[#CDBIterator]
= CDBIterator
:mrdocs:

Iterates over the key‐value entries of a CDBWrapper.

== Synopsis

Declared in `<dbwrapper.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
class CDBIterator;
----

== Types

[cols="1,4"]
|===
| Name| Description
| xref:CDBIterator/IteratorImpl.adoc[`IteratorImpl`] 
| Opaque holder for the underlying LevelDB iterator.
|===


== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:CDBIterator/2constructor.adoc[`CDBIterator`]         [.small]#[constructor]#
| Constructs an iterator over the given wrapper.
| xref:CDBIterator/2destructor.adoc[`~CDBIterator`] [.small]#[destructor]#
| Destroys the iterator and releases the underlying LevelDB iterator.
| xref:CDBIterator/GetKey.adoc[`GetKey`] 
| Reads the key at the current position.
| xref:CDBIterator/GetValue.adoc[`GetValue`] 
| Reads and de‐obfuscates the value at the current position.
| xref:CDBIterator/Next.adoc[`Next`] 
| Advances the iterator to the next entry.
| xref:CDBIterator/Seek.adoc[`Seek`] 
| Positions the iterator at the first entry with a key at or after the given key.
| xref:CDBIterator/SeekToFirst.adoc[`SeekToFirst`] 
| Positions the iterator at the first entry in the database.
| xref:CDBIterator/Valid.adoc[`Valid`] 
| Returns true if the iterator is positioned at a valid entry.
|===


== Non-Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:index_util/CopyHeightIndexToHashIndex.adoc[`index_util::CopyHeightIndexToHashIndex`]
| Copy an index entry from the height index to the hash index.
|===


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