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Sun Java System Portal Server 7.1 Technical Reference

Fuse Example

This example uses the merge type fuse to create role-based channel list.

Use the fuse merge semantic to combine non-atomic display profile objects. These objects include Collection and the available or selected channel lists. Here, fuse indicates that all the properties contained in the non-atomic property should also be merged. Using fuse in this way enables the final non-atomic property presented to the user to be build up from various documents.

The following example display profile documents are for a user who belongs to the admin, employee, and movieFreak roles. The selected channels for the user appear at the end.

Example 17–1 Display Profile for the Admin Role


<Container name="JSPTableContainer" provider="JSPTableContainerProvider" merge="fuse">
    <Properties> ... </Properties>
    <Available> ... </Available>
    <Selected merge="fuse">
        <Reference value="Outages"/>
        <Reference value="SolarisAdmin"/>
        <Reference value="AdminTipoftheDay"/>
    </Selected>
</Container>

Display Profile for the Employee Role


<Container name="JSPTableContainer" provider="JSPTableContainerProvider" merge="fuse">
    <Properties> ... </Properties>
    <Available> ... </Available>
    <Selected merge="fuse">
        <Reference value="Benefits"/>
        <Reference value="EmployeeNews"/>
    </Selected>
</Container>

Display Profile for the movieFreak Role


<Container name="JSPTableContainer" provider="JSPTableContainerProvider" merge="fuse">
    <Properties> ... </Properties>
    <Available> ... </Available>
    <Selected merge="fuse">
        <Reference value="NewMoviesReleases"/>
        <Reference value="MovieShowTimes"/>
    </Selected>
</Container>

The resultant list of selected channels for the user is as follows, with the available channel list ordered in the same way that the merging was applied, from lower to higher priority:


<Container name="JSPTableContainer" provider="JSPTableContainerProvider" merge="fuse">
    <Properties> ... </Properties>
    <Available> ... </Available>
    <Selected merge="fuse">
        <Reference value="Outages"/>
        <Reference value="SolarisAdmin"/>
        <Reference value="AdminTipoftheDay"/>
        <Reference value="Benefits"/>
        <Reference value="EmployeeNews"/>
        <Reference value="NewMoviesReleases"/>
        <Reference value="MovieShowTimes"/>
    </Selected>
</Container>