Since the SQL support is limited, this path should be taken with caution. You can also use the following GConnection method to set the user and password for a secured space:. The space maintains additional data for indexed attributes, which shortens the time required to determine a match resulting in improved performance. In this case you avoid remote calls when interacting with the space since the data load done from within the space. This approach reduces network overhead and can vastly improve performance.
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Only properties with special roles like ID and Routing are part of the schema definition. A query processor transparently translates SQL queries into legal space operations. The space maintains iggaspaces data for indexed attributes, which shortens the time required to determine a match resulting in improved performance. Welcome to the new Gigaspaces XAP forum.
JDBC Query on subspace space – Gigaspaces XAP forum
With the following change operation example it is not necessary to read the object first from the space to update it. For your reference, the original is [available here http: When writing an object to the space, the object is created in space if it does not exist.
The POJO needs to implement a default constructor, setters and getters for every property you want to store in the Space. The table name is case sensitive. Other parameters are optional. This page describes an older version of the product.
Attributes with null values are ignored not matched. When running partitioned space, data is partitioned based on the routing field hash code gigasppaces into the relevant space.
The SpaceDocument object is instantiated by using the type name and properties. With this parameter, all joins are executed on the client side. GigaSpaces persistent space includes several options: Please start posting anonymously – your entry will be published after you log in or create a new account.
It is also possible to write multiple objects in gigaaspaces operation to the space batch mode.
Future versions will resolve this inconsistency. Hello Gigasppaces, Here is my story: The logging granularity can be set using the JDBC url parameter. Porting existing JDBC code to the space is certainly doable but would require some level of adaptation depending on the specifics of the case and the complexity of the SQL queries.
Interacting with the Space
If you need to change the index type of an attribute in a subclass you can override the attribute and annotate it with SpaceIndex using the requested index type to disable indexing use NONE.
We are gradually enhancing the support within the Space to support more SQL commands. All the calculations are performed on the server side. When querying the Space class, the class package is stripped and only the class name is used.
A document, which is represented by the class SpaceDocument, is essentially a collection of key-value pairs, where the keys are strings and the values are primitives, String, Date, other documents, or collections thereof. All Basic SQL statements: The list of supported SQL features is provided below: In such a case your vigaspaces defined class used as the SpaceId data type must implement the toStringhashCode and equals methods.
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