XAP

Class Metadata

Name
Syntax name
Description Contains the full qualified name of the specified class. Because this attribute is of the XML type ID, there can only be one class-descriptor per class.

Example:

<gigaspaces-mapping>
    <class name="Model.Person">
    </class>
</gigaspaces-mapping>

Alias name
Syntax alias-name
Argument boolean
Description Gives the ability to map a C# class name (including namespace) to a space class name

Example:

<gigaspaces-mapping>
    <class name="Model.Person" alias-name="CommonPerson">
    </class>
</gigaspaces-mapping>

Persistence
Syntax persist
Argument boolean
Default false
Description This field indicates the persistency mode of the object. When a space is defined as persistent, a true value for this attribute will persist objects of this type.

Example:

<gigaspaces-mapping>
    <class name="Model.Person" persist="true">
    </class>
</gigaspaces-mapping>

Space Persistence

Replication
Syntax replicate
Argument boolean
Default false
Description This field indicates the replication mode of the object. When a space is defined as replicated, a true value for this attribute will replicate objects of this type.

Example:

<gigaspaces-mapping>
    <class name="Model.Person" replicate="true">
    </class>
</gigaspaces-mapping>

Replication

FIFO Support
Syntax fifo
Argument FifoSupport
Default off
Description Enabling FIFOClosed FIFO is an acronym for first in, first out, a method for organizing the manipulation of a data structure where the oldest entry, or "head" of the queue, is processed first. operations.

Example:

<gigaspaces-mapping>
    <class name="Model.Person" fifo="operation">
    </class>
</gigaspaces-mapping>

Space Persistence

Storage Type
Syntax storage-type
Argument StorageType
Default object
Description To determine a default storage type for each non primitive property for which a (field level) storage type was not defined.

Example:

<gigaspaces-mapping>
    <class name="Model.Person" storage-type="binary" />
</gigaspaces-mapping>

Space Object storage types

Inherit Index
Syntax inherit-indexes
Argument boolean
Default true
Description Whether to use the class indexes list only, or to also include the superclass' indexes.
If the class does not define indexes, superclass indexes are used.
Options:
- false – class indexes only.
- true – class indexes and superclass indexes.

Example:

<gigaspaces-mapping>
    <class name="Model.Person" inherit-indexes="false" />
</gigaspaces-mapping>

Indexing Objects

Compound Index
Syntax compound-index paths
Argument(s) string
Values attribute name(s)
Description Indexes can be defined for multiple properties of a class

Example:

<gigaspaces-mapping>
    <class name="Data" >
        <compound-index paths="Data1, Data2"/>
        ...
    </class>
</gigaspaces-mapping>

Compound Indexing