/**
* SqlJetColumnPrimaryKey.java
* Copyright (C) 2009-2010 TMate Software Ltd
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
package org.tmatesoft.sqljet.core.internal.schema;
import org.antlr.runtime.tree.CommonTree;
import org.tmatesoft.sqljet.core.schema.ISqlJetColumnPrimaryKey;
import org.tmatesoft.sqljet.core.schema.SqlJetConflictAction;
/**
* @author TMate Software Ltd.
* @author Dmitry Stadnik (dtrace@seznam.cz)
*/
public class SqlJetColumnPrimaryKey extends SqlJetColumnIndexConstraint implements ISqlJetColumnPrimaryKey {
private Boolean ascending;
private boolean autoincremented;
private SqlJetConflictAction conflictAction;
public SqlJetColumnPrimaryKey(SqlJetColumnDef column, String name, CommonTree ast) {
super(column, name);
assert "primary".equalsIgnoreCase(ast.getText());
for (int i = 0; i < ast.getChildCount(); i++) {
CommonTree child = (CommonTree) ast.getChild(i);
if ("asc".equalsIgnoreCase(child.getText())) {
ascending = Boolean.TRUE;
} else if ("desc".equalsIgnoreCase(child.getText())) {
ascending = Boolean.FALSE;
} else if ("autoincrement".equalsIgnoreCase(child.getText())) {
autoincremented = true;
} else if ("conflict".equalsIgnoreCase(child.getText())) {
assert child.getChildCount() == 1;
child = (CommonTree) child.getChild(0);
conflictAction = SqlJetConflictAction.decode(child.getText());
} else {
assert false;
}
}
}
public Boolean isAscending() {
return ascending;
}
public boolean isAutoincremented() {
return autoincremented;
}
public SqlJetConflictAction getConflictAction() {
return conflictAction;
}
@Override
public String toString() {
StringBuffer buffer = new StringBuffer();
buffer.append(super.toString());
if (buffer.length() > 0) {
buffer.append(' ');
}
buffer.append("PRIMARY KEY");
if (ascending == Boolean.TRUE) {
buffer.append(" ASC");
}
if (ascending == Boolean.FALSE) {
buffer.append(" DESC");
}
if (conflictAction != null) {
buffer.append(" ON CONFLICT ");
buffer.append(conflictAction);
}
if (autoincremented) {
buffer.append(" AUTOINCREMENT");
}
return buffer.toString();
}
}