private CamlLogicalJoin(CamlLogicalJoinType logicalJoinType)
: this(logicalJoinType, new CamlStatement[] {})
{
}
private CamlLogicalJoin(CamlLogicalJoinType logicalJoinType, IEnumerable <CamlStatement> statements)
{
LogicalJoinType = logicalJoinType;
this.statements = statements.ToList();
}