//$Id: SAPDBDialect.java 8749 2005-12-04 17:32:04Z oneovthafew $
// contributed by Brad Clow
package org.hibernate.dialect;
import java.sql.Types;
import org.hibernate.Hibernate;
import org.hibernate.cfg.Environment;
import org.hibernate.dialect.function.NoArgSQLFunction;
import org.hibernate.dialect.function.StandardSQLFunction;
import org.hibernate.dialect.function.VarArgsSQLFunction;
import org.hibernate.dialect.function.SQLFunctionTemplate;
import org.hibernate.sql.CaseFragment;
import org.hibernate.sql.DecodeCaseFragment;
import org.hibernate.sql.OracleJoinFragment;
import org.hibernate.sql.JoinFragment;
import org.hibernate.util.StringHelper;
/**
* An SQL dialect compatible with SAP DB.
* @author Brad Clow
*/
public class SAPDBDialect extends Dialect {
public SAPDBDialect() {
super();
registerColumnType( Types.BIT, "boolean" );
registerColumnType( Types.BIGINT, "fixed(19,0)" );
registerColumnType( Types.SMALLINT, "smallint" );
registerColumnType( Types.TINYINT, "fixed(3,0)" );
registerColumnType( Types.INTEGER, "int" );
registerColumnType( Types.CHAR, "char(1)" );
registerColumnType( Types.VARCHAR, "varchar($l)" );
registerColumnType( Types.FLOAT, "float" );
registerColumnType( Types.DOUBLE, "double precision" );
registerColumnType( Types.DATE, "date" );
registerColumnType( Types.TIME, "time" );
registerColumnType( Types.TIMESTAMP, "timestamp" );
registerColumnType( Types.VARBINARY, "long byte" );
registerColumnType( Types.NUMERIC, "fixed($p,$s)" );
registerColumnType( Types.CLOB, "long varchar" );
registerColumnType( Types.BLOB, "long byte" );
registerFunction( "abs", new StandardSQLFunction("abs") );
registerFunction( "sign", new StandardSQLFunction("sign", Hibernate.INTEGER) );
registerFunction( "exp", new StandardSQLFunction("exp", Hibernate.DOUBLE) );
registerFunction( "ln", new StandardSQLFunction("ln", Hibernate.DOUBLE) );
registerFunction( "log", new StandardSQLFunction("ln", Hibernate.DOUBLE) );
registerFunction( "pi", new NoArgSQLFunction("pi", Hibernate.DOUBLE) );
registerFunction( "power", new StandardSQLFunction("power") );
registerFunction( "acos", new StandardSQLFunction("acos", Hibernate.DOUBLE) );
registerFunction( "asin", new StandardSQLFunction("asin", Hibernate.DOUBLE) );
registerFunction( "atan", new StandardSQLFunction("atan", Hibernate.DOUBLE) );
registerFunction( "cos", new StandardSQLFunction("cos", Hibernate.DOUBLE) );
registerFunction( "cosh", new StandardSQLFunction("cosh", Hibernate.DOUBLE) );
registerFunction( "cot", new StandardSQLFunction("cos", Hibernate.DOUBLE) );
registerFunction( "sin", new StandardSQLFunction("sin", Hibernate.DOUBLE) );
registerFunction( "sinh", new StandardSQLFunction("sinh", Hibernate.DOUBLE) );
registerFunction( "tan", new StandardSQLFunction("tan", Hibernate.DOUBLE) );
registerFunction( "tanh", new StandardSQLFunction("tanh", Hibernate.DOUBLE) );
registerFunction( "radians", new StandardSQLFunction("radians", Hibernate.DOUBLE) );
registerFunction( "degrees", new StandardSQLFunction("degrees", Hibernate.DOUBLE) );
registerFunction( "atan2", new StandardSQLFunction("atan2", Hibernate.DOUBLE) );
registerFunction( "round", new StandardSQLFunction("round") );
registerFunction( "trunc", new StandardSQLFunction("trunc") );
registerFunction( "ceil", new StandardSQLFunction("ceil") );
registerFunction( "floor", new StandardSQLFunction("floor") );
registerFunction( "greatest", new StandardSQLFunction("greatest") );
registerFunction( "least", new StandardSQLFunction("least") );
registerFunction("time", new StandardSQLFunction("time", Hibernate.TIME) );
registerFunction("timestamp", new StandardSQLFunction("timestamp", Hibernate.TIMESTAMP) );
registerFunction("date", new StandardSQLFunction("date", Hibernate.DATE) );
registerFunction("microsecond", new StandardSQLFunction("microsecond", Hibernate.INTEGER) );
registerFunction( "second", new SQLFunctionTemplate(Hibernate.INTEGER, "second(?1)") );
registerFunction( "minute", new SQLFunctionTemplate(Hibernate.INTEGER, "minute(?1)") );
registerFunction( "hour", new SQLFunctionTemplate(Hibernate.INTEGER, "hour(?1)") );
registerFunction( "day", new SQLFunctionTemplate(Hibernate.INTEGER, "day(?1)") );
registerFunction( "month", new SQLFunctionTemplate(Hibernate.INTEGER, "month(?1)") );
registerFunction( "year", new SQLFunctionTemplate(Hibernate.INTEGER, "year(?1)") );
registerFunction( "extract", new SQLFunctionTemplate(Hibernate.INTEGER, "?1(?3)") );
registerFunction("dayname", new StandardSQLFunction("dayname", Hibernate.STRING) );
registerFunction("monthname", new StandardSQLFunction("monthname", Hibernate.STRING) );
registerFunction("dayofmonth", new StandardSQLFunction("dayofmonth", Hibernate.INTEGER) );
registerFunction("dayofweek", new StandardSQLFunction("dayofweek", Hibernate.INTEGER) );
registerFunction("dayofyear", new StandardSQLFunction("dayofyear", Hibernate.INTEGER) );
registerFunction("weekofyear", new StandardSQLFunction("weekofyear", Hibernate.INTEGER) );
registerFunction( "replace", new StandardSQLFunction("replace", Hibernate.STRING) );
registerFunction( "translate", new StandardSQLFunction("translate", Hibernate.STRING) );
registerFunction( "lpad", new StandardSQLFunction("lpad", Hibernate.STRING) );
registerFunction( "rpad", new StandardSQLFunction("rpad", Hibernate.STRING) );
registerFunction( "substr", new StandardSQLFunction("substr", Hibernate.STRING) );
registerFunction( "initcap", new StandardSQLFunction("initcap", Hibernate.STRING) );
registerFunction( "lower", new StandardSQLFunction("lower", Hibernate.STRING) );
registerFunction( "ltrim", new StandardSQLFunction("ltrim", Hibernate.STRING) );
registerFunction( "rtrim", new StandardSQLFunction("rtrim", Hibernate.STRING) );
registerFunction( "lfill", new StandardSQLFunction("ltrim", Hibernate.STRING) );
registerFunction( "rfill", new StandardSQLFunction("rtrim", Hibernate.STRING) );
registerFunction( "soundex", new StandardSQLFunction("soundex", Hibernate.STRING) );
registerFunction( "upper", new StandardSQLFunction("upper", Hibernate.STRING) );
registerFunction( "ascii", new StandardSQLFunction("ascii", Hibernate.STRING) );
registerFunction( "index", new StandardSQLFunction("index", Hibernate.INTEGER) );
registerFunction( "value", new StandardSQLFunction( "value" ) );
registerFunction( "concat", new VarArgsSQLFunction( Hibernate.STRING, "(", "||", ")" ) );
registerFunction( "substring", new StandardSQLFunction( "substr", Hibernate.STRING ) );
registerFunction( "locate", new StandardSQLFunction("index", Hibernate.INTEGER) );
registerFunction( "coalesce", new StandardSQLFunction( "value" ) );
getDefaultProperties().setProperty(Environment.STATEMENT_BATCH_SIZE, DEFAULT_BATCH_SIZE);
}
public boolean dropConstraints() {
return false;
}
public String getAddColumnString() {
return "add";
}
public String getAddForeignKeyConstraintString(
String constraintName,
String[] foreignKey,
String referencedTable,
String[] primaryKey, boolean referencesPrimaryKey
) {
StringBuffer res = new StringBuffer(30)
.append(" foreign key ")
.append(constraintName)
.append(" (")
.append( StringHelper.join(", ", foreignKey) )
.append(") references ")
.append(referencedTable);
if(!referencesPrimaryKey) {
res.append(" (")
.append( StringHelper.join(", ", primaryKey) )
.append(')');
}
return res.toString();
}
public String getAddPrimaryKeyConstraintString(String constraintName) {
return " primary key ";
}
public String getNullColumnString() {
return " null";
}
public String getSequenceNextValString(String sequenceName) {
return "select " + getSelectSequenceNextValString( sequenceName ) + " from dual";
}
public String getSelectSequenceNextValString(String sequenceName) {
return sequenceName + ".nextval";
}
public String getCreateSequenceString(String sequenceName) {
return "create sequence " + sequenceName;
}
public String getDropSequenceString(String sequenceName) {
return "drop sequence " + sequenceName;
}
public String getQuerySequencesString() {
return "select sequence_name from domain.sequences";
}
public JoinFragment createOuterJoinFragment() {
return new OracleJoinFragment();
}
public boolean supportsSequences() {
return true;
}
public CaseFragment createCaseFragment() {
return new DecodeCaseFragment();
}
public boolean supportsTemporaryTables() {
return true;
}
public String getCreateTemporaryTablePostfix() {
return "ignore rollback";
}
public String generateTemporaryTableName(String baseTableName) {
return "temp." + super.generateTemporaryTableName(baseTableName);
}
}