HHH-6745 Sybase ASE dialect improvement

hibernate-core/src/main/java/org/hibernate/dialect/SybaseASE157Dialect.java

@@ -0,0 +1,87 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * Copyright (c) 2011, Red Hat Inc. or third-party contributors as
+ * indicated by the @author tags or express copyright attribution
+ * statements applied by the authors.  All third-party contributions are
+ * distributed under license by Red Hat Inc.
+ *
+ * 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, as published by the Free Software Foundation.
+ *
+ * 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 Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this distribution; if not, write to:
+ * Free Software Foundation, Inc.
+ * 51 Franklin Street, Fifth Floor
+ * Boston, MA  02110-1301  USA
+ */
+package org.hibernate.dialect;
+
+import java.sql.Types;
+import java.util.Map;
+
+import org.hibernate.dialect.function.AnsiTrimEmulationFunction;
+import org.hibernate.dialect.function.NoArgSQLFunction;
+import org.hibernate.dialect.function.SQLFunctionTemplate;
+import org.hibernate.dialect.function.VarArgsSQLFunction;
+import org.hibernate.type.StandardBasicTypes;
+import org.hibernate.LockMode;
+import org.hibernate.LockOptions;
+import org.hibernate.sql.ForUpdateFragment;
+
+/**
+ * An SQL dialect targeting Sybase Adaptive Server Enterprise (ASE) 15.7 and higher.
+ * <p/>
+ *
+ * @author Junyan Ren
+ */
+public class SybaseASE157Dialect extends SybaseASE15Dialect {
+
+	public SybaseASE157Dialect() {
+		super();
+
+		registerFunction( "create_locator", new SQLFunctionTemplate( StandardBasicTypes.BINARY, "create_locator(?1, ?2)" ) );
+		registerFunction( "locator_literal", new SQLFunctionTemplate( StandardBasicTypes.BINARY, "locator_literal(?1, ?2)" ) );
+		registerFunction( "locator_valid", new SQLFunctionTemplate( StandardBasicTypes.BOOLEAN, "locator_valid(?1)" ) );
+		registerFunction( "return_lob", new SQLFunctionTemplate( StandardBasicTypes.BINARY, "return_lob(?1, ?2)" ) );
+		registerFunction( "setdata", new SQLFunctionTemplate( StandardBasicTypes.BOOLEAN, "setdata(?1, ?2, ?3)" ) );
+		registerFunction( "charindex", new SQLFunctionTemplate( StandardBasicTypes.INTEGER, "charindex(?1, ?2, ?3)" ) );
+	}
+
+	// support Lob Locator
+	public boolean supportsExpectedLobUsagePattern() {
+		return true;
+	}
+
+	public boolean supportsLobValueChangePropogation() {
+		return false;
+	}
+
+	// support 'select ... for update [of columns]'
+	public boolean forUpdateOfColumns() {
+		return true;
+	}
+
+	public String getForUpdateString() {
+		return " for update";
+	}
+
+	public String getForUpdateString(String aliases) {
+		return getForUpdateString() + " of " + aliases;
+	}
+
+	public String appendLockHint(LockMode mode, String tableName) {
+		return tableName;
+	}
+
+	public String applyLocksToSql(String sql, LockOptions aliasedLockOptions, Map keyColumnNames) {
+		return sql + new ForUpdateFragment( this, aliasedLockOptions, keyColumnNames ).toFragmentString();
+	}
+
+}