<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <!--NewPage--> <HTML> <HEAD> <!-- Generated by javadoc (build 1.6.0_03) on Mon Jan 31 15:55:51 EST 2011 --> <TITLE> Deleter (Oracle - Berkeley DB Java API) </TITLE> <META NAME="date" CONTENT="2011-01-31"> <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../style.css" TITLE="Style"> <SCRIPT type="text/javascript"> function windowTitle() { if (location.href.indexOf('is-external=true') == -1) { parent.document.title="Deleter (Oracle - Berkeley DB Java API)"; } } </SCRIPT> <NOSCRIPT> </NOSCRIPT> </HEAD> <BODY BGCOLOR="white" onload="windowTitle();"> <HR> <!-- ========= START OF TOP NAVBAR ======= --> <A NAME="navbar_top"><!-- --></A> <A HREF="#skip-navbar_top" title="Skip navigation links"></A> <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> <TR> <TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A NAME="navbar_top_firstrow"><!-- --></A> <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/Deleter.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR> </TABLE> </TD> <TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM> <b>Berkeley DB</b><br><font size="-1"> version 5.1.25</font></EM> </TD> </TR> <TR> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../com/sleepycat/persist/evolve/DeletedClassException.html" title="class in com.sleepycat.persist.evolve"><B>PREV CLASS</B></A> <A HREF="../../../../com/sleepycat/persist/evolve/EntityConverter.html" title="class in com.sleepycat.persist.evolve"><B>NEXT CLASS</B></A></FONT></TD> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html?com/sleepycat/persist/evolve/Deleter.html" target="_top"><B>FRAMES</B></A> <A HREF="Deleter.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--> </SCRIPT> <NOSCRIPT> <A HREF="../../../../allclasses-noframe.html"><B>All Classes</B></A> </NOSCRIPT> </FONT></TD> </TR> <TR> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD> </TR> </TABLE> <A NAME="skip-navbar_top"></A> <!-- ========= END OF TOP NAVBAR ========= --> <HR> <!-- ======== START OF CLASS DATA ======== --> <H2> <FONT SIZE="-1"> com.sleepycat.persist.evolve</FONT> <BR> Class Deleter</H2> <PRE> <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A> <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../com/sleepycat/persist/evolve/Mutation.html" title="class in com.sleepycat.persist.evolve">com.sleepycat.persist.evolve.Mutation</A> <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>com.sleepycat.persist.evolve.Deleter</B> </PRE> <DL> <DT><B>All Implemented Interfaces:</B> <DD><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</A></DD> </DL> <HR> <DL> <DT><PRE>public class <B>Deleter</B><DT>extends <A HREF="../../../../com/sleepycat/persist/evolve/Mutation.html" title="class in com.sleepycat.persist.evolve">Mutation</A></DL> </PRE> <P> A mutation for deleting an entity class or field. <p><strong>WARNING:</strong> The data for the deleted class or field will be destroyed and will be recoverable only by restoring from backup. If you wish to convert the instance data to a different type or format, use a <A HREF="../../../../com/sleepycat/persist/evolve/Conversion.html" title="interface in com.sleepycat.persist.evolve"><CODE>Conversion</CODE></A> mutation instead.</p> <p>For example, to delete a field:</p> <pre class="code"> package my.package; // The old class. Version 0 is implied. // @Entity class Person { String name; String favoriteColors; } // The new class. A new version number must be assigned. // @Entity(version=1) class Person { String name; } // Add the mutation for deleting a field. // Mutations mutations = new Mutations(); mutations.addDeleter(new Deleter(Person.class.getName(), 0, "favoriteColors"); // Configure the mutations as described <A HREF="../../../../com/sleepycat/persist/evolve/Mutations.html" title="class in com.sleepycat.persist.evolve"><CODE>here</CODE></A>.</pre> <p>To delete an entity class:</p> <pre class="code"> package my.package; // The old class. Version 0 is implied. // @Entity class Statistics { ... } // Add the mutation for deleting a class. // Mutations mutations = new Mutations(); mutations.addDeleter(new Deleter("my.package.Statistics", 0)); // Configure the mutations as described <A HREF="../../../../com/sleepycat/persist/evolve/Mutations.html" title="class in com.sleepycat.persist.evolve"><CODE>here</CODE></A>.</pre> <P> <P> <DL> <DT><B>See Also:</B><DD><A HREF="../../../../com/sleepycat/persist/evolve/package-summary.html"><CODE>Class Evolution</CODE></A>, <A HREF="../../../../serialized-form.html#com.sleepycat.persist.evolve.Deleter">Serialized Form</A></DL> <HR> <P> <!-- ======== CONSTRUCTOR SUMMARY ======== --> <A NAME="constructor_summary"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> <B>Constructor Summary</B></FONT></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><B><A HREF="../../../../com/sleepycat/persist/evolve/Deleter.html#Deleter(java.lang.String, int)">Deleter</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> className, int classVersion)</CODE> <BR> Creates a mutation for deleting an entity class.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><B><A HREF="../../../../com/sleepycat/persist/evolve/Deleter.html#Deleter(java.lang.String, int, java.lang.String)">Deleter</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> declaringClass, int declaringClassVersion, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> fieldName)</CODE> <BR> Creates a mutation for deleting the given field from all instances of the given class version.</TD> </TR> </TABLE> <!-- ========== METHOD SUMMARY =========== --> <A NAME="method_summary"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> <B>Method Summary</B></FONT></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../com/sleepycat/persist/evolve/Deleter.html#toString()">toString</A></B>()</CODE> <BR> </TD> </TR> </TABLE> <A NAME="methods_inherited_from_class_com.sleepycat.persist.evolve.Mutation"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> <TH ALIGN="left"><B>Methods inherited from class com.sleepycat.persist.evolve.<A HREF="../../../../com/sleepycat/persist/evolve/Mutation.html" title="class in com.sleepycat.persist.evolve">Mutation</A></B></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><A HREF="../../../../com/sleepycat/persist/evolve/Mutation.html#equals(java.lang.Object)">equals</A>, <A HREF="../../../../com/sleepycat/persist/evolve/Mutation.html#getClassName()">getClassName</A>, <A HREF="../../../../com/sleepycat/persist/evolve/Mutation.html#getClassVersion()">getClassVersion</A>, <A HREF="../../../../com/sleepycat/persist/evolve/Mutation.html#getFieldName()">getFieldName</A>, <A HREF="../../../../com/sleepycat/persist/evolve/Mutation.html#hashCode()">hashCode</A></CODE></TD> </TR> </TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> <TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD> </TR> </TABLE> <P> <!-- ========= CONSTRUCTOR DETAIL ======== --> <A NAME="constructor_detail"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> <B>Constructor Detail</B></FONT></TH> </TR> </TABLE> <A NAME="Deleter(java.lang.String, int)"><!-- --></A><H3> Deleter</H3> <PRE> public <B>Deleter</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> className, int classVersion)</PRE> <DL> <DD>Creates a mutation for deleting an entity class. <P> </DL> <HR> <A NAME="Deleter(java.lang.String, int, java.lang.String)"><!-- --></A><H3> Deleter</H3> <PRE> public <B>Deleter</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> declaringClass, int declaringClassVersion, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> fieldName)</PRE> <DL> <DD>Creates a mutation for deleting the given field from all instances of the given class version. <P> </DL> <!-- ============ METHOD DETAIL ========== --> <A NAME="method_detail"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> <B>Method Detail</B></FONT></TH> </TR> </TABLE> <A NAME="toString()"><!-- --></A><H3> toString</H3> <PRE> public <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>toString</B>()</PRE> <DL> <DD><DL> <DT><B>Overrides:</B><DD><CODE><A HREF="../../../../com/sleepycat/persist/evolve/Mutation.html#toString()">toString</A></CODE> in class <CODE><A HREF="../../../../com/sleepycat/persist/evolve/Mutation.html" title="class in com.sleepycat.persist.evolve">Mutation</A></CODE></DL> </DD> <DD><DL> </DL> </DD> </DL> <!-- ========= END OF CLASS DATA ========= --> <HR> <!-- ======= START OF BOTTOM NAVBAR ====== --> <A NAME="navbar_bottom"><!-- --></A> <A HREF="#skip-navbar_bottom" title="Skip navigation links"></A> <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> <TR> <TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A NAME="navbar_bottom_firstrow"><!-- --></A> <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" 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