bundles/org.simantics.databoard/src/org/simantics/databoard/method/MethodTypeDefinition.java

   1 /*******************************************************************************
   2  *  Copyright (c) 2010 Association for Decentralized Information Management in
   3  *  Industry THTH ry.
   4  *  All rights reserved. This program and the accompanying materials
   5  *  are made available under the terms of the Eclipse Public License v1.0
   6  *  which accompanies this distribution, and is available at
   7  *  http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  *  Contributors:
  10  *      VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.databoard.method;
  13
  14 import org.simantics.databoard.Bindings;
  15 import org.simantics.databoard.Datatypes;
  16 import org.simantics.databoard.binding.Binding;
  17 import org.simantics.databoard.type.Component;
  18 import org.simantics.databoard.type.Datatype;
  19 import org.simantics.databoard.type.UnionType;
  20
  21
  22 public class MethodTypeDefinition implements Comparable<MethodTypeDefinition> {
  23
  24         public static Binding BINDING = Bindings.getBindingUnchecked( MethodTypeDefinition.class );
  25
  26         String name;
  27         MethodType type;
  28
  29         private transient int hash;
  30
  31         public MethodTypeDefinition(String name, MethodType type)
  32         {
  33                 this.name = name;
  34                 this.type = type;
  35                 hash = name.hashCode() + type.hashCode()*7;
  36         }
  37
  38         public String getName() {
  39                 return name;
  40         }
  41
  42         public void setName(String name) {
  43                 this.name = name;
  44                 hash = name.hashCode() + type.hashCode()*7;
  45         }
  46
  47         public MethodType getType() {
  48                 return type;
  49         }
  50
  51         @Override
  52         public String toString() {
  53                 Datatype void_ = Datatypes.getDatatypeUnchecked(void.class);
  54                 StringBuilder sb = new StringBuilder();
  55
  56                 Datatype res = type.getResponseType();
  57                 Datatype req = type.getRequestType();
  58                 UnionType err = (UnionType) type.getErrorType();
  59
  60                 sb.append("method ");
  61                 sb.append(name);
  62                 sb.append(" : ");
  63                 sb.append(req.toSingleLineString());
  64                 sb.append(" -> ");
  65
  66                 if (res.equals(void_))
  67                         sb.append("void");
  68                 else
  69                         sb.append(res.toSingleLineString());
  70
  71                 if (err.getComponentCount()>0) {
  72                         sb.append(" throws ");
  73                         for (int i=0; i<err.getComponentCount(); i++) {
  74                                 if (i>0) sb.append(", ");
  75                                 Component c = err.getComponent(i);
  76                                 sb.append( c.name );
  77                                 sb.append( c.type.toSingleLineString() );
  78                         }
  79                 }
  80                 return sb.toString();
  81         }
  82
  83         @Override
  84         public int hashCode() {
  85                 return hash;
  86         }
  87
  88         @Override
  89         public boolean equals(Object obj) {
  90                 if (obj instanceof MethodTypeDefinition==false) return false;
  91                 MethodTypeDefinition other = (MethodTypeDefinition) obj;
  92                 return other.name.equals(name) && other.type.equals(type);
  93         }
  94
  95         @Override
  96         public int compareTo(MethodTypeDefinition o) {
  97                 int c = name.compareTo( o.getName() );
  98                 if (c!=0) return c;
  99                 c = type.compareTo( o.getType() );
 100                 return c;
 101         }
 102
 103 }
 104