/**
* public void bdbReadXxxKeyFields(EntityInput input, int startField, int endField, int
* superLevel) { // ... if (superLevel <= 0) { switch (startField) { case 0: keyField1 =
* input.readInt(); if (endField == 0) break; case 1: keyField2 = (String) input.readObject(); if
* (endField == 1) break; case 2: keyField3 = input.readInt(); } }
*/
private void genReadFieldSwitch(MethodVisitor mv, List<FieldInfo> fields) {
int nFields = fields.size();
if (nFields > 0) {
mv.visitVarInsn(ILOAD, 4);
Label pastSwitch = new Label();
mv.visitJumpInsn(IFGT, pastSwitch);
Label[] labels = new Label[nFields];
for (int i = 0; i < nFields; i += 1) {
labels[i] = new Label();
}
mv.visitVarInsn(ILOAD, 2);
mv.visitTableSwitchInsn(0, nFields - 1, pastSwitch, labels);
for (int i = 0; i < nFields; i += 1) {
FieldInfo field = fields.get(i);
mv.visitLabel(labels[i]);
genReadField(mv, field);
if (i < nFields - 1) {
Label nextCase = labels[i + 1];
mv.visitVarInsn(ILOAD, 3);
if (i == 0) {
mv.visitJumpInsn(IFNE, nextCase);
} else {
switch (i) {
case 1:
mv.visitInsn(ICONST_1);
break;
case 2:
mv.visitInsn(ICONST_2);
break;
case 3:
mv.visitInsn(ICONST_3);
break;
case 4:
mv.visitInsn(ICONST_4);
break;
case 5:
mv.visitInsn(ICONST_5);
break;
default:
mv.visitIntInsn(BIPUSH, i);
}
mv.visitJumpInsn(IF_ICMPNE, nextCase);
}
mv.visitJumpInsn(GOTO, pastSwitch);
}
}
mv.visitLabel(pastSwitch);
}
}
