HHH-8362 InformixUniqueDelegate

hibernate-core/src/main/java/org/hibernate/dialect/InformixDialect.java

@@ -28,6 +28,8 @@ import java.sql.Types;
 
 import org.hibernate.MappingException;
 import org.hibernate.dialect.function.VarArgsSQLFunction;
+import org.hibernate.dialect.unique.InformixUniqueDelegate;
+import org.hibernate.dialect.unique.UniqueDelegate;
 import org.hibernate.exception.spi.TemplatedViolatedConstraintNameExtracter;
 import org.hibernate.exception.spi.ViolatedConstraintNameExtracter;
 import org.hibernate.internal.util.JdbcExceptionHelper;
@@ -42,6 +44,8 @@ import org.hibernate.type.StandardBasicTypes;
  * @author Steve Molitor
  */
 public class InformixDialect extends Dialect {
+	
+	private final UniqueDelegate uniqueDelegate;
 
 	/**
 	 * Creates new <code>InformixDialect</code> instance. Sets up the JDBC /
@@ -77,6 +81,8 @@ public class InformixDialect extends Dialect {
 		registerColumnType( Types.VARCHAR, 32739, "lvarchar($l)" );
 
 		registerFunction( "concat", new VarArgsSQLFunction( StandardBasicTypes.STRING, "(", "||", ")" ) );
+		
+		uniqueDelegate = new InformixUniqueDelegate( this );
 	}
 
 	@Override
@@ -286,4 +292,9 @@ public class InformixDialect extends Dialect {
 	public String getCreateTemporaryTablePostfix() {
 		return "with no log";
 	}
+	
+	@Override
+	public UniqueDelegate getUniqueDelegate() {
+		return uniqueDelegate;
+	}
 }

hibernate-core/src/main/java/org/hibernate/dialect/unique/InformixUniqueDelegate.java

@@ -0,0 +1,62 @@
+/* 
+ * Hibernate, Relational Persistence for Idiomatic Java
+ * 
+ * JBoss, Home of Professional Open Source
+ * Copyright 2012 Red Hat Inc. and/or its affiliates and other contributors
+ * as indicated by the @authors tag. All rights reserved.
+ * See the copyright.txt in the distribution for a
+ * full listing of individual contributors.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License, v. 2.1.
+ * This program is distributed in the hope that it will be useful, but WITHOUT A
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
+ * You should have received a copy of the GNU Lesser General Public License,
+ * v.2.1 along with this distribution; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA  02110-1301, USA.
+ */
+package org.hibernate.dialect.unique;
+
+import org.hibernate.dialect.Dialect;
+import org.hibernate.metamodel.relational.UniqueKey;
+
+/**
+ * Informix requires the constraint name to come last on the alter table.
+ * 
+ * @author Brett Meyer
+ */
+public class InformixUniqueDelegate extends DefaultUniqueDelegate {
+	
+	public InformixUniqueDelegate( Dialect dialect ) {
+		super( dialect );
+	}
+
+	// legacy model ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+	@Override
+	public String getAlterTableToAddUniqueKeyCommand(
+			org.hibernate.mapping.UniqueKey uniqueKey,
+			String defaultCatalog,
+			String defaultSchema) {
+		// Do this here, rather than allowing UniqueKey/Constraint to do it.
+		// We need full, simplified control over whether or not it happens.
+		final String tableName = uniqueKey.getTable().getQualifiedName( dialect, defaultCatalog, defaultSchema );
+		final String constraintName = dialect.quote( uniqueKey.getName() );
+		return "alter table " + tableName + " add constraint " + uniqueConstraintSql( uniqueKey ) + " constraint " + constraintName;
+	}
+
+	// new model ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+	@Override
+	public String getAlterTableToAddUniqueKeyCommand(UniqueKey uniqueKey) {
+		// Do this here, rather than allowing UniqueKey/Constraint to do it.
+		// We need full, simplified control over whether or not it happens.
+		final String tableName = uniqueKey.getTable().getQualifiedName( dialect );
+		final String constraintName = dialect.quote( uniqueKey.getName() );
+
+		return "alter table " + tableName + " add constraint " + uniqueConstraintSql( uniqueKey ) + " constraint " + constraintName;
+	}
+}