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axion 1.0-M1 API: Class BaseAxionCommand
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org.axiondb.engine.commands</FONT>
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Class BaseAxionCommand</H2>
<PRE>
<A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/lang/Object.html">java.lang.Object</A>
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+--<B>org.axiondb.engine.commands.BaseAxionCommand</B>
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<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../org/axiondb/AxionCommand.html">AxionCommand</A></DD>
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<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../org/axiondb/engine/commands/AddConstraintCommand.html">AddConstraintCommand</A>, <A HREF="../../../../org/axiondb/engine/commands/CheckFileStateCommand.html">CheckFileStateCommand</A>, <A HREF="../../../../org/axiondb/engine/commands/CheckpointCommand.html">CheckpointCommand</A>, <A HREF="../../../../org/axiondb/engine/commands/CreateIndexCommand.html">CreateIndexCommand</A>, <A HREF="../../../../org/axiondb/engine/commands/CreateSequenceCommand.html">CreateSequenceCommand</A>, <A HREF="../../../../org/axiondb/engine/commands/CreateTableCommand.html">CreateTableCommand</A>, <A HREF="../../../../org/axiondb/engine/commands/DeleteCommand.html">DeleteCommand</A>, <A HREF="../../../../org/axiondb/engine/commands/DropConstraintCommand.html">DropConstraintCommand</A>, <A HREF="../../../../org/axiondb/engine/commands/DropSequenceCommand.html">DropSequenceCommand</A>, <A HREF="../../../../org/axiondb/engine/commands/DropTableCommand.html">DropTableCommand</A>, <A HREF="../../../../org/axiondb/engine/commands/InsertCommand.html">InsertCommand</A>, <A HREF="../../../../org/axiondb/engine/commands/RemountCommand.html">RemountCommand</A>, <A HREF="../../../../org/axiondb/engine/commands/SelectCommand.html">SelectCommand</A>, <A HREF="../../../../org/axiondb/engine/commands/ShutdownCommand.html">ShutdownCommand</A>, <A HREF="../../../../org/axiondb/engine/commands/UpdateCommand.html">UpdateCommand</A></DD>
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<DT>public abstract class <B>BaseAxionCommand</B><DT>extends <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/lang/Object.html">Object</A><DT>implements <A HREF="../../../../org/axiondb/AxionCommand.html">AxionCommand</A></DL>
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Abstract base <A HREF="../../../../org/axiondb/AxionCommand.html"><CODE>AxionCommand</CODE></A> implementation.
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<DT><B>Version: </B><DD>$Revision: 1.9 $ $Date: 2003/01/06 19:30:56 $</DD>
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<TD><CODE><B><A HREF="../../../../org/axiondb/engine/commands/BaseAxionCommand.html#BaseAxionCommand()">BaseAxionCommand</A></B>()</CODE>
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<CODE>static void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/axiondb/engine/commands/BaseAxionCommand.html#appendBindVariables(org.axiondb.Selectable, java.util.List)">appendBindVariables</A></B>(<A HREF="../../../../org/axiondb/Selectable.html">Selectable</A> sel, <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/util/List.html">List</A> list)</CODE>
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<CODE>static void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/axiondb/engine/commands/BaseAxionCommand.html#appendBindVariables(org.axiondb.WhereNode, java.util.List)">appendBindVariables</A></B>(<A HREF="../../../../org/axiondb/WhereNode.html">WhereNode</A> where, <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/util/List.html">List</A> list)</CODE>
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<CODE>protected void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/axiondb/engine/commands/BaseAxionCommand.html#assertNotReadOnly(org.axiondb.Database)">assertNotReadOnly</A></B>(<A HREF="../../../../org/axiondb/Database.html">Database</A> db)</CODE>
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Throws an <A HREF="../../../../org/axiondb/AxionException.html"><CODE>AxionException</CODE></A> if the given <A HREF="../../../../org/axiondb/Database.html"><CODE>Database</CODE></A> is read-only.</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/axiondb/engine/commands/BaseAxionCommand.html#bind(int, java.lang.Object)">bind</A></B>(int index, <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/lang/Object.html">Object</A> value)</CODE>
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Sets the <i>value</i> of the <i>i</i><sup>th</sup> bind variable within this command.</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/axiondb/engine/commands/BaseAxionCommand.html#clearBindings()">clearBindings</A></B>()</CODE>
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Clears all bind variables within this command.</TD>
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<CODE>protected void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/axiondb/engine/commands/BaseAxionCommand.html#clearBindings(org.axiondb.WhereNode)">clearBindings</A></B>(<A HREF="../../../../org/axiondb/WhereNode.html">WhereNode</A> node)</CODE>
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Clear all <A HREF="../../../../org/axiondb/BindVariable.html"><CODE>BindVariable</CODE></A> bindings within the given <A HREF="../../../../org/axiondb/WhereNode.html"><CODE>node</CODE></A>.</TD>
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<CODE>protected <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/util/Iterator.html">Iterator</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/axiondb/engine/commands/BaseAxionCommand.html#getBindVariableIterator()">getBindVariableIterator</A></B>()</CODE>
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Returns an <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/util/Iterator.html"><CODE>Iterator</CODE></A> over all my <A HREF="../../../../org/axiondb/BindVariable.html"><CODE>BindVariable</CODE></A>s, in the proper order.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/axiondb/engine/commands/BaseAxionCommand.html#getEffectedRowCount()">getEffectedRowCount</A></B>()</CODE>
<BR>
Returns the last row count generated by <A HREF="../../../../org/axiondb/AxionCommand.html#execute(org.axiondb.Database)"><CODE>AxionCommand.execute(org.axiondb.Database)</CODE></A> or <A HREF="../../../../org/axiondb/AxionCommand.html#executeUpdate(org.axiondb.Database)"><CODE>AxionCommand.executeUpdate(org.axiondb.Database)</CODE></A>.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/sql/ResultSet.html">ResultSet</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/axiondb/engine/commands/BaseAxionCommand.html#getResultSet()">getResultSet</A></B>()</CODE>
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Returns the last <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/sql/ResultSet.html"><CODE>ResultSet</CODE></A> generated by <A HREF="../../../../org/axiondb/AxionCommand.html#execute(org.axiondb.Database)"><CODE>AxionCommand.execute(org.axiondb.Database)</CODE></A> or <A HREF="../../../../org/axiondb/AxionCommand.html#executeQuery(org.axiondb.Database)"><CODE>AxionCommand.executeQuery(org.axiondb.Database)</CODE></A>.</TD>
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<CODE>protected <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/util/Set.html">Set</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/axiondb/engine/commands/BaseAxionCommand.html#processWhereTree(org.axiondb.WhereNode)">processWhereTree</A></B>(<A HREF="../../../../org/axiondb/WhereNode.html">WhereNode</A> tree)</CODE>
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Decomposes the given <A HREF="../../../../org/axiondb/WhereNode.html"><CODE>WhereNode</CODE></A> into a <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/util/Set.html"><CODE>Set</CODE></A> of nodes that were originally joined by ANDs, and adds to this set predicates that are implied by the original tree (for example, given <tt>A = 1</tt> and <tt>A = B</tt>, we can infer <tt>B = 1</tt>.)</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/axiondb/engine/commands/BaseAxionCommand.html#setEffectedRowCount(int)">setEffectedRowCount</A></B>(int count)</CODE>
<BR>
If sublasses return a number of rows effected, then upon execution, they should set that number here so it can support <A HREF="../../../../org/axiondb/AxionCommand.html#execute(org.axiondb.Database)"><CODE>AxionCommand.execute(org.axiondb.Database)</CODE></A></TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/axiondb/engine/commands/BaseAxionCommand.html#setResultSet(java.sql.ResultSet)">setResultSet</A></B>(<A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/sql/ResultSet.html">ResultSet</A> rset)</CODE>
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If subclasses create a <A HREF="../../../../org/axiondb/jdbc/AxionResultSet.html"><CODE>AxionResultSet</CODE></A> upon execution, they should set it here so that they can support <A HREF="../../../../org/axiondb/AxionCommand.html#execute(org.axiondb.Database)"><CODE>AxionCommand.execute(org.axiondb.Database)</CODE></A>.</TD>
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<TD><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/lang/Object.html">Object</A></B></TD>
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<TD><CODE><A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/lang/Object.html#clone()">clone</A>, <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/lang/Object.html#equals(java.lang.Object)">equals</A>, <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/lang/Object.html#finalize()">finalize</A>, <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/lang/Object.html#getClass()">getClass</A>, <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/lang/Object.html#hashCode()">hashCode</A>, <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/lang/Object.html#notify()">notify</A>, <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/lang/Object.html#notifyAll()">notifyAll</A>, <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/lang/Object.html#toString()">toString</A>, <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/lang/Object.html#wait()">wait</A>, <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/lang/Object.html#wait(long)">wait</A>, <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/lang/Object.html#wait(long, int)">wait</A></CODE></TD>
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<TD><B>Methods inherited from interface org.axiondb.<A HREF="../../../../org/axiondb/AxionCommand.html">AxionCommand</A></B></TD>
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