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
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--- /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
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+/*
+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();
+	}
+}