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+/*
+ * SQLElements object-oriented SQL parsing and generation library
+ *
+ * Copyright (c) 2003, 2004, 2005 Israfil Consulting Services Corporation
+ * Copyright (c) 2003, 2004, 2005 Christian Edward Gruber
+ * All Rights Reserved
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, please visit http://www.gnu.org/licenses/lgpl.html
+ *
+ * $Id: SimpleColumn.java 25 2005-12-15 23:36:26Z cgruber $
+ */
+package org.israfil.sqlelements;
+
+import org.israfil.sqlelements.render.SQLRenderContext;
+
+/**
+ * A simple implementation of a Column which takes a name and a table. The table
+ * can be any Table object.
+ *
+ * @author <a href="mailto:cgruber@israfil.net">Christian Edward Gruber </a>
+ * @author Latest: $Author: cgruber $
+ * @version $Revision: 25 $
+ */
+public class SimpleColumn extends AbstractAliasedSQLElement implements Column
+{
+
+ protected Table table;
+ public Table getTable() { return table; }
+
+ protected String name;
+ public String getName() { return name; }
+
+ /**
+ * Constructs a Column implementation instance
+ *
+ * @param table A Table object of which this Column is a field.
+ * @param colName The name of this column
+ */
+ public SimpleColumn(Table table, String colName) {
+ this(table,colName,null);
+ }
+
+ /**
+ * Constructs a Column implementation instance
+ *
+ * @param table A Table object of which this Column is a field.
+ * @param colName The name of this column
+ * @param alias An alternate designation for this column - usually shorter
+ */
+ public SimpleColumn(Table table, String colName, String alias)
+ {
+ super(alias);
+ this.table = table;
+ this.name = colName;
+ }
+
+ public String render(SQLRenderContext context)
+ {
+ return this.name;
+ }
+
+ /**
+ * Convenience method to create batches of SimpleColumns from an array
+ * of names. Note: this cannot be used to create SimpleColumns with
+ * aliases.
+ *
+ * @param table A table, within whom the columns will be created.
+ * @param names An array of column names
+ * @return an array of SimpleColumns
+ */
+ public static SimpleColumn[] createColumns(Table table, String ... names)
+ {
+ SimpleColumn[] result = new SimpleColumn[names.length];
+ for (int i = 0; i < names.length; i++)
+ result[i] = new SimpleColumn(table,names[i]);
+ return result;
+ }
+
+ public String toString()
+ {
+ return "SimpleColumn[" + table + "," + name + "]";
+ }
+
+}