1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2<!--NewPage--> 3<HTML> 4<HEAD> 5<!-- Generated by javadoc (build 1.5.0_04) on Sun Feb 19 05:15:29 PST 2006 --> 6<TITLE> 7DiskStrategy (JPostal API) 8</TITLE> 9 10<META NAME="keywords" CONTENT="org.ahmadsoft.postal.DiskStrategy class"> 11 12<LINK REL ="stylesheet" TYPE="text/css" HREF="/stylesheet.css" TITLE="Style"> 13 14<SCRIPT type="text/javascript"> 15function windowTitle() 16{ 17 parent.document.title="DiskStrategy (JPostal API)"; 18} 19</SCRIPT> 20<NOSCRIPT> 21</NOSCRIPT> 22 23</HEAD> 24 25<BODY BGCOLOR="white" onload="windowTitle();"> 26 27 28<!-- ========= START OF TOP NAVBAR ======= --> 29<A NAME="navbar_top"><!-- --></A> 30<A HREF="#skip-navbar_top" title="Skip navigation links"></A> 31<TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> 32<TR> 33<TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> 34<A NAME="navbar_top_firstrow"><!-- --></A> 35<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> 36 <TR ALIGN="center" VALIGN="top"> 37 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="/org/ahmadsoft/postal/package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> 38 <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> 39 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/DiskStrategy.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> 40 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> 41 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="/deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> 42 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="/index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> 43 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="/help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> 44 </TR> 45</TABLE> 46</TD> 47<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM> 48</EM> 49</TD> 50</TR> 51 52<TR> 53<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> 54 PREV CLASS 55 <A HREF="/org/ahmadsoft/postal/InMemoryStrategy.html" title="class in org.ahmadsoft.postal"><B>NEXT CLASS</B></A></FONT></TD> 56<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> 57 <A HREF="/index.html?org/ahmadsoft/postal/DiskStrategy.html" target="_top"><B>FRAMES</B></A> 58 <A HREF="DiskStrategy.html" target="_top"><B>NO FRAMES</B></A> 59 <SCRIPT type="text/javascript"> 60 <!-- 61 if(window==top) { 62 document.writeln('<A HREF="/allclasses-noframe.html"><B>All Classes</B></A>'); 63 } 64 //--> 65</SCRIPT> 66<NOSCRIPT> 67 <A HREF="/allclasses-noframe.html"><B>All Classes</B></A> 68</NOSCRIPT> 69 70 71</FONT></TD> 72</TR> 73<TR> 74<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> 75 SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD> 76<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> 77DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD> 78</TR> 79</TABLE> 80<A NAME="skip-navbar_top"></A> 81<!-- ========= END OF TOP NAVBAR ========= --> 82 83<HR> 84<!-- ======== START OF CLASS DATA ======== --> 85<H2> 86<FONT SIZE="-1"> 87org.ahmadsoft.postal</FONT> 88<BR> 89Class DiskStrategy</H2> 90<PRE> 91java.lang.Object 92 <IMG SRC="/resources/inherit.gif" ALT="extended by "><B>org.ahmadsoft.postal.DiskStrategy</B> 93</PRE> 94<DL> 95<DT><B>All Implemented Interfaces:</B> <DD><A HREF="/org/ahmadsoft/postal/PostalRetrievalStrategy.html" title="interface in org.ahmadsoft.postal">PostalRetrievalStrategy</A></DD> 96</DL> 97<HR> 98<DL> 99<DT><PRE>public class <B>DiskStrategy</B><DT>extends java.lang.Object<DT>implements <A HREF="/org/ahmadsoft/postal/PostalRetrievalStrategy.html" title="interface in org.ahmadsoft.postal">PostalRetrievalStrategy</A></DL> 100</PRE> 101 102<P> 103A retrieval strategy that looks up from disk every time. There is 104 almost no reason to use this strategy except in an interactive program 105 because, due to the fact that lookups are synchronized, and that every 106 lookup results in a disk access, its time characteristics are very poor. 107 However, its space requirements are constant. 108<P> 109 110<P> 111<DL> 112<DT><B>Author:</B></DT> 113 <DD>Amin Ahmad</DD> 114</DL> 115<HR> 116 117<P> 118 119<!-- ======== CONSTRUCTOR SUMMARY ======== --> 120 121<A NAME="constructor_summary"><!-- --></A> 122<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 123<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> 124<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> 125<B>Constructor Summary</B></FONT></TH> 126</TR> 127<TR BGCOLOR="white" CLASS="TableRowColor"> 128<TD><CODE><B><A HREF="/org/ahmadsoft/postal/DiskStrategy.html#DiskStrategy()">DiskStrategy</A></B>()</CODE> 129 130<BR> 131 </TD> 132</TR> 133</TABLE> 134 135<!-- ========== METHOD SUMMARY =========== --> 136 137<A NAME="method_summary"><!-- --></A> 138<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 139<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> 140<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> 141<B>Method Summary</B></FONT></TH> 142</TR> 143<TR BGCOLOR="white" CLASS="TableRowColor"> 144<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 145<CODE> void</CODE></FONT></TD> 146<TD><CODE><B><A HREF="/org/ahmadsoft/postal/DiskStrategy.html#dispose()">dispose</A></B>()</CODE> 147 148<BR> 149 </TD> 150</TR> 151<TR BGCOLOR="white" CLASS="TableRowColor"> 152<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 153<CODE> java.util.List</CODE></FONT></TD> 154<TD><CODE><B><A HREF="/org/ahmadsoft/postal/DiskStrategy.html#getCandidates(int)">getCandidates</A></B>(int postalCode)</CODE> 155 156<BR> 157 Retrieves a list of candidate cities for a 158 specified postal code.</TD> 159</TR> 160<TR BGCOLOR="white" CLASS="TableRowColor"> 161<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 162<CODE> void</CODE></FONT></TD> 163<TD><CODE><B><A HREF="/org/ahmadsoft/postal/DiskStrategy.html#initialize(java.io.File, java.io.File)">initialize</A></B>(java.io.File _indexFile, 164 java.io.File _dataFile)</CODE> 165 166<BR> 167 Initializes the retrieval strategy with the 168 postal code index and data files.</TD> 169</TR> 170</TABLE> 171 <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> 172<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 173<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> 174<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH> 175</TR> 176<TR BGCOLOR="white" CLASS="TableRowColor"> 177<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD> 178</TR> 179</TABLE> 180 181<P> 182 183<!-- ========= CONSTRUCTOR DETAIL ======== --> 184 185<A NAME="constructor_detail"><!-- --></A> 186<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 187<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> 188<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> 189<B>Constructor Detail</B></FONT></TH> 190</TR> 191</TABLE> 192 193<A NAME="DiskStrategy()"><!-- --></A><H3> 194DiskStrategy</H3> 195<PRE> 196public <B>DiskStrategy</B>()</PRE> 197<DL> 198</DL> 199 200<!-- ============ METHOD DETAIL ========== --> 201 202<A NAME="method_detail"><!-- --></A> 203<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 204<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> 205<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> 206<B>Method Detail</B></FONT></TH> 207</TR> 208</TABLE> 209 210<A NAME="initialize(java.io.File, java.io.File)"><!-- --></A><H3> 211initialize</H3> 212<PRE> 213public void <B>initialize</B>(java.io.File _indexFile, 214 java.io.File _dataFile) 215 throws java.lang.Exception</PRE> 216<DL> 217<DD><B>Description copied from interface: <CODE><A HREF="/org/ahmadsoft/postal/PostalRetrievalStrategy.html#initialize(java.io.File, java.io.File)">PostalRetrievalStrategy</A></CODE></B></DD> 218<DD>Initializes the retrieval strategy with the 219 postal code index and data files. 220<P> 221<DD><DL> 222<DT><B>Specified by:</B><DD><CODE><A HREF="/org/ahmadsoft/postal/PostalRetrievalStrategy.html#initialize(java.io.File, java.io.File)">initialize</A></CODE> in interface <CODE><A HREF="/org/ahmadsoft/postal/PostalRetrievalStrategy.html" title="interface in org.ahmadsoft.postal">PostalRetrievalStrategy</A></CODE></DL> 223</DD> 224<DD><DL> 225 226<DT><B>Throws:</B> 227<DD><CODE>java.lang.Exception</CODE></DL> 228</DD> 229</DL> 230<HR> 231 232<A NAME="getCandidates(int)"><!-- --></A><H3> 233getCandidates</H3> 234<PRE> 235public java.util.List <B>getCandidates</B>(int postalCode)</PRE> 236<DL> 237<DD><B>Description copied from interface: <CODE><A HREF="/org/ahmadsoft/postal/PostalRetrievalStrategy.html#getCandidates(int)">PostalRetrievalStrategy</A></CODE></B></DD> 238<DD>Retrieves a list of candidate cities for a 239 specified postal code. 240<P> 241<DD><DL> 242<DT><B>Specified by:</B><DD><CODE><A HREF="/org/ahmadsoft/postal/PostalRetrievalStrategy.html#getCandidates(int)">getCandidates</A></CODE> in interface <CODE><A HREF="/org/ahmadsoft/postal/PostalRetrievalStrategy.html" title="interface in org.ahmadsoft.postal">PostalRetrievalStrategy</A></CODE></DL> 243</DD> 244<DD><DL> 245<DT><B>Parameters:</B><DD><CODE>postalCode</CODE> - the postal code. 246<DT><B>Returns:</B><DD>a list of candidate cities.</DL> 247</DD> 248</DL> 249<HR> 250 251<A NAME="dispose()"><!-- --></A><H3> 252dispose</H3> 253<PRE> 254public void <B>dispose</B>() 255 throws java.lang.Exception</PRE> 256<DL> 257<DD><DL> 258<DT><B>Specified by:</B><DD><CODE><A HREF="/org/ahmadsoft/postal/PostalRetrievalStrategy.html#dispose()">dispose</A></CODE> in interface <CODE><A HREF="/org/ahmadsoft/postal/PostalRetrievalStrategy.html" title="interface in org.ahmadsoft.postal">PostalRetrievalStrategy</A></CODE></DL> 259</DD> 260<DD><DL> 261 262<DT><B>Throws:</B> 263<DD><CODE>java.lang.Exception</CODE></DL> 264</DD> 265</DL> 266<!-- ========= END OF CLASS DATA ========= --> 267<HR> 268 269 270<!-- ======= START OF BOTTOM NAVBAR ====== --> 271<A NAME="navbar_bottom"><!-- --></A> 272<A HREF="#skip-navbar_bottom" title="Skip navigation links"></A> 273<TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> 274<TR> 275<TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> 276<A NAME="navbar_bottom_firstrow"><!-- --></A> 277<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> 278 <TR ALIGN="center" VALIGN="top"> 279 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="/org/ahmadsoft/postal/package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> 280 <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT 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