Mercurial Hosting > nabble
diff src/fschmidt/db/extras/DbIterator.java @ 68:00520880ad02
add fschmidt source
author | Franklin Schmidt <fschmidt@gmail.com> |
---|---|
date | Sun, 05 Oct 2025 17:24:15 -0600 |
parents | |
children |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/fschmidt/db/extras/DbIterator.java Sun Oct 05 17:24:15 2025 -0600 @@ -0,0 +1,65 @@ +/* +Copyright (c) 2008 Franklin Schmidt <fschmidt@gmail.com> + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + +package fschmidt.db.extras; + +import java.sql.ResultSet; +import java.sql.SQLException; +import java.util.Iterator; +import java.util.NoSuchElementException; +import fschmidt.db.DbTable; +import fschmidt.db.SQLRuntimeException; + + +public final class DbIterator implements Iterator { + private final DbTable table; + private final ResultSet rs; + private Object obj = null; + + public DbIterator(DbTable table,ResultSet rs) { + this.table = table; + this.rs = rs; + } + + public boolean hasNext() { + if( obj != null ) + return true; + try { + if( !rs.next() ) + return false; + obj = table.getDbObject(rs); + return true; + } catch(SQLException e) { + throw new SQLRuntimeException(e); + } + } + + public Object next() { + if( !hasNext() ) + throw new NoSuchElementException(); + return obj; + } + + public void remove() { + throw new UnsupportedOperationException(); + } +}