private void resolveTypeHandler() {
if (resultMapping.typeHandler == null && resultMapping.javaType != null) {
Configuration configuration = resultMapping.configuration;
TypeHandlerRegistry typeHandlerRegistry = configuration.getTypeHandlerRegistry();
resultMapping.typeHandler =
typeHandlerRegistry.getTypeHandler(resultMapping.javaType, resultMapping.jdbcType);
}
}
private Object prepareSimpleKeyParameter(
ResultSet rs, ResultMapping resultMapping, Class<?> parameterType, String columnPrefix)
throws SQLException {
final TypeHandler<?> typeHandler;
if (typeHandlerRegistry.hasTypeHandler(parameterType)) {
typeHandler = typeHandlerRegistry.getTypeHandler(parameterType);
} else {
typeHandler = typeHandlerRegistry.getUnknownTypeHandler();
}
return typeHandler.getResult(rs, prependPrefix(resultMapping.getColumn(), columnPrefix));
}
private TypeHandler resolveTypeHandler(
Class clazz, String propertyName, String javaType, JdbcType jdbcType) {
TypeHandler handler;
if (clazz == null) {
// Unknown
handler = typeHandlerRegistry.getUnknownTypeHandler();
} else if (java.util.Map.class.isAssignableFrom(clazz)) {
// Map
if (javaType == null) {
handler = typeHandlerRegistry.getUnknownTypeHandler(); // BUG 1012591 -
// typeHandlerRegistry.getTypeHandler(java.lang.Object.class, jdbcType);
} else {
try {
Class javaClass = typeAliasRegistry.resolveAlias(javaType);
handler = typeHandlerRegistry.getTypeHandler(javaClass, jdbcType);
} catch (Exception e) {
throw new SqlMapException("Error. Could not set TypeHandler. Cause: " + e, e);
}
}
} else if (typeHandlerRegistry.getTypeHandler(clazz, jdbcType) != null) {
// Primitive
handler = typeHandlerRegistry.getTypeHandler(clazz, jdbcType);
} else {
// JavaBean
if (javaType == null) {
Class type = MetaClass.forClass(clazz).getGetterType(propertyName);
handler = typeHandlerRegistry.getTypeHandler(type, jdbcType);
} else {
try {
Class javaClass = typeAliasRegistry.resolveAlias(javaType);
handler = typeHandlerRegistry.getTypeHandler(javaClass, jdbcType);
} catch (Exception e) {
throw new SqlMapException("Error. Could not set TypeHandler. Cause: " + e, e);
}
}
}
return handler;
}
private Object prepareCompositeKeyParameter(
ResultSet rs, ResultMapping resultMapping, Class<?> parameterType, String columnPrefix)
throws SQLException {
final Object parameterObject = instantiateParameterObject(parameterType);
final MetaObject metaObject = configuration.newMetaObject(parameterObject);
boolean foundValues = false;
for (ResultMapping innerResultMapping : resultMapping.getComposites()) {
final Class<?> propType = metaObject.getSetterType(innerResultMapping.getProperty());
final TypeHandler<?> typeHandler = typeHandlerRegistry.getTypeHandler(propType);
final Object propValue =
typeHandler.getResult(rs, prependPrefix(innerResultMapping.getColumn(), columnPrefix));
if (propValue != null) { // issue #353 & #560 do not execute nested query if key is null
metaObject.setValue(innerResultMapping.getProperty(), propValue);
foundValues = true;
}
}
return foundValues ? parameterObject : null;
}