oracle.toplink.essentials.tools.schemaframework.UniqueKeyConstraint Maven / Gradle / Ivy
/*
* The contents of this file are subject to the terms
* of the Common Development and Distribution License
* (the "License"). You may not use this file except
* in compliance with the License.
*
* You can obtain a copy of the license at
* glassfish/bootstrap/legal/CDDLv1.0.txt or
* https://glassfish.dev.java.net/public/CDDLv1.0.html.
* See the License for the specific language governing
* permissions and limitations under the License.
*
* When distributing Covered Code, include this CDDL
* HEADER in each file and include the License file at
* glassfish/bootstrap/legal/CDDLv1.0.txt. If applicable,
* add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your
* own identifying information: Portions Copyright [yyyy]
* [name of copyright owner]
*/
// Copyright (c) 1998, 2007, Oracle. All rights reserved.
package oracle.toplink.essentials.tools.schemaframework;
import java.io.*;
import java.util.*;
import oracle.toplink.essentials.exceptions.*;
import oracle.toplink.essentials.internal.sessions.AbstractSession;
/**
*
* Purpose: Define a unique key constraint for a table.
*/
public class UniqueKeyConstraint implements Serializable {
protected String name;
protected Vector sourceFields; // field names
public UniqueKeyConstraint() {
this.name = "";
this.sourceFields = new Vector();
}
public UniqueKeyConstraint(String name, String sourceField) {
this();
this.name = name;
sourceFields.addElement(sourceField);
}
public UniqueKeyConstraint(String name, String[] sourceFields) {
this();
this.name = name;
for(String sourceField : sourceFields) {
this.sourceFields.addElement(sourceField);
}
}
/**
* PUBLIC:
*/
public void addSourceField(String sourceField) {
getSourceFields().addElement(sourceField);
}
/**
* INTERNAL:
* Append the database field definition string to the table creation statement.
*/
public void appendDBString(Writer writer, AbstractSession session) {
try {
writer.write("UNIQUE (");
for (Enumeration sourceEnum = getSourceFields().elements();
sourceEnum.hasMoreElements();) {
writer.write((String)sourceEnum.nextElement());
if (sourceEnum.hasMoreElements()) {
writer.write(", ");
}
}
writer.write(")");
} catch (IOException ioException) {
throw ValidationException.fileError(ioException);
}
}
/**
* PUBLIC:
*/
public String getName() {
return name;
}
/**
* PUBLIC:
*/
public Vector getSourceFields() {
return sourceFields;
}
/**
* PUBLIC:
*/
public void setName(String name) {
this.name = name;
}
/**
* PUBLIC:
*/
public void setSourceFields(Vector sourceFields) {
this.sourceFields = sourceFields;
}
}