优化 where 和 JOIN 解析代码
This commit is contained in:
TommyLemon
parent
cf7bdd74e4
commit
3ea3e61215
@ -2585,6 +2585,87 @@ public abstract class AbstractSQLConfig implements SQLConfig {
|
||||
setPreparedValueList(prepreadValues);
|
||||
}
|
||||
|
||||
whereString = concatJoinWhereString(whereString);
|
||||
|
||||
String result = StringUtil.isEmpty(whereString, true) ? "" : (hasPrefix ? " WHERE " : "") + whereString;
|
||||
|
||||
if (result.isEmpty() && RequestMethod.isQueryMethod(method) == false) {
|
||||
throw new UnsupportedOperationException("写操作请求必须带条件！！！");
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
public String getWhereString(boolean hasPrefix, RequestMethod method, Map<String, Object> where, Map<String, List<String>> combine, List<Join> joinList, boolean verifyName) throws Exception {
|
||||
Set<Entry<String, List<String>>> combineSet = combine == null ? null : combine.entrySet();
|
||||
if (combineSet == null || combineSet.isEmpty()) {
|
||||
Log.w(TAG, "getWhereString combineSet == null || combineSet.isEmpty() >> return \"\";");
|
||||
return "";
|
||||
}
|
||||
|
||||
List<String> keyList;
|
||||
|
||||
String whereString = "";
|
||||
|
||||
boolean isCombineFirst = true;
|
||||
int logic;
|
||||
|
||||
boolean isItemFirst;
|
||||
String c;
|
||||
String cs;
|
||||
|
||||
for (Entry<String, List<String>> ce : combineSet) {
|
||||
keyList = ce == null ? null : ce.getValue();
|
||||
if (keyList == null || keyList.isEmpty()) {
|
||||
continue;
|
||||
}
|
||||
|
||||
if ("|".equals(ce.getKey())) {
|
||||
logic = Logic.TYPE_OR;
|
||||
}
|
||||
else if ("!".equals(ce.getKey())) {
|
||||
logic = Logic.TYPE_NOT;
|
||||
}
|
||||
else {
|
||||
logic = Logic.TYPE_AND;
|
||||
}
|
||||
|
||||
isItemFirst = true;
|
||||
cs = "";
|
||||
for (String key : keyList) {
|
||||
c = getWhereItem(key, where.get(key), method, verifyName);
|
||||
|
||||
if (StringUtil.isEmpty(c, true)) {//避免SQL条件连接错误
|
||||
continue;
|
||||
}
|
||||
|
||||
cs += (isItemFirst ? "" : (Logic.isAnd(logic) ? AND : OR)) + "(" + c + ")";
|
||||
isItemFirst = false;
|
||||
}
|
||||
|
||||
if (StringUtil.isEmpty(cs, true)) {//避免SQL条件连接错误
|
||||
continue;
|
||||
}
|
||||
|
||||
whereString += (isCombineFirst ? "" : AND) + (Logic.isNot(logic) ? NOT : "") + " ( " + cs + " ) ";
|
||||
isCombineFirst = false;
|
||||
}
|
||||
|
||||
whereString = concatJoinWhereString(whereString);
|
||||
|
||||
String s = StringUtil.isEmpty(whereString, true) ? "" : (hasPrefix ? " WHERE " : "") + whereString;
|
||||
|
||||
if (s.isEmpty() && RequestMethod.isQueryMethod(method) == false) {
|
||||
throw new UnsupportedOperationException("写操作请求必须带条件！！！");
|
||||
}
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
|
||||
protected String concatJoinWhereString(String whereString) throws Exception {
|
||||
List<Join> joinList = getJoinList();
|
||||
if (joinList != null) {
|
||||
|
||||
String newWs = "";
|
||||
@ -2711,207 +2792,9 @@ public abstract class AbstractSQLConfig implements SQLConfig {
|
||||
}
|
||||
}
|
||||
|
||||
String result = StringUtil.isEmpty(whereString, true) ? "" : (hasPrefix ? " WHERE " : "") + whereString;
|
||||
|
||||
if (result.isEmpty() && RequestMethod.isQueryMethod(method) == false) {
|
||||
throw new UnsupportedOperationException("写操作请求必须带条件！！！");
|
||||
return whereString;
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
|
||||
public String getWhereString(boolean hasPrefix, RequestMethod method, Map<String, Object> where, Map<String, List<String>> combine, List<Join> joinList, boolean verifyName) throws Exception {
|
||||
Set<Entry<String, List<String>>> combineSet = combine == null ? null : combine.entrySet();
|
||||
if (combineSet == null || combineSet.isEmpty()) {
|
||||
Log.w(TAG, "getWhereString combineSet == null || combineSet.isEmpty() >> return \"\";");
|
||||
return "";
|
||||
}
|
||||
|
||||
List<String> keyList;
|
||||
|
||||
String whereString = "";
|
||||
|
||||
boolean isCombineFirst = true;
|
||||
int logic;
|
||||
|
||||
boolean isItemFirst;
|
||||
String c;
|
||||
String cs;
|
||||
|
||||
for (Entry<String, List<String>> ce : combineSet) {
|
||||
keyList = ce == null ? null : ce.getValue();
|
||||
if (keyList == null || keyList.isEmpty()) {
|
||||
continue;
|
||||
}
|
||||
|
||||
if ("|".equals(ce.getKey())) {
|
||||
logic = Logic.TYPE_OR;
|
||||
}
|
||||
else if ("!".equals(ce.getKey())) {
|
||||
logic = Logic.TYPE_NOT;
|
||||
}
|
||||
else {
|
||||
logic = Logic.TYPE_AND;
|
||||
}
|
||||
|
||||
isItemFirst = true;
|
||||
cs = "";
|
||||
for (String key : keyList) {
|
||||
c = getWhereItem(key, where.get(key), method, verifyName);
|
||||
|
||||
if (StringUtil.isEmpty(c, true)) {//避免SQL条件连接错误
|
||||
continue;
|
||||
}
|
||||
|
||||
cs += (isItemFirst ? "" : (Logic.isAnd(logic) ? AND : OR)) + "(" + c + ")";
|
||||
isItemFirst = false;
|
||||
}
|
||||
|
||||
if (StringUtil.isEmpty(cs, true)) {//避免SQL条件连接错误
|
||||
continue;
|
||||
}
|
||||
|
||||
whereString += (isCombineFirst ? "" : AND) + (Logic.isNot(logic) ? NOT : "") + " ( " + cs + " ) ";
|
||||
isCombineFirst = false;
|
||||
}
|
||||
|
||||
|
||||
if (joinList != null) {
|
||||
|
||||
String newWs = "";
|
||||
String ws = whereString;
|
||||
|
||||
List<Object> newPvl = new ArrayList<>();
|
||||
List<Object> pvl = new ArrayList<>(preparedValueList);
|
||||
|
||||
SQLConfig jc;
|
||||
String js;
|
||||
|
||||
boolean changed = false;
|
||||
//各种 JOIN 没办法统一用 & | ！连接，只能按优先级，和 @combine 一样?
|
||||
for (Join j : joinList) {
|
||||
String jt = j.getJoinType();
|
||||
|
||||
switch (jt) {
|
||||
case "*": // CROSS JOIN
|
||||
case "@": // APP JOIN
|
||||
case "<": // LEFT JOIN
|
||||
case ">": // RIGHT JOIN
|
||||
break;
|
||||
|
||||
case "&": // INNER JOIN: A & B
|
||||
case "": // FULL JOIN: A | B
|
||||
case "|": // FULL JOIN: A | B
|
||||
case "!": // OUTER JOIN: ! (A | B)
|
||||
case "^": // SIDE JOIN: ! (A & B)
|
||||
case "(": // ANTI JOIN: A & ! B
|
||||
case ")": // FOREIGN JOIN: B & ! A
|
||||
jc = j.getJoinConfig();
|
||||
boolean isMain = jc.isMain();
|
||||
jc.setMain(false).setPrepared(isPrepared()).setPreparedValueList(new ArrayList<Object>());
|
||||
js = jc.getWhereString(false);
|
||||
jc.setMain(isMain);
|
||||
|
||||
boolean isOuterJoin = "!".equals(jt);
|
||||
boolean isSideJoin = "^".equals(jt);
|
||||
boolean isAntiJoin = "(".equals(jt);
|
||||
boolean isForeignJoin = ")".equals(jt);
|
||||
boolean isWsEmpty = StringUtil.isEmpty(ws, true);
|
||||
|
||||
if (isWsEmpty) {
|
||||
if (isOuterJoin) { // ! OUTER JOIN: ! (A | B)
|
||||
throw new NotExistException("no result for ! OUTER JOIN( ! (A | B) ) when A or B is empty!");
|
||||
}
|
||||
if (isForeignJoin) { // ) FOREIGN JOIN: B & ! A
|
||||
throw new NotExistException("no result for ) FOREIGN JOIN( B & ! A ) when A is empty!");
|
||||
}
|
||||
}
|
||||
|
||||
if (StringUtil.isEmpty(js, true)) {
|
||||
if (isOuterJoin) { // ! OUTER JOIN: ! (A | B)
|
||||
throw new NotExistException("no result for ! OUTER JOIN( ! (A | B) ) when A or B is empty!");
|
||||
}
|
||||
if (isAntiJoin) { // ( ANTI JOIN: A & ! B
|
||||
throw new NotExistException("no result for ( ANTI JOIN( A & ! B ) when B is empty!");
|
||||
}
|
||||
|
||||
if (isWsEmpty) {
|
||||
if (isSideJoin) {
|
||||
throw new NotExistException("no result for ^ SIDE JOIN( ! (A & B) ) when both A and B are empty!");
|
||||
}
|
||||
}
|
||||
else {
|
||||
if (isSideJoin || isForeignJoin) {
|
||||
newWs += " ( " + getCondition(true, ws) + " ) ";
|
||||
|
||||
newPvl.addAll(pvl);
|
||||
newPvl.addAll(jc.getPreparedValueList());
|
||||
changed = true;
|
||||
}
|
||||
}
|
||||
|
||||
continue;
|
||||
}
|
||||
|
||||
if (StringUtil.isEmpty(newWs, true) == false) {
|
||||
newWs += AND;
|
||||
}
|
||||
|
||||
if (isAntiJoin) { // ( ANTI JOIN: A & ! B
|
||||
newWs += " ( " + ( isWsEmpty ? "" : ws + AND ) + NOT + " ( " + js + " ) " + " ) ";
|
||||
}
|
||||
else if (isForeignJoin) { // ) FOREIGN JOIN: (! A) & B // preparedValueList.add 不好反过来 B & ! A
|
||||
newWs += " ( " + NOT + " ( " + ws + " ) ) " + AND + " ( " + js + " ) ";
|
||||
}
|
||||
else if (isSideJoin) { // ^ SIDE JOIN: ! (A & B)
|
||||
//MySQL 因为 NULL 值处理问题，(A & ! B) | (B & ! A) 与 ! (A & B) 返回结果不一样，后者往往更多
|
||||
newWs += " ( " + getCondition(
|
||||
true,
|
||||
( isWsEmpty ? "" : ws + AND ) + " ( " + js + " ) "
|
||||
) + " ) ";
|
||||
}
|
||||
else { // & INNER JOIN: A & B; | FULL JOIN: A | B; OUTER JOIN: ! (A | B)
|
||||
logic = Logic.getType(jt);
|
||||
newWs += " ( "
|
||||
+ getCondition(
|
||||
Logic.isNot(logic),
|
||||
ws
|
||||
+ ( isWsEmpty ? "" : (Logic.isAnd(logic) ? AND : OR) )
|
||||
+ " ( " + js + " ) "
|
||||
)
|
||||
+ " ) ";
|
||||
}
|
||||
|
||||
newPvl.addAll(pvl);
|
||||
newPvl.addAll(jc.getPreparedValueList());
|
||||
|
||||
changed = true;
|
||||
break;
|
||||
default:
|
||||
throw new UnsupportedOperationException(
|
||||
"join:value 中 value 里的 " + jt + "/" + j.getPath()
|
||||
+ "错误！不支持 " + jt + " 等 [ @ APP, < LEFT, > RIGHT, * CROSS"
|
||||
+ ", & INNER, | FULL, ! OUTER, ^ SIDE, ( ANTI, ) FOREIGN ] 之外的 JOIN 类型 !"
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
if (changed) {
|
||||
whereString = newWs;
|
||||
preparedValueList = newPvl;
|
||||
}
|
||||
}
|
||||
|
||||
String s = StringUtil.isEmpty(whereString, true) ? "" : (hasPrefix ? " WHERE " : "") + whereString;
|
||||
|
||||
if (s.isEmpty() && RequestMethod.isQueryMethod(method) == false) {
|
||||
throw new UnsupportedOperationException("写操作请求必须带条件！！！");
|
||||
}
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
/**
|
||||
* @param key
|
||||
|
||||
Loading…
Reference in New Issue
Block a user