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package com.venky.swf.db;
import java.io.InputStream;
import java.io.Reader;
import java.math.BigDecimal;
import java.sql.Date;
import java.sql.SQLException;
import java.sql.Time;
import java.sql.Timestamp;
import java.util.List;
import com.venky.core.util.Bucket;
import com.venky.core.util.ExceptionUtil;
import com.venky.swf.db.model.Count;
import com.venky.swf.db.model.Model;
import com.venky.swf.db.table.Table;
import com.venky.swf.sql.Select;
/**
*
* @author venky
*/
public class PostgresqlHelper extends JdbcTypeHelper{
@Override
public boolean isColumnNameAutoLowerCasedInDB(){
return true;
}
@Override
public boolean isQueryTimeoutSupported(){
return false;
}
public boolean isNoWaitSupported() {
return true;
}
@Override
public String getNoWaitLiteral(){
return " NOWAIT ";
}
@Override
public boolean isQueryTimeoutException(SQLException ex){
if (!hasTransactionRolledBack(ex)){
return ex.getSQLState().equals("55P03");
}
return super.isQueryTimeoutException(ex);
}
@Override
public boolean hasTransactionRolledBack(Throwable ex){
if (super.hasTransactionRolledBack(ex)){
return true;
}
SQLException sqlex = (SQLException) ExceptionUtil.getEmbeddedException(ex,SQLException.class);
if (sqlex != null && (sqlex.getSQLState().startsWith("08") || sqlex.getSQLState().startsWith("57"))){
return true;
}
return false;
}
@Override
public String getAutoIncrementInstruction() {
return (" SERIAL ");
}
@Override
public String getCurrentTimeStampKW(){
return "now()";
}
public String getCurrentDateKW(){
return "('now'::text)::date";
}
@Override
public String getDefaultKW(TypeRef<?> ref,Object value){
if (String.class.isAssignableFrom(ref.getJavaClass())){
return "'" + value + "'::character varying";
}
return super.getDefaultKW(ref,value);
}
protected PostgresqlHelper() {
/**
* Specify size and scale for a data type only if the database accepts
* them during table creation
*/
registerjdbcSQLType(Boolean.class, new TypeRef<Boolean>(
java.sql.Types.BIT, "BOOLEAN", 0, 0,false,false,
new BooleanConverter()));
registerjdbcSQLType(boolean.class, new TypeRef<Boolean>(
java.sql.Types.BIT, "BOOLEAN", 0, 0,false,false,
new BooleanConverter()));
registerjdbcSQLType(Byte.class, new TypeRef<Byte>(java.sql.Types.SMALLINT,
"SMALLINT", 0, 0, false,false,new ByteConverter()));
registerjdbcSQLType(byte.class, new TypeRef<Byte>(java.sql.Types.SMALLINT,
"SMALLINT", 0, 0, false,false,new ByteConverter()));
registerjdbcSQLType(Short.class,
new TypeRef<Short>(java.sql.Types.SMALLINT, "SMALLINT", 0, 0,false,false,
new ShortConverter()));
registerjdbcSQLType(short.class,
new TypeRef<Short>(java.sql.Types.SMALLINT, "SMALLINT", 0, 0,false,false,
new ShortConverter()));
registerjdbcSQLType(Integer.class,
new TypeRef<Integer>(java.sql.Types.INTEGER, "INTEGER", 0, 0,false,false,
new IntegerConverter()));
registerjdbcSQLType(int.class, new TypeRef<Integer>(java.sql.Types.INTEGER,
"INTEGER", 0, 0, false,false,new IntegerConverter()));
registerjdbcSQLType(Long.class, new TypeRef<Long>(java.sql.Types.BIGINT,
"BIGINT", 0, 0, false,false,new LongConverter()));
registerjdbcSQLType(long.class, new TypeRef<Long>(java.sql.Types.BIGINT,
"BIGINT", 0, 0, false,false,new LongConverter()));
registerjdbcSQLType(BigDecimal.class, new TypeRef<BigDecimal>(
java.sql.Types.DECIMAL, "DECIMAL", 14, 8,false,false,
new BigDecimalConverter()));// also NUMERIC
registerjdbcSQLType(Float.class, new TypeRef<Float>(java.sql.Types.REAL,
"REAL", 0, 0, false,false,new FloatConverter()));
registerjdbcSQLType(float.class, new TypeRef<Float>(java.sql.Types.REAL,
"REAL", 0, 0, false,false,new FloatConverter()));
registerjdbcSQLType(Double.class, new TypeRef<Double>(
java.sql.Types.DOUBLE, "DOUBLE PRECISION", 0, 0, false,false,new DoubleConverter())); // ALSO
// FLOAT
registerjdbcSQLType(double.class, new TypeRef<Double>(
java.sql.Types.DOUBLE, "DOUBLE PRECISION", 0, 0, false,false,new DoubleConverter())); // ALSO
registerjdbcSQLType(Bucket.class, new TypeRef<Bucket>(
java.sql.Types.DOUBLE, "DOUBLE PRECISION", 0, 0, false,false,new BucketConverter())); // ALSO // FLOAT
registerjdbcSQLType(Date.class, new TypeRef<Date>(java.sql.Types.DATE,
"DATE", 0, 0, true ,false, new DateConverter()));
registerjdbcSQLType(Time.class, new TypeRef<Time>(
java.sql.Types.TIME, "TIME", 0, 0, true, false, new TimeConverter()));
registerjdbcSQLType(java.sql.Timestamp.class, new TypeRef<Timestamp>(
java.sql.Types.TIMESTAMP, "TIMESTAMP", 0, 0, true, false,
new TimestampConverter()));
registerjdbcSQLType(String.class, new TypeRef<String>(
java.sql.Types.VARCHAR, "VARCHAR", 128, 0, true,true,
new StringConverter())); // ALSO CHAR, LONG VARCHAR
registerjdbcSQLType(Reader.class, new TypeRef<Reader>(java.sql.Types.VARCHAR,
"VARCHAR",10485760 , 0, true, true, new ReaderConverter()));
registerjdbcSQLType(InputStream.class, new TypeRef<InputStream>(java.sql.Types.BINARY,
"BYTEA", 0, 0, true, true, new InputStreamConverter()));
registerjdbcSQLType(InputStream.class, new TypeRef<InputStream>(java.sql.Types.BLOB,
"BYTEA", 0, 0, true, true, new InputStreamConverter()));
}
@Override
protected <M extends Model> void updateSequence(Table<M> table){
List<Count> counts = new Select("MAX(id) AS COUNT").from(table.getModelClass()).execute(Count.class);
Count count = counts.get(0);
Select updateSequence = new Select("setval('"+table.getTableName()+"_id_seq',"+ (count.getCount() + 1) +") AS COUNT").from(new String[]{});
updateSequence.addPool(table.getPool());
updateSequence.execute(Count.class);
}
}