() {
     return toString().hashCode();
  }
  public String toString() {
    StringBuilder sb = new StringBuilder();
    sb.append(getName());
    sb.append("(");
    boolean isfirst = true;
    for (TypeInfo cls : getTypeArray()) {
      if (!isfirst) {
        sb.append(",");
      }
      sb.append(cls.toString());
      isfirst = false;
    }
    sb.append(")");
    return sb.toString();
  }
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