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: Class DBBean
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<H2>
Class DBBean</H2>
<PRE>
java.lang.Object
|
+--<B>DBBean</B>
</PRE>
<HR>
<DL>
<DT>public class <B>DBBean</B><DT>extends java.lang.Object</DL>
<P>
DBBean - Database bean
<p> a Javabean to perform queries on a JDBC Database,
or excute any other SQL statement
</p>
<p>
Usage:
<pre>
DBean bean = new DBBean();
// setting user and passwd
bean.setUserAndPasswd("bla","bla");
try
{
bean.setConnection("jdbc:fmpro:http://localhost");
Vector names=bean.getTableNames();
Vector[] result=bean.getQueryData(names.get(0).toString());
// print results to screen
for(int i=0;i<result[1].size();++i)
{
//print Header
System.out.print(" "+result[1].get(i));
}
System.out.println();
for(int j=0;j<result[0].size();++j)
{
Vector row=(Vector)result[0].get(j);
//print rows
for(int k=0;k<row.size();++k)
System.out.print(" "+row.get(k));
System.out.println();
}
} catch(Exception e)
{
System.out.println("Error while connecting to database"+ e);
}
</pre>
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<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="DBBean.html#maxHits">maxHits</A></B></CODE>
<BR>
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<TD><CODE><B><A HREF="DBBean.html#DBBean()">DBBean</A></B>()</CODE>
<BR>
Constructs a database bean</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="DBBean.html#DBBean(java.lang.String)">DBBean</A></B>(java.lang.String jdbcConnectionURL)</CODE>
<BR>
Constructs a database bean
and tries to connect to database
specified in the jdbcConnectionURL</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.util.Vector</CODE></FONT></TD>
<TD><CODE><B><A HREF="DBBean.html#getColumnNames()">getColumnNames</A></B>()</CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.sql.Connection</CODE></FONT></TD>
<TD><CODE><B><A HREF="DBBean.html#getConnection()">getConnection</A></B>()</CODE>
<BR>
returns the Connection if null creates a new one from the url property.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.util.Vector</CODE></FONT></TD>
<TD><CODE><B><A HREF="DBBean.html#getLayoutNames(java.lang.String)">getLayoutNames</A></B>(java.lang.String tableName)</CODE>
<BR>
returns a Vector containing the layoutNames for the specified Table
if the database supports this otherwise Vector containing an empty String</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="DBBean.html#getMaxHits()">getMaxHits</A></B>()</CODE>
<BR>
gets the maximum number of hits</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.util.Vector</CODE></FONT></TD>
<TD><CODE><B><A HREF="DBBean.html#getNextRow()">getNextRow</A></B>()</CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.util.Vector[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="DBBean.html#getQueryData(java.lang.String)">getQueryData</A></B>(java.lang.String table)</CODE>
<BR>
Returns the result for select * from table
with maxHits = 500 default value</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.util.Vector[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="DBBean.html#getQueryData(java.lang.String, int)">getQueryData</A></B>(java.lang.String query,
int maxHits)</CODE>
<BR>
Returns the result of the query
or an Vector array of Vectors containing error messages</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.util.Vector</CODE></FONT></TD>
<TD><CODE><B><A HREF="DBBean.html#getTableNames()">getTableNames</A></B>()</CODE>
<BR>
returns a Vector containing the Tablenames or an error message in the Vector</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.sql.ResultSet</CODE></FONT></TD>
<TD><CODE><B><A HREF="DBBean.html#makeQuery(java.lang.String, int)">makeQuery</A></B>(java.lang.String query,
int numberOfHits)</CODE>
<BR>
makes the database Query
with the numberOfHits as maximum</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="DBBean.html#setConnection(java.lang.String)">setConnection</A></B>(java.lang.String url)</CODE>
<BR>
sets the connection of this DBBean to the database specified in the url
property</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="DBBean.html#setConnection(java.lang.String, java.lang.String, java.lang.String)">setConnection</A></B>(java.lang.String url,
java.lang.String user,
java.lang.String passwd)</CODE>
<BR>
sets the connection of this DBBean to the database specified in the url
and the url,user and passwd property of this DBBean instance</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="DBBean.html#setMaxHits(int)">setMaxHits</A></B>(int maxHits)</CODE>
<BR>
sets the maximum number of hits</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="DBBean.html#setPasswd(java.lang.String)">setPasswd</A></B>(java.lang.String passwd)</CODE>
<BR>
sets the database passwd</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="DBBean.html#setURL(java.lang.String)">setURL</A></B>(java.lang.String url)</CODE>
<BR>
just sets the connection URL</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="DBBean.html#setUser(java.lang.String)">setUser</A></B>(java.lang.String user)</CODE>
<BR>
sets the database user</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="DBBean.html#setUserAndPasswd(java.lang.String, java.lang.String)">setUserAndPasswd</A></B>(java.lang.String user,
java.lang.String passwd)</CODE>
<BR>
sets the database user and passwd</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.util.Vector[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="DBBean.html#TestDB(java.sql.DatabaseMetaData)">TestDB</A></B>(java.sql.DatabaseMetaData d)</CODE>
<BR>
Test the database drivers features given by the DatabaseMetaData object</TD>
</TR>
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<TD><B>Methods inherited from class java.lang.Object</B></TD>
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<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
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<A NAME="maxHits"><!-- --></A><H3>
maxHits</H3>
<PRE>
public int <B>maxHits</B></PRE>
<DL>
</DL>
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<A NAME="DBBean()"><!-- --></A><H3>
DBBean</H3>
<PRE>
public <B>DBBean</B>()</PRE>
<DL>
<DD>Constructs a database bean</DL>
<HR>
<A NAME="DBBean(java.lang.String)"><!-- --></A><H3>
DBBean</H3>
<PRE>
public <B>DBBean</B>(java.lang.String jdbcConnectionURL)
throws java.lang.Exception</PRE>
<DL>
<DD>Constructs a database bean
and tries to connect to database
specified in the jdbcConnectionURL<DD><DL>
<DT><B>Parameters:</B><DD><CODE>jdbcConnectionURL</CODE> - url to connect to database</DL>
</DD>
</DL>
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<A NAME="setMaxHits(int)"><!-- --></A><H3>
setMaxHits</H3>
<PRE>
public void <B>setMaxHits</B>(int maxHits)</PRE>
<DL>
<DD>sets the maximum number of hits</DL>
<HR>
<A NAME="getMaxHits()"><!-- --></A><H3>
getMaxHits</H3>
<PRE>
public int <B>getMaxHits</B>()</PRE>
<DL>
<DD>gets the maximum number of hits</DL>
<HR>
<A NAME="getConnection()"><!-- --></A><H3>
getConnection</H3>
<PRE>
public java.sql.Connection <B>getConnection</B>()
throws java.lang.Exception</PRE>
<DL>
<DD>returns the Connection if null creates a new one from the url property.</DL>
<HR>
<A NAME="setConnection(java.lang.String)"><!-- --></A><H3>
setConnection</H3>
<PRE>
public void <B>setConnection</B>(java.lang.String url)
throws java.lang.Exception</PRE>
<DL>
<DD>sets the connection of this DBBean to the database specified in the url
property</DL>
<HR>
<A NAME="setConnection(java.lang.String, java.lang.String, java.lang.String)"><!-- --></A><H3>
setConnection</H3>
<PRE>
public void <B>setConnection</B>(java.lang.String url,
java.lang.String user,
java.lang.String passwd)
throws java.lang.Exception</PRE>
<DL>
<DD>sets the connection of this DBBean to the database specified in the url
and the url,user and passwd property of this DBBean instance</DL>
<HR>
<A NAME="getTableNames()"><!-- --></A><H3>
getTableNames</H3>
<PRE>
public java.util.Vector <B>getTableNames</B>()</PRE>
<DL>
<DD>returns a Vector containing the Tablenames or an error message in the Vector</DL>
<HR>
<A NAME="getLayoutNames(java.lang.String)"><!-- --></A><H3>
getLayoutNames</H3>
<PRE>
public java.util.Vector <B>getLayoutNames</B>(java.lang.String tableName)
throws java.sql.SQLException</PRE>
<DL>
<DD>returns a Vector containing the layoutNames for the specified Table
if the database supports this otherwise Vector containing an empty String</DL>
<HR>
<A NAME="getQueryData(java.lang.String)"><!-- --></A><H3>
getQueryData</H3>
<PRE>
public java.util.Vector[] <B>getQueryData</B>(java.lang.String table)
throws java.sql.SQLException</PRE>
<DL>
<DD>Returns the result for select * from table
with maxHits = 500 default value</DL>
<HR>
<A NAME="getQueryData(java.lang.String, int)"><!-- --></A><H3>
getQueryData</H3>
<PRE>
public java.util.Vector[] <B>getQueryData</B>(java.lang.String query,
int maxHits)
throws java.sql.SQLException</PRE>
<DL>
<DD>Returns the result of the query
or an Vector array of Vectors containing error messages</DL>
<HR>
<A NAME="getColumnNames()"><!-- --></A><H3>
getColumnNames</H3>
<PRE>
public java.util.Vector <B>getColumnNames</B>()</PRE>
<DL>
</DL>
<HR>
<A NAME="makeQuery(java.lang.String, int)"><!-- --></A><H3>
makeQuery</H3>
<PRE>
public java.sql.ResultSet <B>makeQuery</B>(java.lang.String query,
int numberOfHits)
throws java.sql.SQLException</PRE>
<DL>
<DD>makes the database Query
with the numberOfHits as maximum<DD><DL>
<DT><B>Returns:</B><DD>the result as an ResultSet object</DL>
</DD>
</DL>
<HR>
<A NAME="setUser(java.lang.String)"><!-- --></A><H3>
setUser</H3>
<PRE>
public void <B>setUser</B>(java.lang.String user)</PRE>
<DL>
<DD>sets the database user</DL>
<HR>
<A NAME="setPasswd(java.lang.String)"><!-- --></A><H3>
setPasswd</H3>
<PRE>
public void <B>setPasswd</B>(java.lang.String passwd)</PRE>
<DL>
<DD>sets the database passwd</DL>
<HR>
<A NAME="setUserAndPasswd(java.lang.String, java.lang.String)"><!-- --></A><H3>
setUserAndPasswd</H3>
<PRE>
public void <B>setUserAndPasswd</B>(java.lang.String user,
java.lang.String passwd)</PRE>
<DL>
<DD>sets the database user and passwd</DL>
<HR>
<A NAME="setURL(java.lang.String)"><!-- --></A><H3>
setURL</H3>
<PRE>
public void <B>setURL</B>(java.lang.String url)</PRE>
<DL>
<DD>just sets the connection URL</DL>
<HR>
<A NAME="TestDB(java.sql.DatabaseMetaData)"><!-- --></A><H3>
TestDB</H3>
<PRE>
public java.util.Vector[] <B>TestDB</B>(java.sql.DatabaseMetaData d)
throws java.sql.SQLException</PRE>
<DL>
<DD>Test the database drivers features given by the DatabaseMetaData object</DL>
<HR>
<A NAME="getNextRow()"><!-- --></A><H3>
getNextRow</H3>
<PRE>
public java.util.Vector <B>getNextRow</B>()
throws java.lang.Exception</PRE>
<DL>
</DL>
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