# Qore Programming Language Reference Manual: lib/QC_HashListIterator.dox.h Source File

QC_HashListIterator.dox.h
namespace Qore {
class HashListIterator : public AbstractQuantifiedBidirectionalIterator {
public:
constructor(hash h);
public:
constructor();
public:
copy();
public:
bool empty();
public:
bool first();
public:
auto getKeyValue(string key);
public:
hash getRow();
public:
hash getValue();
public:
int index();
public:
bool last();
public:
int max();
public:
auto memberGate(string key);
public:
bool next();
public:
bool prev();
public:
reset();
public:
bool set(int pos);
public:
bool valid();
};
};
Qore::HashListIterator::max
int max()
returns the number of elements in the list
Qore::HashListIterator::last
bool last()
returns True if on the last element of the list
Qore::HashListIterator::getKeyValue
auto getKeyValue(string key)
Returns the current value for the column given as an argument.
Qore::HashListIterator::next
bool next()
Moves the current position to the next element in the result list; returns False if there are no more...
Qore::HashListIterator::prev
bool prev()
Moves the current position to the previous element in the result list; returns False if there are no ...
Qore::HashListIterator::empty
bool empty()
returns True if the result list is empty; False if not
Qore::HashListIterator::memberGate
auto memberGate(string key)
This method allows the iterator to be dereferenced directly as a hash for the current row being itera...
Qore::HashListIterator::getValue
hash getValue()
returns the current row value as a hash or throws an INVALID-ITERATOR exception if the iterator is in...
Qore::AbstractQuantifiedBidirectionalIterator
This class defines an abstract interface for bidirectional iterators where the size of the object is ...
Definition: QC_AbstractQuantifiedBidirectionalIterator.dox.h:6
Qore::HashListIterator::index
int index()
returns the current iterator position in the list or -1 if not pointing at a valid element ...
Qore::HashListIterator
This class an iterator class for hashes of lists as returned by Qore::SQL::Datasource::select() and Q...
Definition: QC_HashListIterator.dox.h:38
Qore::HashListIterator::getRow
hash getRow()
returns the current row value as a hash or throws an INVALID-ITERATOR exception if the iterator is in...
Qore::HashListIterator::first
bool first()
returns True if on the first element of the list
Qore::HashListIterator::valid
bool valid()
returns True if the iterator is currently pointing at a valid element, False if not ...
Qore::HashListIterator::reset
reset()
Reset the iterator instance to its initial state.
Qore
main Qore-language namespace
Definition: Pseudo_QC_All.dox.h:2
Qore::hash
hash hash(object obj)
Returns a hash of an object&#39;s members.
Qore::HashListIterator::copy
copy()
Creates a copy of the HashListIterator object, iterating the same object as the original and in the s...
Qore::HashListIterator::constructor
constructor()
Creates an empty hash list iterator object.