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public <T, ID> T retrieveByPK(BaseEntity baseEntity, ID pk) throws Exception {
return retrieveByPK(baseEntity, pk, null);
}
public <T, ID> T retrieveByPK(BaseEntity baseEntity, ID pk, String[] selectedFields) throws Exception {
if (pk == null) {
throw new IllegalArgumentException("pk is null");
}
T result = null;
Map<String, Object> unionKeyMap = new HashMap<>();
unionKeyMap.put(BeanProcessorHelper.getPkColumn(baseEntity.getClass(), baseEntity.getFullName()), pk);
result = retrieveByUnionKeyMap(baseEntity, unionKeyMap, selectedFields);
return result;
}
public <T> T retrieveByUnionKeyMap(BaseEntity baseEntity, Map<String, Object> unionKeyMap) throws Exception {
return retrieveByUnionKeyMap(baseEntity, unionKeyMap, null);
}
public <T> T retrieveByUnionKeyMap(BaseEntity baseEntity, Map<String, Object> unionKeyMap, String[] selectedFields) throws Exception {
if (unionKeyMap == null) {
throw new IllegalArgumentException("unionKeyMap is null");
}
T result = null;
boolean ormAttributeSign = BeanDataOperateHelper.initOrmAttributeSign(baseEntity);
Map<String, Object> resultMap = null;
SQLParameter param = new SQLParameter();
List<String> conditionList = new ArrayList<>();
for(Map.Entry<String, Object> entry : unionKeyMap.entrySet()){
conditionList.add(entry.getKey());
param.addParam(entry.getValue());
}
Class clz = baseEntity.getClass();
String fullName = baseEntity.getFullName();
Map<String, ORMColumnInfo> types = findColumnInfo(clz, fullName);
Entity entity = MetaEntityHelper.getMetaEntity(fullName);
List<Property> elasticAttributes = entity.getElasticAttributes();
for (Property elasticProperty : elasticAttributes) {
types.remove(elasticProperty.columnName());
}
StringBuffer columnsForQuery = new StringBuffer();
for (String columnName : types.keySet()) {
columnsForQuery.append(columnName).append(",");
}
columnsForQuery.delete(columnsForQuery.length() - 1, columnsForQuery.length());
List<OneToOneType> parallelTypes = BizMetaHelper.getOneToOneField(baseEntity, null, null);
List<OneToOneType> characteristicTypes = BeanProcessorHelper.getCharacteristicOneToOneField(fullName);
StringBuffer condition = new StringBuffer();
for(String s : conditionList){
condition.append(s + "=? and ");
}
condition.delete(condition.length() - 5, condition.length());
if (CollectionUtils.isEmpty(parallelTypes) && CollectionUtils.isEmpty(characteristicTypes)) {
String pkName = BeanProcessorHelper.getPkColumn(clz, fullName);
boolean hasPKField = false;
StringBuffer mainSQL = new StringBuffer();
String tableName = BeanProcessorHelper.getTableName(clz, fullName);
if (selectedFields == null) {
mainSQL.append("SELECT ").append(columnsForQuery).append(" FROM ").append(tableName);
} else {
selectedFields = transPropertyNameToFieldNames(clz, fullName, selectedFields);
String[] columns = getValidNames(fullName, clz, types, baseEntity, selectedFields);
mainSQL.append("SELECT ");
for (int i = 0; i < columns.length; i++) {
if (columns[i] != null) {
mainSQL.append(columns[i]).append(",");
if (columns[i].equalsIgnoreCase(pkName)) {
hasPKField = true;
}
}
}
if (!hasPKField) {
mainSQL.append(pkName).append(",");
}
mainSQL.setLength(mainSQL.length() - 1);
mainSQL.append(" FROM ").append(tableName);
}
mainSQL.append(" WHERE ").append(condition);
BaseProcessor processor = new BeanListProcessor(baseEntity);
List<T> results = getJdbcSession().executeQuery(mainSQL.toString(), param, processor);
if (results.size() >= 1) {
result = results.get(0);
}
} else {
if (logger.isDebugEnabled()) {
logger.debug("query for oneToOne .. {} ", clz.getClasses());
}
Field[] fields = baseEntity.getClass().getDeclaredFields();
String[] propNames = new String[fields.length];
for (int i = 0; i < fields.length; i++) {
propNames[i] = fields[i].getName();
}
String pkName = BeanProcessorHelper.getPkColumn(clz, fullName);
boolean hasPKField = false;
StringBuffer mainSQL = new StringBuffer();
String tableName = BeanProcessorHelper.getTableName(clz, fullName);
StringBuilder mapSQL = new StringBuilder();
mapSQL.append("SELECT * FROM ").append(tableName).append(" WHERE ").append(condition);
List<Map> mapList = getJdbcSession().executeQuery(mapSQL.toString(), param, new MapListProcessor());
if (mapList.size() >= 1) {
resultMap = mapList.get(0);
} else {
logger.debug("查询结果为空！");
return null;
}
if (selectedFields == null) {
mainSQL.append("SELECT ").append(columnsForQuery).append(" FROM ").append(tableName).append(" WHERE ").append(condition);
List<T> results = getJdbcSession().executeQuery(mainSQL.toString(), param, new BeanListProcessor(baseEntity));
if (results.size() >= 1) {
result = results.get(0);
}
for (OneToOneType oneToOneType : characteristicTypes) {
String childSQL = buildSQLWithoutSelectFields(oneToOneType, clz, fullName, resultMap);
if (StringUtils.isNotEmpty(childSQL)) {
characteristicEntityHandler(baseEntity, childSQL, fullName, result, ormAttributeSign);
}
}
for (OneToOneType oneToOneType : parallelTypes) {
String childTable = BeanProcessorHelper.getTableName(oneToOneType.getTargetEntity(), oneToOneType.getTargetFullName());
String childSQL = buildSQLWithoutSelectFields(oneToOneType, clz, fullName, resultMap);
if (StringUtils.isNotEmpty(childSQL)) {
parallelEntityHandler(baseEntity, childSQL, childTable, result, ormAttributeSign);
}
}
} else {
String[] filterFileds = transPropertyNameToFieldNames(clz, fullName, selectedFields);
Set<String> filerdFieldSet = new HashSet<>();
filerdFieldSet.addAll(Arrays.asList(filterFileds));
StringBuilder columnBuilder = new StringBuilder();
for (int i = 0; i < filterFileds.length; i++) {
if (filterFileds[i] != null) {
columnBuilder.append(filterFileds[i]).append(",");
if (filterFileds[i].equalsIgnoreCase(pkName)) {
hasPKField = true;
}
}
}
columnBuilder.append("pubts").append(",");
columnBuilder.append("dr");
if (!hasPKField) {
columnBuilder.append(",").append(pkName);
}
StringBuilder sql = new StringBuilder();
sql.append("SELECT ").append(columnBuilder).append(" FROM ").append(tableName).append(" WHERE ").append(condition);
BaseProcessor processor = new BeanListProcessor(baseEntity);
List<T> results = getJdbcSession().executeQuery(sql.toString(), param, processor);
if (results.size() >= 1) {
result = results.get(0);
}
for (OneToOneType oneToOneType : characteristicTypes) {
Class childClz = oneToOneType.getTargetEntity();
String childTable = BeanProcessorHelper.getTableName(childClz, oneToOneType.getTargetFullName());
String childSQL = buildSQLWithSelectedFields(oneToOneType, clz, fullName, selectedFields, resultMap, childTable);
if (StringUtils.isNotEmpty(childSQL)) {
characteristicEntityHandler(baseEntity, childSQL, fullName, result, ormAttributeSign);
}
}
for (OneToOneType oneToOneType : parallelTypes) {
Class childClz = oneToOneType.getTargetEntity();
String childTable = BeanProcessorHelper.getTableName(childClz, oneToOneType.getTargetFullName());
String childSQL = buildSQLWithSelectedFields(oneToOneType, clz, fullName, selectedFields, resultMap, childTable);
if (StringUtils.isNotEmpty(childSQL)) {
parallelEntityHandler(baseEntity, childSQL, childTable, result, ormAttributeSign);
}
}
}
}
return result;
}
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