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ExtensibleFile (FMap API) |
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<A HREF="../../../../../../com/iver/cit/gvsig/fmap/write/FileEditionSourceAdapter.html" title="class in com.iver.cit.gvsig.fmap.write"><B>NEXT CLASS</B></A></FONT></TD> |
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SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD> |
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DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD> |
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com.iver.cit.gvsig.fmap.write</FONT>
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<BR>
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Class ExtensibleFile</H2>
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<PRE>
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java.lang.Object |
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<IMG SRC="../../../../../../resources/inherit.gif" ALT="extended by"><B>com.iver.cit.gvsig.fmap.write.ExtensibleFile</B> |
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</PRE>
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<DT>public class <B>ExtensibleFile</B><DT>extends java.lang.Object</DL> |
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<P>
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Clase que representa el fichero donde se pueden meter features creadas por el usuario durante la edici?n. Si se elimina una geometr?a se marca como eliminada. La geometria sigue estando pero se devuelve una geometria nula si se accede a tal geometria. Si se a?ade, se a?ade al final del fichero y si se modifica se pone el shapetype a MODIFIED y a continuaci?n del shapetype se pone el n?mero de registro donde se inserta la modificaci?n. Hay que destacar que un ExtensibleFile no deja de crecer. Si hay n features, y se eliminan 2, sigue habiendo n features, aunque algunas de ellas sean null. Esto se hace con la finalidad de que los ?ndices en los que a?aden las features no cambien por eliminaciones de otras features |
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<!-- ======== NESTED CLASS SUMMARY ======== -->
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<B>Constructor Summary</B></FONT></TD> |
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD><CODE><B><A HREF="../../../../../../com/iver/cit/gvsig/fmap/write/ExtensibleFile.html#ExtensibleFile()">ExtensibleFile</A></B>()</CODE> |
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<BR>
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</TD> |
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</TABLE>
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<!-- ========== METHOD SUMMARY =========== -->
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<B>Method Summary</B></FONT></TD> |
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE> int</CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../../../com/iver/cit/gvsig/fmap/write/ExtensibleFile.html#addGeometry(com.iver.cit.gvsig.fmap.core.IGeometry)">addGeometry</A></B>(<A HREF="../../../../../../com/iver/cit/gvsig/fmap/core/IGeometry.html" title="interface in com.iver.cit.gvsig.fmap.core">IGeometry</A> g)</CODE> |
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<BR>
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A?ade una geometr?a al final del fichero y devuelve la posici?n que ocupa. </TD> |
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE> void</CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../../../com/iver/cit/gvsig/fmap/write/ExtensibleFile.html#close()">close</A></B>()</CODE> |
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<BR>
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Cierra el fichero abierto con create</TD> |
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE> void</CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../../../com/iver/cit/gvsig/fmap/write/ExtensibleFile.html#compact()">compact</A></B>()</CODE> |
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<BR>
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Comprime el fichero ya que las features modificadas pueden estar encadenadas en m?s de un registro.</TD> |
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE> int</CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../../../com/iver/cit/gvsig/fmap/write/ExtensibleFile.html#deleteGeometry(int)">deleteGeometry</A></B>(int id)</CODE> |
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<BR>
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Mete el ?ndice en el bitset deleted para saber que dicho registro est? eliminado</TD> |
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE> <A HREF="../../../../../../com/iver/cit/gvsig/fmap/core/IGeometry.html" title="interface in com.iver.cit.gvsig.fmap.core">IGeometry</A></CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../../../com/iver/cit/gvsig/fmap/write/ExtensibleFile.html#getShape(int)">getShape</A></B>(int index)</CODE> |
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<BR>
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Accede al registro index-?simo del fichero y se cuenta el n?mero de registros eliminados anteriores a dicho registro (n). </TD> |
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE> int</CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../../../com/iver/cit/gvsig/fmap/write/ExtensibleFile.html#getShapeCount()">getShapeCount</A></B>()</CODE> |
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<BR>
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Devuelve el n?mero de registros del fichero contando los que ya han sido eliminados</TD> |
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE> <A HREF="../../../../../../com/iver/cit/gvsig/fmap/core/IGeometry.html" title="interface in com.iver.cit.gvsig.fmap.core">IGeometry</A></CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../../../com/iver/cit/gvsig/fmap/write/ExtensibleFile.html#modifyGeometry(int, com.iver.cit.gvsig.fmap.core.IGeometry)">modifyGeometry</A></B>(int i, |
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<A HREF="../../../../../../com/iver/cit/gvsig/fmap/core/IGeometry.html" title="interface in com.iver.cit.gvsig.fmap.core">IGeometry</A> g)</CODE> |
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<BR>
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Marca la feature i-esima del fichero como modificada (MODIFED), y a continuaci?n del shapetype mete un entero con el n?mero de registro de la feature modificada. </TD> |
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE> void</CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../../../com/iver/cit/gvsig/fmap/write/ExtensibleFile.html#open()">open</A></B>()</CODE> |
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<BR>
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Crea un fichero temporal y lo abre para escritura</TD> |
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE> void</CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../../../com/iver/cit/gvsig/fmap/write/ExtensibleFile.html#restoreGeometry(int, int)">restoreGeometry</A></B>(int i, |
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int type)</CODE> |
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<BR>
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Deshace la eliminaci?n de la geometr?a. </TD> |
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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<CODE> void</CODE></FONT></TD> |
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<TD><CODE><B><A HREF="../../../../../../com/iver/cit/gvsig/fmap/write/ExtensibleFile.html#setGeometry(int, com.iver.cit.gvsig.fmap.core.IGeometry)">setGeometry</A></B>(int index, |
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<A HREF="../../../../../../com/iver/cit/gvsig/fmap/core/IGeometry.html" title="interface in com.iver.cit.gvsig.fmap.core">IGeometry</A> g)</CODE> |
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<BR>
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A?ade la feature en la posici?n index del fichero. </TD> |
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</TR>
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</TABLE>
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<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> |
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> |
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<TD><B>Methods inherited from class java.lang.Object</B></TD> |
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<TR BGCOLOR="white" CLASS="TableRowColor"> |
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<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD> |
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</TABLE>
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<P>
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<!-- ============ FIELD DETAIL =========== -->
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<!-- ========= CONSTRUCTOR DETAIL ======== -->
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<A NAME="constructor_detail"><!-- --></A> |
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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<TD COLSPAN=1><FONT SIZE="+2"> |
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<B>Constructor Detail</B></FONT></TD> |
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</TR>
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</TABLE>
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<A NAME="ExtensibleFile()"><!-- --></A><H3> |
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ExtensibleFile</H3>
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<PRE>
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public <B>ExtensibleFile</B>()</PRE> |
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<DL>
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</DL>
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<!-- ============ METHOD DETAIL ========== -->
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<A NAME="method_detail"><!-- --></A> |
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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<B>Method Detail</B></FONT></TD> |
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</TABLE>
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<A NAME="open()"><!-- --></A><H3> |
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open</H3>
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<PRE>
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public void <B>open</B>() |
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throws <A HREF="../../../../../../com/iver/cit/gvsig/fmap/drivers/DriverIOException.html" title="class in com.iver.cit.gvsig.fmap.drivers">DriverIOException</A></PRE> |
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<DL>
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<DD>Crea un fichero temporal y lo abre para escritura
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<P>
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<DD><DL> |
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<DT><B>Throws:</B> |
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<DD><CODE><A HREF="../../../../../../com/iver/cit/gvsig/fmap/drivers/DriverIOException.html" title="class in com.iver.cit.gvsig.fmap.drivers">DriverIOException</A></CODE></DL> |
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</DD>
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</DL>
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<HR>
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<A NAME="close()"><!-- --></A><H3> |
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close</H3>
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<PRE>
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public void <B>close</B>() |
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throws <A HREF="../../../../../../com/iver/cit/gvsig/fmap/drivers/DriverIOException.html" title="class in com.iver.cit.gvsig.fmap.drivers">DriverIOException</A></PRE> |
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<DL>
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<DD>Cierra el fichero abierto con create
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<P>
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<DD><DL> |
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<DT><B>Throws:</B> |
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<DD><CODE><A HREF="../../../../../../com/iver/cit/gvsig/fmap/drivers/DriverIOException.html" title="class in com.iver.cit.gvsig.fmap.drivers">DriverIOException</A></CODE></DL> |
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</DD>
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</DL>
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<HR>
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<A NAME="deleteGeometry(int)"><!-- --></A><H3> |
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deleteGeometry</H3>
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<PRE>
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public int <B>deleteGeometry</B>(int id)</PRE> |
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<DL>
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<DD>Mete el ?ndice en el bitset deleted para saber que dicho registro est? eliminado
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<P>
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<DD><DL> |
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</DL>
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</DD>
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</DL>
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<HR>
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<A NAME="setGeometry(int, com.iver.cit.gvsig.fmap.core.IGeometry)"><!-- --></A><H3> |
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setGeometry</H3>
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<PRE>
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public void <B>setGeometry</B>(int index, |
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<A HREF="../../../../../../com/iver/cit/gvsig/fmap/core/IGeometry.html" title="interface in com.iver.cit.gvsig.fmap.core">IGeometry</A> g)</PRE> |
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<DL>
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<DD>A?ade la feature en la posici?n index del fichero. Puede darse que la posici?n no sea la ?ltima del fichero, en cuyo caso se copiar? en dicho registro la geometr?a si cabe y lanzar? una excepci?n en caso de que no pueda. Generalmente se debe de invocar ?ste m?todo con un ?ndice distinto al ?ltimo en un marco de comandos con opci?n de deshacer.
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<P>
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<DD><DL> |
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</DL>
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</DD>
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</DL>
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<HR>
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<A NAME="addGeometry(com.iver.cit.gvsig.fmap.core.IGeometry)"><!-- --></A><H3> |
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addGeometry</H3>
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<PRE>
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public int <B>addGeometry</B>(<A HREF="../../../../../../com/iver/cit/gvsig/fmap/core/IGeometry.html" title="interface in com.iver.cit.gvsig.fmap.core">IGeometry</A> g)</PRE> |
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<DL>
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<DD>A?ade una geometr?a al final del fichero y devuelve la posici?n que ocupa. Dicha posici?n no es valida despues de que se haya eliminado alguna geometry del fichero.
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<P>
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<DD><DL> |
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</DL>
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</DD>
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</DL>
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<HR>
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<A NAME="modifyGeometry(int, com.iver.cit.gvsig.fmap.core.IGeometry)"><!-- --></A><H3> |
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modifyGeometry</H3>
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<PRE>
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public <A HREF="../../../../../../com/iver/cit/gvsig/fmap/core/IGeometry.html" title="interface in com.iver.cit.gvsig.fmap.core">IGeometry</A> <B>modifyGeometry</B>(int i, |
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<A HREF="../../../../../../com/iver/cit/gvsig/fmap/core/IGeometry.html" title="interface in com.iver.cit.gvsig.fmap.core">IGeometry</A> g)</PRE> |
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<DL>
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<DD>Marca la feature i-esima del fichero como modificada (MODIFED), y a continuaci?n del shapetype mete un entero con el n?mero de registro de la feature modificada. Inserta la feature modificada al final del fichero. Llama al m?todo addGeometry(int) para esto ?ltimo. Retorna la geometry que se va a sustituir
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<P>
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<DD><DL> |
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</DL>
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</DD>
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</DL>
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<HR>
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<A NAME="restoreGeometry(int, int)"><!-- --></A><H3> |
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restoreGeometry</H3>
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<PRE>
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public void <B>restoreGeometry</B>(int i, |
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int type)</PRE> |
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<DL>
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<DD>Deshace la eliminaci?n de la geometr?a. El par?metro que se pasa es el ?ndice del registro eliminado.
|
| 352 |
<P>
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| 353 |
<DD><DL> |
| 354 |
</DL>
|
| 355 |
</DD>
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| 356 |
</DL>
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| 357 |
<HR>
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| 358 |
|
| 359 |
<A NAME="compact()"><!-- --></A><H3> |
| 360 |
compact</H3>
|
| 361 |
<PRE>
|
| 362 |
public void <B>compact</B>()</PRE> |
| 363 |
<DL>
|
| 364 |
<DD>Comprime el fichero ya que las features modificadas pueden estar encadenadas en m?s de un registro.
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| 365 |
<P>
|
| 366 |
<DD><DL> |
| 367 |
</DL>
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| 368 |
</DD>
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| 369 |
</DL>
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| 370 |
<HR>
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| 371 |
|
| 372 |
<A NAME="getShape(int)"><!-- --></A><H3> |
| 373 |
getShape</H3>
|
| 374 |
<PRE>
|
| 375 |
public <A HREF="../../../../../../com/iver/cit/gvsig/fmap/core/IGeometry.html" title="interface in com.iver.cit.gvsig.fmap.core">IGeometry</A> <B>getShape</B>(int index) |
| 376 |
throws <A HREF="../../../../../../com/iver/cit/gvsig/fmap/drivers/DriverIOException.html" title="class in com.iver.cit.gvsig.fmap.drivers">DriverIOException</A></PRE> |
| 377 |
<DL>
|
| 378 |
<DD>Accede al registro index-?simo del fichero y se cuenta el n?mero de registros eliminados anteriores a dicho registro (n). Se accede al registro (index+n) y se cuentan nuevamente el n?mero de registros eliminados entre index y index+n (m). Se accede a (index+n+m) y asi sucesivamente, hasta que se estabiliza la operaci?n. Entonces se lee el registro y si el shapetype es MODIFIED se salta a la direcci?n siguiente sucesivamente hasta que se encuentra el registro correcto.
|
| 379 |
<P>
|
| 380 |
<DD><DL> |
| 381 |
|
| 382 |
<DT><B>Throws:</B> |
| 383 |
<DD><CODE><A HREF="../../../../../../com/iver/cit/gvsig/fmap/drivers/DriverIOException.html" title="class in com.iver.cit.gvsig.fmap.drivers">DriverIOException</A></CODE></DL> |
| 384 |
</DD>
|
| 385 |
</DL>
|
| 386 |
<HR>
|
| 387 |
|
| 388 |
<A NAME="getShapeCount()"><!-- --></A><H3> |
| 389 |
getShapeCount</H3>
|
| 390 |
<PRE>
|
| 391 |
public int <B>getShapeCount</B>() |
| 392 |
throws <A HREF="../../../../../../com/iver/cit/gvsig/fmap/drivers/DriverIOException.html" title="class in com.iver.cit.gvsig.fmap.drivers">DriverIOException</A></PRE> |
| 393 |
<DL>
|
| 394 |
<DD>Devuelve el n?mero de registros del fichero contando los que ya han sido eliminados
|
| 395 |
<P>
|
| 396 |
<DD><DL> |
| 397 |
|
| 398 |
<DT><B>Throws:</B> |
| 399 |
<DD><CODE><A HREF="../../../../../../com/iver/cit/gvsig/fmap/drivers/DriverIOException.html" title="class in com.iver.cit.gvsig.fmap.drivers">DriverIOException</A></CODE></DL> |
| 400 |
</DD>
|
| 401 |
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