---
title:  Data Entries
---

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The data entry is the key/value pair where you store your data. You can manage your entries individually and in batches. To use domain objects for your entry values and keys, you need to follow <%=vars.product_name_long%> requirements for data storage and distribution.

-   **[Managing Data Entries](managing_data_entries.html)**

    Program your applications to create, modify, and manage your cached data entries.

-   **[Copy on Read Behavior](copy_on_read.html)**

    Set the copy-on-read region attribute to cause operations that get data to make a copy of the data, instead of returning a reference to the data.

-   **[Requirements for Using Custom Classes in Data Caching](using_custom_classes.html)**

    Follow these guidelines to use custom domain classes for your cached entry keys and values.