public static List<BooleanExpression> readBooleanExpressionList(ObjectInput in) throws IOException, ClassNotFoundException {
int size = in.readInt();
List<BooleanExpression> list = new ArrayList<BooleanExpression>(size);
for ( int i = 0; i < size; i++ ) {
BooleanExpression item = new BooleanExpression();
item.readExternal( in );
list.add( item );
}
return list;
}