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HHH-7794 - Introduce JdbcTypeCodeNameMap
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hibernate-core/src/main/java/org/hibernate/engine/jdbc/internal/JdbcTypeCodeNameMap.java
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/* | ||
* Hibernate, Relational Persistence for Idiomatic Java | ||
* | ||
* Copyright (c) 2012, 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.engine.jdbc.internal; | ||
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import java.lang.reflect.Field; | ||
import java.lang.reflect.Modifier; | ||
import java.sql.Types; | ||
import java.util.concurrent.ConcurrentHashMap; | ||
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/** | ||
* Defines a mapping from JDBC type-code to JDBC type-name as defined by {@link Types}. Mainly intended for | ||
* logging/debugging uses. | ||
* | ||
* @author Steve Ebersole | ||
*/ | ||
public class JdbcTypeCodeNameMap { | ||
public static final JdbcTypeCodeNameMap INSTANCE = new JdbcTypeCodeNameMap(); | ||
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private final ConcurrentHashMap<Integer,String> jdbcTypeCodeMap = generateJdbcTypeCodeMap(); | ||
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private static ConcurrentHashMap<Integer,String> generateJdbcTypeCodeMap() { | ||
final Field[] fields = Types.class.getFields(); | ||
ConcurrentHashMap<Integer,String> cache = new ConcurrentHashMap<Integer,String>( (int)( fields.length * .75 ) + 1 ); | ||
for ( final Field field : fields ) { | ||
if ( Modifier.isStatic( field.getModifiers() ) ) { | ||
if ( int.class.equals( field.getType() ) || Integer.class.equals( field.getType() ) ) { | ||
try { | ||
cache.put( (Integer) field.get( null ), field.getName() ); | ||
} | ||
catch (Throwable ignore) { | ||
} | ||
} | ||
} | ||
} | ||
return cache; | ||
} | ||
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public String getJdbcTypeName(int typeCode) { | ||
return getJdbcTypeName( typeCode, "<unknown:" + typeCode + ">" ); | ||
} | ||
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public String getJdbcTypeName(int typeCode, String defaultReturn) { | ||
final String known = jdbcTypeCodeMap.get( typeCode ); | ||
return known == null ? defaultReturn : known; | ||
} | ||
} |
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