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   1 /**********************************************************************
   2 Copyright (c) 2000, 2002 IBM Corp. and others.
   3 All rights reserved. This program and the accompanying materials
   4 are made available under the terms of the Common Public License v1.0
   5 which accompanies this distribution, and is available at
   6 http://www.eclipse.org/legal/cpl-v10.html
   7
   8 Contributors:
   9     IBM Corporation - Initial implementation
  10     Vicente Fernando - www.alfersoft.com.ar
  11     Christian Perkonig - cperkonig@gmx.at
  12 **********************************************************************/
  13 package net.sourceforge.phpdt.internal.debug.core.model;
  14
  15
  16 import java.util.Iterator;
  17 import java.util.Vector;
  18
  19 import org.eclipse.debug.core.DebugException;
  20 import org.eclipse.debug.core.ILaunch;
  21 import org.eclipse.debug.core.model.IDebugTarget;
  22 import org.eclipse.debug.core.model.IValue;
  23 import org.eclipse.debug.core.model.IVariable;
  24
  25
  26 /**
  27  * PHPValue object belongs to a PHPVariable (is a member of PHPVariable).
  28  * A PHPValue itself can have PHPVariables as children.
  29  *
  30  */
  31 public class PHPValue implements IValue {
  32
  33         final static String[] PEV_NAMES = {"undefined",                 // 0
  34                                            "long",                      // 1
  35                                                                            "double",                    // 2
  36                                                                            "string",                    // 3
  37                                                                            "array",                     // 4
  38                                                                            "object",                    // 5
  39                                                                            "boolean",                   // 6
  40                                                                            "resource",                  // 7
  41                                                                            "reference",                 // 8
  42                                                                            "soft reference"};           // 9
  43         final static int PEVT_UNKNOWN   = 0;
  44         final static int PEVT_LONG              = 1;
  45         final static int PEVT_DOUBLE    = 2;
  46         final static int PEVT_STRING    = 3;
  47         final static int PEVT_ARRAY             = 4;
  48         final static int PEVT_OBJECT    = 5;
  49         final static int PEVT_BOOLEAN   = 6;
  50         final static int PEVT_RESOURCE  = 7;
  51         final static int PEVT_REF               = 8;
  52         final static int PEVT_SOFTREF   = 9;
  53
  54         private int                     fValueType;                             // The type of this value (see the PEVT_... values)
  55         private boolean                 hasChildren;                            // This value (variable) has children (more variables)
  56         private String                  fValueString;                           // The value of this variable as text
  57         private Vector                  fVariables;                             // The children of this variable (other variables) if any
  58         private PHPStackFrame   fStackFrame;                            // The stackframe this value (variable) belongs to
  59                                                                                                                                         //
  60
  61         /**
  62          *
  63          */
  64         PHPValue () {
  65                 this (null, "", PEVT_UNKNOWN, null);                                            // Creates an empty value
  66         }
  67
  68         /**
  69          *
  70          * @param frame       The stackframe this value (and variable) belongs to.
  71          * @param value       The value of this value.
  72          * @param fValueType  The type of this value (see the PEVT_... values).
  73          * @param subitems    This value has subitems.
  74          */
  75         PHPValue (PHPStackFrame frame, String value, int fValueType, Vector subitems)
  76         {
  77                 this.fValueType   = fValueType;
  78                 this.fValueString = value;
  79                 this.fStackFrame  = frame;
  80
  81                 if (subitems != null) {                                     // If there are children for this value (variable)
  82                         this.fVariables = new Vector (subitems);                // Then add the children to this value (variable)
  83                 }
  84                 else {
  85                         this.fVariables = new Vector ();                        // Create an empty vector
  86                 }
  87         }
  88
  89         /**
  90          *
  91          * @param item
  92          */
  93         Vector addVariable (Vector item)
  94         {
  95                 if (item != null) {                                                                                     // If there is something we want to add
  96                         this.fVariables.addAll (item);                          //
  97                 }
  98
  99                 return this.fVariables;
 100         }
 101
 102         /**
 103          *
 104          * @param parent
 105          */
 106         public void setParent (PHPVariable parent) {
 107                 if (!fVariables.isEmpty ()) {                                           // If we have child variables
 108                         Iterator iter = fVariables.iterator ();                                 // Create an iterator for the children
 109
 110                         while (iter.hasNext ()) {                               // As long as we have children
 111                                 ((PHPVariable) iter.next ()).setParent (parent);    // Set all child's parent
 112                         }
 113                 }
 114         }
 115
 116         /**
 117          * @see org.eclipse.debug.core.model.IValue#getReferenceTypeName()
 118          */
 119         public String getReferenceTypeName(){
 120                 return PEV_NAMES[fValueType];
 121         }
 122
 123         /**
 124          *
 125          */
 126         public int getReferenceType(){
 127                 return fValueType;
 128         }
 129
 130         /**
 131          * @param type Set the reference type (see the PEVT_... values).
 132          */
 133         public int setReferenceType (int type) {
 134                 return fValueType = type;
 135         }
 136
 137         /**
 138          * This method is called whenever this value (variable) is changed.
 139          *
 140          * @param value The changed value for this variable.
 141          */
 142         public void setValueString (String value) {
 143                 fValueString = value;
 144         }
 145
 146         /**
 147          * @see org.eclipse.debug.core.model.IValue#getfValueString()
 148          */
 149         public String getValueString() {
 150                 return fValueString;
 151         }
 152
 153         /**
 154          * @see org.eclipse.debug.core.model.IValue#isAllocated()
 155          */
 156         public boolean isAllocated() throws DebugException {
 157                 return false;
 158         }
 159
 160         /**
 161          * @see org.eclipse.debug.core.model.IValue#getVariables()
 162          *
 163          * @return The array of child variable for this value (variable).
 164          */
 165         public IVariable[] getVariables() {
 166                 return (PHPVariable[]) fVariables.toArray (new PHPVariable[fVariables.size ()]);
 167 //              return  (IVariable[])fVariables.toArray();
 168         }
 169
 170         /**
 171          *
 172          */
 173         public Vector getChildVariables () {
 174                 return (fVariables);
 175         }
 176
 177         /**
 178          * @see org.eclipse.debug.core.model.IValue#hasVariables()
 179          *
 180          * @return
 181          * <ul>
 182          * <li> <code>true</code> if this value (variable) has child variables
 183          * <li> <code>false</code> if no child variable available
 184          * </ul>
 185          */
 186         public boolean hasVariables() throws DebugException {
 187                 // return (!fVariables.isEmpty ());
 188                 return (fVariables.size () != 0);
 189         }
 190
 191         /**
 192          * @see org.eclipse.debug.core.model.IDebugElement#getModelIdentifier()
 193          */
 194         public String getModelIdentifier() {
 195                 // TODO Auto-generated method stub
 196                 return null;
 197         }
 198
 199         /**
 200          * @see org.eclipse.debug.core.model.IDebugElement#getDebugTarget()
 201          */
 202         public IDebugTarget getDebugTarget() {
 203                 return fStackFrame.getDebugTarget();
 204         }
 205
 206         /**
 207          * @see org.eclipse.debug.core.model.IDebugElement#getLaunch()
 208          */
 209         public ILaunch getLaunch() {
 210                 return getDebugTarget().getLaunch();
 211         }
 212
 213         /**
 214          * @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class)
 215          */
 216         public Object getAdapter(Class adapter) {
 217                 return null;
 218         }
 219
 220 }