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 ParameterMapping newParseMapping(String token, Class parameterClass) {
// #propertyName,javaType=string,jdbcType=VARCHAR,mode=IN,nullValue=N/A,handler=string,numericScale=2#
StringTokenizer paramParser = new StringTokenizer(token, "=, ", false);
String propertyName = paramParser.nextToken();
TypeHandler typeHandler = null;
Class javaType = null;
JdbcType jdbcType = null;
ParameterMode parameterMode = null;
Integer numericScale = null;
while (paramParser.hasMoreTokens()) {
String field = paramParser.nextToken();
if (paramParser.hasMoreTokens()) {
String value = paramParser.nextToken();
if ("javaType".equals(field)) {
try {
javaType = typeAliasRegistry.resolveAlias(value);
} catch (Exception e) {
throw new SqlMapException("Error loading javaType class");
}
} else if ("jdbcType".equals(field)) {
jdbcType = JdbcType.valueOf(value);
} else if ("mode".equals(field)) {
parameterMode = ParameterMode.valueOf(value);
} else if ("nullValue".equals(field)) {
throw new UnsupportedOperationException(
"iBATIS 3 does not support null value substitution.");
} else if ("handler".equals(field)) {
try {
Object impl = typeAliasRegistry.resolveAlias(value).newInstance();
typeHandler = ((TypeHandler) impl);
} catch (Exception e) {
throw new SqlMapException(
"Error loading class specified by handler field in " + token + ". Cause: " + e, e);
}
} else if ("numericScale".equals(field)) {
try {
numericScale = Integer.valueOf(value);
if (numericScale < 0) {
throw new SqlMapException(
"Value specified for numericScale must be greater than or equal to zero");
}
} catch (NumberFormatException e) {
throw new SqlMapException("Value specified for numericScale is not a valid Integer");
}
} else {
throw new SqlMapException(
"Unrecognized parameter mapping field: '" + field + "' in " + token);
}
} else {
throw new SqlMapException(
"Incorrect inline parameter map format (missmatched name=value pairs): " + token);
}
}
if (typeHandler == null) {
if (parameterClass == null) {
typeHandler = typeHandlerRegistry.getUnknownTypeHandler();
} else {
String javaTypeString = javaType == null ? null : javaType.getName();
typeHandler = resolveTypeHandler(parameterClass, propertyName, javaTypeString, jdbcType);
}
}
if (propertyName != null && propertyName.startsWith("[")) {
propertyName = "_collection" + propertyName;
}
ParameterMapping.Builder mapping =
new ParameterMapping.Builder(configuration, propertyName, typeHandler);
mapping.javaType(javaType);
mapping.jdbcType(jdbcType);
mapping.mode(parameterMode);
mapping.numericScale(numericScale);
return mapping.build();
}