/** 如果是1 = id的情况，转化为id = 1 */
private static IFilter exchage(IFilter root) {
IBooleanFilter bf = (IBooleanFilter) root;
if (!FilterUtils.isConstValue(bf.getValue()) && FilterUtils.isConstValue(bf.getColumn())) {
Object val = bf.getColumn();
bf.setColumn(bf.getValue());
bf.setValue(val);
OPERATION newOp = bf.getOperation();
switch (bf.getOperation()) {
case GT:
newOp = OPERATION.LT;
break;
case LT:
newOp = OPERATION.GT;
break;
case GT_EQ:
newOp = OPERATION.LT_EQ;
break;
case LT_EQ:
newOp = OPERATION.GT_EQ;
break;
default:
break;
}
bf.setOperation(newOp);
}
return bf;
}
private static void findBooleanFilter(IBooleanFilter filter, Parameters parameters) {
if (filter == null) {
return;
}
findObject(filter.getColumn(), parameters);
findObject(filter.getValue(), parameters);
if (filter.getOperation() == OPERATION.IN) {
List<Object> values = filter.getValues();
if (values != null && !values.isEmpty()) {
for (int i = 0; i < values.size(); i++) {
findObject(values.get(i), parameters);
}
}
}
}
/**
* 构造Range对象
*
* @param f
* @return
*/
protected Range getRange(IBooleanFilter f) {
DataType type = getColumn(f).getDataType();
if (type == null) {
type = DataTypeUtil.getTypeOfObject(f.getValue());
}
switch (f.getOperation()) {
case EQ:
return new Range(null, type, getValue(f), getValue(f));
case GT:
return new Range(null, type, getValue(f), false, null, true);
case GT_EQ:
return new Range(null, type, getValue(f), true, null, true);
case LT:
return new Range(null, type, null, true, getValue(f), false);
case LT_EQ:
return new Range(null, type, null, true, getValue(f), true);
default:
return null;
}
}
