QNetworkCacheMetaData Class

成员函数

QNetworkCacheMetaData::QNetworkCacheMetaData()

Constructs an invalid network cache meta data.

参见 isValid().

QNetworkCacheMetaData::QNetworkCacheMetaData(const QNetworkCacheMetaData &other)

Constructs a copy of the other QNetworkCacheMetaData.

QNetworkCacheMetaData::~QNetworkCacheMetaData()

Destroys the network cache meta data.

AttributesMap QNetworkCacheMetaData::attributes() const

Returns all the attributes stored with this cache item.

This function was introduced in Qt 4.6.

参见 setAttributes() and QNetworkRequest::Attribute.

QDateTime QNetworkCacheMetaData::expirationDate() const

Returns the date and time when the meta data expires.

参见 setExpirationDate().

bool QNetworkCacheMetaData::isValid() const

Returns true if this network cache meta data has attributes that have been set otherwise false.

QDateTime QNetworkCacheMetaData::lastModified() const

Returns the date and time when the meta data was last modified.

参见 setLastModified().

RawHeaderList QNetworkCacheMetaData::rawHeaders() const

Returns a list of all raw headers that are set in this meta data. The list is in the same order that the headers were set.

参见 setRawHeaders().

bool QNetworkCacheMetaData::saveToDisk() const

Returns is this cache should be allowed to be stored on disk.

Some cache implementations can keep these cache items in memory for performance reasons, but for security reasons they should not be written to disk.

Specifically with http, documents marked with Pragma: no-cache, or have a Cache-control set to no-store or no-cache or any https document that doesn't have "Cache-control: public" set will set the saveToDisk to false.

参见 setSaveToDisk().

void QNetworkCacheMetaData::setAttributes(const AttributesMap &attributes)

Sets all attributes of this cache item to be the map attributes.

This function was introduced in Qt 4.6.

参见 attributes() and QNetworkRequest::setAttribute().

void QNetworkCacheMetaData::setExpirationDate(const QDateTime &dateTime)

Sets the date and time when the meta data expires to dateTime.

参见 expirationDate().

void QNetworkCacheMetaData::setLastModified(const QDateTime &dateTime)

Sets the date and time when the meta data was last modified to dateTime.

参见 lastModified().

void QNetworkCacheMetaData::setRawHeaders(const RawHeaderList &list)

Sets the raw headers to list.

参见 rawHeaders().

void QNetworkCacheMetaData::setSaveToDisk(bool allow)

Sets whether this network cache meta data and associated content should be allowed to be stored on disk to allow.

参见 saveToDisk().

void QNetworkCacheMetaData::setUrl(const QUrl &url)

Sets the URL this network cache meta data to be url.

The password and fragment are removed from the url.

参见 url().

void QNetworkCacheMetaData::swap(QNetworkCacheMetaData &other)

Swaps this metadata instance with other. This function is very fast and never fails.

This function was introduced in Qt 5.0.

QUrl QNetworkCacheMetaData::url() const

Returns the URL this network cache meta data is referring to.

参见 setUrl().

bool QNetworkCacheMetaData::operator!=(const QNetworkCacheMetaData &other) const

Returns true if this meta data is not equal to the other meta data; otherwise returns false.

参见 operator==().

QNetworkCacheMetaData &QNetworkCacheMetaData::operator=(QNetworkCacheMetaData &&other)

Move-assignment operator.

QNetworkCacheMetaData &QNetworkCacheMetaData::operator=(const QNetworkCacheMetaData &other)

Makes a copy of the other QNetworkCacheMetaData and returns a reference to the copy.

bool QNetworkCacheMetaData::operator==(const QNetworkCacheMetaData &other) const

Returns true if this meta data is equal to the other meta data; otherwise returns false.

参见 operator!=().