private Sql makeSQL(T t, String[] fields, Object[] values) throws SqlCreateException {
Sql sql = new Sql();
Class<?> clazz = t.getClass();
String table = ORMConfigBeanUtil.getTable(clazz, false);
ReflectUtil ru = new ReflectUtil(t);
String[] columns = ORMConfigBeanUtil.getColumns(clazz, fields);
String idColumn = ORMConfigBeanUtil.getIdColumn(clazz);
String idField = ORMConfigBeanUtil.getIdField(clazz);
Method idGetter = ru.getGetter(idField);
if (idGetter == null) throw new SqlCreateException("can not find id getter.");
Object idValue = null;
try {
idValue = idGetter.invoke(t);
} catch (Exception e) {
throw new SqlCreateException(idGetter + " invoke exception " + e.toString(), e);
}
StringBuilder sb = new StringBuilder();
for (int i = 0; i < columns.length; ++i) {
String column = columns[i];
if (sb.length() > 0) sb.append(", ");
// sb.append(column).append(" = '").append(values[i]).append("'");
sb.append(column).append(" = ?");
sql.args.add(values[i]);
}
// String condition = new StringBuilder().append(idColumn).append(" =
// ").append("'").append(idValue).append("'").toString();
String condition = new StringBuilder().append(idColumn).append(" = ? ").toString();
sql.args.add(idValue);
sql.sql = String.format("UPDATE %s SET %s WHERE %s ;", table, sb.toString(), condition);
return sql;
}
private String makeSQL(T t, String[] fields, String[] values) throws SqlCreateException {
Class<?> clazz = t.getClass();
String table = ORMConfigBeanUtil.getTable(clazz);
ReflectUtil ru = new ReflectUtil(t);
String[] columns = ORMConfigBeanUtil.getColumns(clazz, fields);
String idColumn = ORMConfigBeanUtil.getIdColumn(clazz);
String idField = ORMConfigBeanUtil.getIdField(clazz);
Method idGetter = ru.getGetter(idField);
if (idGetter == null) throw new SqlCreateException("can not find id getter.");
StringBuilder condition = new StringBuilder();
try {
condition.append(idColumn).append(" = '").append(idGetter.invoke(t)).append("'");
} catch (Exception e) {
throw new SqlCreateException(idGetter + " invoke exception " + e.toString());
}
StringBuilder sb = new StringBuilder();
for (int i = 0; i < columns.length; ++i) {
String column = columns[i];
if (sb.length() > 0) sb.append(", ");
sb.append(column).append(" = '");
sb.append(values[i]).append("'");
}
return String.format("UPDATE %s SET %s WHERE %s ;", table, sb.toString(), condition);
}
public void init(Object t, List<Field> fields) throws DAOException {
this.t = t;
this.fields = fields;
this.ru = new ReflectUtil(this.t);
this.table = ORMConfigBeanUtil.getTable(this.t.getClass(), true);
// 主类的ID属性名
this.idField = ORMConfigBeanUtil.getIdField(this.t.getClass());
this.idSetter = ru.getSetter(idField);
if (this.idSetter == null) throw new DAOException("can not get idSetter.", null);
this.idGetter = ru.getGetter(idField);
if (this.idGetter == null) throw new DAOException("can not get idGetter.", null);
this.idColumn = ORMConfigBeanUtil.getIdColumn(this.t.getClass());
try {
Object _idVal = idGetter.invoke(this.t);
this.idVal = _idVal == null ? null : String.valueOf(_idVal);
} catch (Exception e) {
throw new DAOException(idGetter + " invoke exception ", e);
}
}
/**
* 多对多级联查询 1.当主对象没有包含任何一个关联对象时，默认查询所有与之关联的对象 2.当主对象中包含了关联对象时（含有其id值），则只查询这些关联的对象
*
* @param <T>
* @throws InvocationTargetException
* @throws IllegalAccessException
* @throws IllegalArgumentException
*/
public void select() throws DAOException {
if (this.fields == null || this.fields.size() == 0) return;
// select %s from {tarTable} where {referencedColumn} in (select {to} from {relTable} where
// {from} = {idVal})
String format = "SELECT %s FROM %s WHERE %s IN (SELECT %s FROM %s WHERE %s = ?) ";
if (idVal == null || "0".equals(idVal) || "".equals(idVal)) return;
for (Field f : fields) {
Method tarGetter = ru.getGetter(f.getName());
if (tarGetter == null) continue;
ManyToMany ann = tarGetter.getAnnotation(ManyToMany.class);
if (ann == null) {
ann = f.getAnnotation(ManyToMany.class);
if (ann == null) continue;
}
JoinTable join = tarGetter.getAnnotation(JoinTable.class);
if (join == null) {
join = f.getAnnotation(JoinTable.class);
if (join == null) continue;
}
JoinColumn[] froms = join.joinColumns();
if (froms == null || froms.length == 0) continue;
JoinColumn[] tos = join.inverseJoinColumns();
if (tos == null || tos.length == 0) continue;
// 多对多关系目标Class
Class<?> tarClass = ann.targetEntity();
if (void.class.isAssignableFrom(tarClass)) {
tarClass = ClassUtil.getGenericType(f);
}
String tarTable = ORMConfigBeanUtil.getTable(tarClass, true);
// 目标类对应的数据库表Id字段
String referencedColumn = tos[0].referencedColumnName();
if (referencedColumn == null || referencedColumn.trim().length() == 0)
referencedColumn = ORMConfigBeanUtil.getIdColumn(tarClass);
// 目标类在第三方关系表中的字段名
String to = tos[0].name();
// 第三方关系表
String relTable = join.name();
// 主类在第三方关系表中的字段名
String from = froms[0].name();
try {
List<?> tarList = null;
tarList = (List<?>) tarGetter.invoke(t);
if (tarList != null && tarList.size() > 0) {
for (int i = 0; i < tarList.size(); i++) {
Object tarObj = tarList.get(i);
ReflectUtil tarRu = new ReflectUtil(tarObj);
String tarIdField = ORMConfigBeanUtil.getIdField(tarClass);
Method tarIdGetter = tarRu.getGetter(tarIdField);
Object tarIdValObj = tarIdGetter.invoke(tarObj);
if (tarIdValObj == null) continue;
String tarIdVal = String.valueOf(tarIdValObj);
// 查询 select %s from {tarTable} where {tarIdColumn} = {tarIdVal}
tarObj =
DAOFactory.getSelectDAO(dsName)
.selectOne(tarClass, new String[] {tarIdField}, new String[] {tarIdVal});
}
} else {
String sql =
String.format(
format,
ORMConfigBeanUtil.getSelectAllColumn(tarClass),
tarTable,
referencedColumn,
to,
relTable,
from);
// 从数据库中取出与当前主对象id关联的所有目标对象，
tarList = DAOFactory.getSelectDAO(dsName).selectBySQL(tarClass, sql, idVal);
}
// 并注入到当前主对象的属性中
Method tarSetter = ru.getSetter(f.getName());
tarSetter.invoke(t, tarList);
} catch (Exception e) {
e.printStackTrace();
throw new DAOException("", e);
}
}
}
private Sql makeSQL(T t) throws SqlCreateException {
Sql sql = new Sql();
Class<?> clazz = t.getClass();
String table;
String[] columns;
String[] fields;
Object[] values = null;
String idColumn;
String idField;
Object idValue = null;
HashMap<String, Object> map = null;
if (Map.class.isAssignableFrom(clazz)) {
map = (HashMap) t;
table = (String) map.get("table");
idColumn = (String) map.get("idColumn");
idField = idColumn;
idValue = map.get("idValue");
columns = (String[]) map.get("columns");
fields = columns;
values = (Object[]) map.get("values");
} else {
table = ORMConfigBeanUtil.getTable(clazz, false);
columns = ORMConfigBeanUtil.getColumns(clazz);
fields = ORMConfigBeanUtil.getFields(clazz);
idColumn = ORMConfigBeanUtil.getIdColumn(clazz);
idField = ORMConfigBeanUtil.getIdField(clazz);
}
StringBuilder valuesSb = new StringBuilder();
ReflectUtil ru = new ReflectUtil(t);
try {
if (map == null) {
Method idGetter = ru.getGetter(idField);
if (idGetter == null) throw new SqlCreateException("can not find id getter");
idValue = idGetter.invoke(t);
}
for (int i = 0; i < columns.length; i++) {
String column = columns[i];
String field = fields[i];
Object value = null;
// id 字段不允许
if (idColumn != null && idColumn.equalsIgnoreCase(column)) continue;
if (map != null && values != null) {
value = values[i];
} else {
Method getter = ru.getGetter(field);
if (getter == null) continue;
Object _value = getter.invoke(t);
if (_value == null) continue;
if (ClassUtil.isPojo(_value.getClass())) {
Field f = ru.getField(field);
OneToOne oneAnn = getter.getAnnotation(OneToOne.class);
if (oneAnn == null) oneAnn = f.getAnnotation(OneToOne.class);
ManyToOne manyToOneAnn = null;
if (oneAnn == null) {
manyToOneAnn = getter.getAnnotation(ManyToOne.class);
if (manyToOneAnn == null) manyToOneAnn = f.getAnnotation(ManyToOne.class);
}
if (oneAnn != null || manyToOneAnn != null) {
JoinColumn joinColAnn = getter.getAnnotation(JoinColumn.class);
if (joinColAnn == null) joinColAnn = f.getAnnotation(JoinColumn.class);
if (joinColAnn != null && joinColAnn.referencedColumnName().trim().length() > 0) {
String refCol = joinColAnn.referencedColumnName();
String refField = ORMConfigBeanUtil.getField(_value.getClass(), refCol);
ReflectUtil tarRu = new ReflectUtil(_value);
Method tarFKGetter = tarRu.getGetter(refField);
value = tarFKGetter.invoke(_value);
} else {
ReflectUtil tarRu = new ReflectUtil(_value);
String tarFKField = ORMConfigBeanUtil.getIdField(_value.getClass());
if (tarFKField != null) {
Method tarFKGetter = tarRu.getGetter(tarFKField);
value = tarFKGetter.invoke(_value);
}
}
}
if (value == null) continue;
} else value = _value;
}
if (valuesSb.length() > 0) valuesSb.append(",");
// valuesSb.append(column).append(" = '").append(value).append("'");
valuesSb.append(column).append(" = ? ");
sql.args.add(value);
}
} catch (Exception e) {
throw new SqlCreateException("" + e.toString(), e);
}
// String condition = new StringBuilder().append(idColumn).append(" =
// ").append("'").append(idValue).append("'").toString();
String condition = new StringBuilder().append(idColumn).append(" = ? ").toString();
sql.args.add(idValue);
sql.sql = String.format("UPDATE %s SET %s WHERE %s ;", table, valuesSb, condition);
return sql;
}
private Sql makeSQL(T t, String[] fields) throws SqlCreateException {
Sql sql = new Sql();
Class<?> clazz = t.getClass();
// if fields is empty
if (fields == null || fields.length == 0) {
fields = ORMConfigBeanUtil.getFields(clazz);
}
String table = ORMConfigBeanUtil.getTable(clazz, false);
StringBuilder values = new StringBuilder();
ReflectUtil ru = new ReflectUtil(t);
String[] columns = ORMConfigBeanUtil.getColumns(clazz, fields);
String idColumn = ORMConfigBeanUtil.getIdColumn(clazz);
String idField = ORMConfigBeanUtil.getIdField(clazz);
Method idGetter = ru.getGetter(idField);
if (idGetter == null) throw new SqlCreateException("can not find id getter.");
Object idValue = null;
try {
idValue = idGetter.invoke(t);
} catch (Exception e) {
throw new SqlCreateException(idGetter + " invoke exception " + e.toString(), e);
}
for (int i = 0; i < fields.length; i++) {
String field = fields[i];
String column = columns[i];
Method getter = ru.getGetter(field);
if (getter == null) continue;
try {
Object _value = getter.invoke(t);
if (_value == null) continue;
Object value = null;
if (ClassUtil.isPojo(_value.getClass())) {
Field f = ru.getField(field);
OneToOne oneAnn = getter.getAnnotation(OneToOne.class);
if (oneAnn == null) oneAnn = f.getAnnotation(OneToOne.class);
ManyToOne manyToOneAnn = null;
if (oneAnn == null) {
manyToOneAnn = getter.getAnnotation(ManyToOne.class);
if (manyToOneAnn == null) manyToOneAnn = f.getAnnotation(ManyToOne.class);
}
if (oneAnn != null || manyToOneAnn != null) {
JoinColumn joinColAnn = getter.getAnnotation(JoinColumn.class);
if (joinColAnn == null) joinColAnn = f.getAnnotation(JoinColumn.class);
if (joinColAnn != null && joinColAnn.referencedColumnName().trim().length() > 0) {
String refCol = joinColAnn.referencedColumnName();
String refField = ORMConfigBeanUtil.getField(_value.getClass(), refCol);
ReflectUtil tarRu = new ReflectUtil(_value);
Method tarFKGetter = tarRu.getGetter(refField);
value = tarFKGetter.invoke(_value);
} else {
ReflectUtil tarRu = new ReflectUtil(_value);
String tarFKField = ORMConfigBeanUtil.getIdField(_value.getClass());
if (tarFKField != null) {
Method tarFKGetter = tarRu.getGetter(tarFKField);
value = tarFKGetter.invoke(_value);
}
}
}
if (value == null) continue;
} else {
value = _value;
}
if (values.length() > 0) values.append(", ");
// values.append(column).append(" = '").append(value).append("'");
values.append(column).append(" = ? ");
sql.args.add(value);
} catch (Exception e) {
throw new SqlCreateException(idGetter + " invoke exception " + e.toString(), e);
}
}
// String condition = new StringBuilder().append(idColumn).append(" =
// ").append("'").append(idValue).append("'").toString();
String condition = new StringBuilder().append(idColumn).append(" = ? ").toString();
sql.args.add(idValue);
sql.sql = String.format("UPDATE %s SET %s WHERE %s ;", table, values, condition);
return sql;
}
private String makeSQL(T t, String[] fields) throws SqlCreateException {
Class<?> clazz = t.getClass();
String table = ORMConfigBeanUtil.getTable(clazz);
StringBuilder condition = new StringBuilder();
StringBuilder values = new StringBuilder();
ReflectUtil ru = new ReflectUtil(t);
String[] columns = ORMConfigBeanUtil.getColumns(clazz, fields);
String idColumn = ORMConfigBeanUtil.getIdColumn(clazz);
String idField = ORMConfigBeanUtil.getIdField(clazz);
Method idGetter = ru.getGetter(idField);
if (idGetter == null) throw new SqlCreateException("can not find id getter.");
try {
condition.append(idColumn).append(" = '").append(idGetter.invoke(t)).append("'");
} catch (Exception e) {
throw new SqlCreateException(idGetter + " invoke exception " + e.toString());
}
for (int i = 0; i < fields.length; i++) {
String field = fields[i];
String column = columns[i];
Method getter = ru.getGetter(field);
if (getter == null) continue;
try {
Object _value = getter.invoke(t);
if (_value == null) continue;
Object value = null;
if (ClassUtil.isPojo(_value.getClass())) {
Field f = ru.getField(field);
OneToOne oneAnn = getter.getAnnotation(OneToOne.class);
if (oneAnn == null) oneAnn = f.getAnnotation(OneToOne.class);
ManyToOne manyToOneAnn = null;
if (oneAnn == null) {
manyToOneAnn = getter.getAnnotation(ManyToOne.class);
if (manyToOneAnn == null) manyToOneAnn = f.getAnnotation(ManyToOne.class);
}
if (oneAnn != null || manyToOneAnn != null) {
ReflectUtil tarRu = new ReflectUtil(_value);
String tarFKField = ORMConfigBeanUtil.getIdField(_value.getClass());
Method tarFKGetter = tarRu.getGetter(tarFKField);
value = tarFKGetter.invoke(_value);
}
}
if (value == null) value = _value;
if (values.length() > 0) values.append(", ");
values.append(column).append(" = '").append(value).append("'");
} catch (Exception e) {
throw new SqlCreateException(idGetter + " invoke exception " + e.toString());
}
}
return String.format("UPDATE %s SET %s WHERE %s ;", table, values, condition);
}
/** 多对一级联查询 1.获取当前idVal，然后作为条件查询出其外键值，接着通过其外键值查出主对象数据，注入到当前 */
public void select() {
if (this.fields == null || this.fields.size() == 0) return;
if (idVal == null || "0".equals(idVal) || "".equals(idVal)) {
return;
}
// else if (DAOFactory.getSelectDAO(dsName).selectOne(t, this.idField) == null) {
// // 检查一下当前对象的ID是否存在于数据库
// return;
// }
for (Field f : fields) {
Method tarGetter = ru.getGetter(f.getName());
if (tarGetter == null) continue;
String fk = null;
OneToOne ann = tarGetter.getAnnotation(OneToOne.class);
if (ann == null) ann = f.getAnnotation(OneToOne.class);
if (ann == null) {
ManyToOne moAn = tarGetter.getAnnotation(ManyToOne.class);
if (moAn == null) moAn = f.getAnnotation(ManyToOne.class);
if (moAn == null) continue;
}
String refCol = null;
JoinColumn joinCol = f.getAnnotation(JoinColumn.class);
if (joinCol == null) joinCol = tarGetter.getAnnotation(JoinColumn.class);
if (joinCol == null) fk = f.getName() + "_id";
else {
fk = joinCol.name();
refCol = joinCol.referencedColumnName();
}
Class<?> tarClass = f.getType();
if (refCol == null || refCol.trim().length() == 0)
refCol = ORMConfigBeanUtil.getIdColumn(tarClass);
String refField = ORMConfigBeanUtil.getField(tarClass, refCol);
try {
Object _tarObj = tarGetter.invoke(t);
Object tarObj = null;
boolean flag = false;
if (_tarObj != null) {
Method refFieldGetter = new ReflectUtil(_tarObj).getGetter(refField);
if (refFieldGetter != null && refFieldGetter.invoke(_tarObj) != null)
tarObj = DAOFactory.getSelectDAO(dsName).selectOne(_tarObj, refField);
else flag = true;
} else flag = true;
if (flag) {
// select * from {tarTable} where {referencedColumn} = (select {fk} from {table} where
// {idColumn} = {idVal})
String format = "select %s from %s where %s = (select %s from %s where %s = %s )";
String tarTable = ORMConfigBeanUtil.getTable(tarClass, true);
String sql =
String.format(
format,
ORMConfigBeanUtil.getSelectAllColumn(tarClass),
tarTable,
refCol,
fk,
table,
idColumn,
idVal);
List<?> tarList = DAOFactory.getSelectDAO(dsName).selectBySQL(tarClass, sql);
if (tarList == null || tarList.size() == 0) continue;
tarObj = tarList.get(0);
}
if (tarObj == null) continue;
Method tarSetter = ru.getSetter(f.getName());
tarSetter.invoke(t, tarObj);
} catch (Exception e) {
throw new DAOException("", e);
}
}
}