#include <DbXml.hpp>
void XmlIndexSpecification::addDefaultIndex(const std::string &index)
void XmlIndexSpecification::addDefaultIndex(Type type,
XmlValue::Type syntax)
Adds an indexing strategy to the default index specification. That is, the index provided on this method is applied to all nodes in a container, except for those for which an explicit index is already declared. For more information on specifying indexing strategies, see XmlIndexSpecification::addIndex.
You can specify an index by using a string, or by using enumerated values.
#include <DbXml.hpp> void XmlIndexSpecification::addDefaultIndex(const std::string &index)
Identifies one or more indexing strategies to the default index.
Parameters are:
A comma-separated list of strings that represent the indexing strategy. The strings must contain the following information in the following order:
unique-{path type}-{node type}-{key type}-{syntax}where:
unique indicates that the indexed value is unique in the container. If this keyword does not appear on the index string, then the indexed value is not required to be unique in the container.
{path type} is either node or edge.
{node type} is one of element,
attribute, or
metadata. If
metadata is specified, then
{path type} must be node.
{key type} is one of presence, equality, or
substring.
{syntax} identifies the type of information being indexed. It must be one of the following values:
| none | double | gYear |
| base64Binary | duration | gYearMonth |
| boolean | float | hexBinary |
| date | gDay | string |
| dateTime | gMonth | time |
| decimal | gMonthDay |
Note that if {key type} is presence, then {syntax} must be
none or simply not specified.
Some example index strings are:
unique-node-element-presence
node-element-equality-string
edge-element-presence-none
node-element-equality-float #include <DbXml.hpp>
void XmlIndexSpecification::addDefaultIndex(Type type,
XmlValue::Type syntax)
Adds a single indexing strategy to the default index.
Parameters are:
A series of XmlIndexSpecification::Type values bitwise
OR'd together to form the index strategy.
To indicate whether the indexed value must be unique container-wide, use one of the following, or leave the value out entirely:
XmlIndexSpecification::UNIQUE_OFF
XmlIndexSpecification::UNIQUE_ON
To identify the path type, use one of the following:
XmlIndexSpecification::PATH_NODE
XmlIndexSpecification::PATH_EDGE
To identify the node type, use one of the following:
XmlIndexSpecification::NODE_ELEMENT
XmlIndexSpecification::NODE_ATTRIBUTE
XmlIndexSpecification::NODE_METADATA
Note that if
XmlIndexSpecification::NODE_METADATA is
used, then
XmlIndexSpecification::PATH_NODE must
also be used as well.
To identify the key type, use one of the following:
XmlIndexSpecification::KEY_PRESENCE
XmlIndexSpecification::KEY_EQUALITY
XmlIndexSpecification::KEY_SUBSTRING
For example:
XmlIndexSpecification::PATH_NODE | XmlIndexSpecification::NODE_ELEMENT | XmlIndexSpecification::KEY_SUBSTRING
Identifies the type of information being indexed. The value must be one of the XmlValue enumerated types:
XmlValue::NONE
XmlValue::BASE_64_BINARY
XmlValue::BOOLEAN
XmlValue::DATE
XmlValue::DATE_TIME
XmlValue::DECIMAL
XmlValue::DOUBLE
XmlValue::DURATION
XmlValue::FLOAT
XmlValue::G_DAY
XmlValue::G_MONTH
XmlValue::G_MONTH_DAY
XmlValue::G_YEAR
XmlValue::G_YEAR_MONTH
XmlValue::HEX_BINARY
XmlValue::STRING
XmlValue::TIME
Note that if XmlIndexSpecification::KEY_PRESENCE is
specified for the type parameter, then this parameter must be
XmlValue::NONE.
The XmlIndexSpecification::addDefaultIndex method
may fail and throw
XmlException
, encapsulating one of the
following non-zero errors: