package org.hibernate.type.descriptor.sql;
import java.math.BigDecimal;
import java.sql.Blob;
import java.sql.Clob;
import java.sql.Ref;
import java.sql.Struct;
import java.sql.Time;
import java.sql.Timestamp;
import java.sql.Types;
import java.util.Calendar;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.hibernate.mapping.Array;
import org.jboss.logging.Logger;
public class JdbcTypeJavaClassMappings {
private static final Logger log = Logger.getLogger( JdbcTypeJavaClassMappings.class );
public static final JdbcTypeJavaClassMappings INSTANCE = new JdbcTypeJavaClassMappings();
private final ConcurrentHashMap<Class, Integer> javaClassToJdbcTypeCodeMap;
private final ConcurrentHashMap<Integer, Class> jdbcTypeCodeToJavaClassMap;
private JdbcTypeJavaClassMappings() {
javaClassToJdbcTypeCodeMap = buildJdbcJavaClassMappings();
jdbcTypeCodeToJavaClassMap = transpose( javaClassToJdbcTypeCodeMap );
}
public int determineJdbcTypeCodeForJavaClass(Class cls) {
Integer typeCode = javaClassToJdbcTypeCodeMap.get( cls );
if ( typeCode != null ) {
return typeCode;
}
int specialCode = cls.hashCode();
log.debug(
"JDBC type code mapping not known for class [" + cls.getName() + "]; using custom code [" + specialCode + "]"
);
return specialCode;
}
public Class determineJavaClassForJdbcTypeCode(Integer typeCode) {
Class cls = jdbcTypeCodeToJavaClassMap.get( typeCode );
if ( cls != null ) {
return cls;
}
log.debugf(
"Java Class mapping not known for JDBC type code [%s]; using java.lang.Object",
typeCode
);
return Object.class;
}
public Class determineJavaClassForJdbcTypeCode(int typeCode) {
return determineJavaClassForJdbcTypeCode( Integer.valueOf( typeCode ) );
}
private static ConcurrentHashMap<Class, Integer> buildJdbcJavaClassMappings() {
ConcurrentHashMap<Class, Integer> jdbcJavaClassMappings = new ConcurrentHashMap<Class, Integer>();
jdbcJavaClassMappings.put( String.class, Types.VARCHAR );
jdbcJavaClassMappings.put( BigDecimal.class, Types.NUMERIC );
jdbcJavaClassMappings.put( Boolean.class, Types.BIT );
jdbcJavaClassMappings.put( Integer.class, Types.INTEGER );
jdbcJavaClassMappings.put( Long.class, Types.BIGINT );
jdbcJavaClassMappings.put( Float.class, Types.REAL );
jdbcJavaClassMappings.put( Double.class, Types.DOUBLE );
jdbcJavaClassMappings.put( byte[].class, Types.LONGVARBINARY );
jdbcJavaClassMappings.put( java.sql.Date.class, Types.DATE );
jdbcJavaClassMappings.put( Time.class, Types.TIME );
jdbcJavaClassMappings.put( Timestamp.class, Types.TIMESTAMP );
jdbcJavaClassMappings.put( Blob.class, Types.BLOB );
jdbcJavaClassMappings.put( Clob.class, Types.CLOB );
jdbcJavaClassMappings.put( Array.class, Types.ARRAY );
jdbcJavaClassMappings.put( Struct.class, Types.STRUCT );
jdbcJavaClassMappings.put( Ref.class, Types.REF );
jdbcJavaClassMappings.put( Class.class, Types.JAVA_OBJECT );
jdbcJavaClassMappings.put( Character.class, Types.CHAR );
jdbcJavaClassMappings.put( char[].class, Types.VARCHAR );
jdbcJavaClassMappings.put( Character[].class, Types.VARCHAR );
jdbcJavaClassMappings.put( Byte[].class, Types.LONGVARBINARY );
jdbcJavaClassMappings.put( java.util.Date.class, Types.TIMESTAMP );
jdbcJavaClassMappings.put( Calendar.class, Types.TIMESTAMP );
return jdbcJavaClassMappings;
}
private static ConcurrentHashMap<Integer, Class> transpose(ConcurrentHashMap<Class, Integer> javaClassToJdbcTypeCodeMap) {
final ConcurrentHashMap<Integer, Class> transposed = new ConcurrentHashMap<Integer, Class>();
for ( Map.Entry<Class,Integer> entry : javaClassToJdbcTypeCodeMap.entrySet() ) {
transposed.put( entry.getValue(), entry.getKey() );
}
return transposed;
}
}