package com.zycus.dotproject.bo;
import java.io.Serializable;
import java.lang.reflect.Method;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Properties;
import org.hibernate.HibernateException;
import org.hibernate.type.NullableType;
import org.hibernate.type.TypeFactory;
import org.hibernate.usertype.ParameterizedType;
import org.hibernate.usertype.UserType;
public class GenericEnumUserType implements UserType, ParameterizedType {
private static final String DEFAULT_IDENTIFIER_METHOD_NAME = "name";
private static final String DEFAULT_VALUE_OF_METHOD_NAME = "valueOf";
private Class enumClass = null;
private Class identifierType = null;
private Method identifierMethod = null;
private Method valueOfMethod = null;
private NullableType type = null;
private int[] sqlTypes = null;
public void setParameterValues(Properties parameters) {
String enumClassName = parameters.getProperty("enumClassName");
try {
enumClass = Class.forName(enumClassName).asSubclass(Enum.class);
} catch (ClassNotFoundException cfne) {
throw new HibernateException("Enum class not found", cfne);
}
String identifierMethodName = parameters.getProperty("identifierMethod", DEFAULT_IDENTIFIER_METHOD_NAME);
try {
identifierMethod = enumClass.getMethod(identifierMethodName, new Class[0]);
identifierType = identifierMethod.getReturnType();
} catch (Exception a_th) {
throw new HibernateException("Failed to obtain identifier method", a_th);
}
type = (NullableType) TypeFactory.basic(identifierType.getName());
if (type == null) {
throw new HibernateException("Unsupported identifier type " + identifierType.getName());
}
sqlTypes = new int[] { type.sqlType() };
String valueOfMethodName = parameters.getProperty("valueOfMethod", DEFAULT_VALUE_OF_METHOD_NAME);
try {
valueOfMethod = enumClass.getMethod(valueOfMethodName, new Class[] { identifierType });
} catch (Exception a_th) {
throw new HibernateException("Failed to obtain valueOf method", a_th);
}
}
public Class returnedClass() {
return enumClass;
}
public Object nullSafeGet(ResultSet rs, String[] names, Object owner) throws HibernateException, SQLException {
Object identifier = type.get(rs, names[0]);
if (rs.wasNull()) {
return null;
}
try {
return valueOfMethod.invoke(enumClass, new Object[] { identifier });
} catch (Exception a_th) {
throw new HibernateException("Exception while invoking " + "valueOf method '" + valueOfMethod.getName() + "' of " + "enumeration class '" + enumClass + "'", a_th);
}
}
public void nullSafeSet(PreparedStatement st, Object value, int index) throws HibernateException, SQLException {
try {
if (value == null) {
st.setNull(index, type.sqlType());
} else {
Object identifier = identifierMethod.invoke(value, new Object[0]);
type.set(st, identifier, index);
}
} catch (Exception a_th) {
throw new HibernateException("Exception while invoking " + "identifierMethod '" + identifierMethod.getName() + "' of " + "enumeration class '" + enumClass + "'", a_th);
}
}
public int[] sqlTypes() {
return sqlTypes;
}
public Object assemble(Serializable cached, Object owner) throws HibernateException {
return cached;
}
public Object deepCopy(Object value) throws HibernateException {
return value;
}
public Serializable disassemble(Object value) throws HibernateException {
return (Serializable) value;
}
public boolean equals(Object x, Object y) throws HibernateException {
return x == y;
}
public int hashCode(Object x) throws HibernateException {
return x.hashCode();
}
public boolean isMutable() {
return false;
}
public Object replace(Object original, Object target, Object owner) throws HibernateException {
return original;
}
}