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<html>
<head><title>HSQL Database Engine</title></head>
<body bgcolor=#FFFFFF>
<h2>In-Memory Applet: QueryTool</h2>
<applet code="org.hsqldb.util.QueryTool" archive="hsqldb.jar" width="460" height="400" codebase="../lib/">
<param name="database" value=".">
</applet>
<p>
<h2>Description</h2>
In this demo, all data is kept in memory.<br>
The data will be lost if the program is closed.<br>
The QueryTool and the database are running<br>
inside the internet browser.
<p>
<h2>If it does not work</h2>
On some browsers (Netscape 4.6?), the version compiled for
JDK 1.2 does not work. In the Java Console (Communicator
/ Extras / Java Console) you will get something like:
<p>
# Verifier error org/hsqldb/jdbcConnection.getTypeMap()Ljava/util/Map
<p> This means the class java.util.Map was not found. In JDK 1.1, this class does
not exist. When compiled for 1.2, there is a reference to this class required
to conform to the JDBC 2.0 interface. This class itself is never used, but the
reference is required anyway. It looks like most verifiers have no problems
with this, but some have.
<p> The solution for this problem is to recompile (at least the client part) for
JDK 1.1. You will need to install JDK 1.1 before you can do this, then see:
<p><a href="doc/hsqlBuild.html">Build / How to switch to JDK 1.1</a>
</body></html>
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