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Publishing Reports to the Web - Downloads - Oracle

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<strong>Oracle</strong>AS <strong>Reports</strong> Services Components<br />

elimination of a single point of failure, fur<strong>the</strong>r supporting <strong>the</strong> possibility of a fail-safe<br />

environment.<br />

Note:: <strong>Reports</strong> Server clustering is discussed in detail in<br />

Chapter 12, "Clustering <strong>Reports</strong> Servers".<br />

<strong>Oracle</strong>AS <strong>Reports</strong> Services provides event-based reporting. This uses database events<br />

<strong>to</strong> trigger <strong>the</strong> generation of a report. For example, you can define an event that signals<br />

a change in revenue levels above or below a particular watermark. If <strong>the</strong> change occurs<br />

in <strong>the</strong> database (<strong>the</strong> event), a report is au<strong>to</strong>matically generated. This feature is<br />

discussed in detail in Chapter 17, "Using Event-Driven <strong>Publishing</strong>".<br />

<strong>Oracle</strong>AS <strong>Reports</strong> Services includes a distribution module that uses XML <strong>to</strong> define<br />

unique configurations for <strong>the</strong> distribution of reports. Call <strong>the</strong> desired XML file from<br />

<strong>the</strong> runtime command line or URL <strong>to</strong> generate one report, and let <strong>the</strong> server handle<br />

diverse outputs and destinations. Processing time is significantly reduced and<br />

configuration changes can all be handled within <strong>the</strong> XML file. This feature is discussed<br />

in detail in Chapter 15, "Creating Advanced Distributions".<br />

1.2 <strong>Oracle</strong>AS <strong>Reports</strong> Services Components<br />

Figure 1–1 <strong>Oracle</strong>AS <strong>Reports</strong> Services Components<br />

Understanding <strong>the</strong> <strong>Oracle</strong>AS <strong>Reports</strong> Services Architecture 1-3

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