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| <ul><li><a class="page-menu-link" href="#autoid_88" data-menu-target="autoid_88">Synopsis</a></li><li><a class="page-menu-link" href="#autoid_89" data-menu-target="autoid_89">Description</a></li></ul> </div><a name="ref.directive.flush"></a> |
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| <h2 class="content-header header-section2" id="autoid_88">Synopsis</h2> |
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| <pre class="metaTemplate"><code class="inline-code"><#flush></code></pre> |
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| <h2 class="content-header header-section2" id="autoid_89">Description</h2> |
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| <p>When FreeMarker generates the output, it's usually not sent |
| immediately to the final receiving party (like a web browser or a |
| destination file), but is accumulated in a buffer, then it's sent |
| out in bigger chunks. The exact rules of the buffering is not |
| decided by FreeMarker, but by the embedding software. Sending out |
| the content accumulated in the buffer is called flushing. Although |
| flushing happens automatically, sometimes you want to force it on |
| certain points of the template processing, and this is what the |
| <code class="inline-code">flush</code> directive does. Whether it's needed at |
| certain points should be decided by a programmer, not a |
| designer.</p> |
| |
| <p>Note that while <code class="inline-code">flush</code> tells the embedding |
| software that we want to flush, that might as well decides to ignore |
| this request. It's not in the hands of FreeMarker.</p> |
| |
| <p><span class="marked-for-programmers">Flush simply calls the |
| <code class="inline-code">flush()</code> method of the currently used |
| <code class="inline-code">java.io.Writer</code> instance. The whole buffering and |
| flushing mechanism is implemented in the <code class="inline-code">Writer</code> |
| (that you have passed as the parameter of the |
| <code class="inline-code">Template.process</code> method); FreeMarker does not |
| deal with it.</span></p> |
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