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| <li>Summary: </li> |
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| <div class="sub-title"><span class="module-label-in-type">Module</span> <a href="../../../../module-summary.html">openj9.dtfj</a></div> |
| <div class="sub-title"><span class="package-label-in-type">Package</span> <a href="package-summary.html">com.ibm.dtfj.java</a></div> |
| <h1 title="Interface JavaRuntimeMemoryCategory" class="title">Interface JavaRuntimeMemoryCategory</h1> |
| </div> |
| <section class="description"> |
| <dl class="notes"> |
| <dt>All Known Implementing Classes:</dt> |
| <dd><code><a href="javacore/JCJavaRuntimeMemoryCategory.html" title="class in com.ibm.dtfj.java.javacore">JCJavaRuntimeMemoryCategory</a></code></dd> |
| </dl> |
| <hr> |
| <div class="type-signature"><span class="modifiers">public interface </span><span class="element-name type-name-label">JavaRuntimeMemoryCategory</span></div> |
| <div class="block"><p>Represents a category of native memory allocated by the Java runtime.</p> |
| |
| <p>A category is a high-level grouping of memory allocations |
| such as "Threads", "Classes" or "Java Heap".</p> |
| |
| <p>Some Java runtime implementations use categories to track native memory |
| use in the JRE.</p> |
| |
| <p>Categories can have child categories and form a hierarchy.</p> |
| |
| <p> The getShallow* methods return the allocation data for |
| just this category. The getDeep* methods return the allocation |
| data for this category and all its child categories. </p></div> |
| <dl class="notes"> |
| <dt>Since:</dt> |
| <dd>1.5</dd> |
| </dl> |
| </section> |
| <section class="summary"> |
| <ul class="summary-list"> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <li> |
| <section class="method-summary" id="method.summary"> |
| <h2>Method Summary</h2> |
| <div id="method-summary-table"> |
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| <div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0"> |
| <div class="table-header col-first">Modifier and Type</div> |
| <div class="table-header col-second">Method</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link" target="_blank">Iterator</a></code></div> |
| <div class="col-second even-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"><code><span class="member-name-link"><a href="#getChildren()">getChildren</a></span>()</code></div> |
| <div class="col-last even-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"> |
| <div class="block">Gets iterator of child categories.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"><code>long</code></div> |
| <div class="col-second odd-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"><code><span class="member-name-link"><a href="#getDeepAllocations()">getDeepAllocations</a></span>()</code></div> |
| <div class="col-last odd-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"> |
| <div class="block">Gets number of allocations recorded against this category, and all children of this category.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"><code>long</code></div> |
| <div class="col-second even-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"><code><span class="member-name-link"><a href="#getDeepBytes()">getDeepBytes</a></span>()</code></div> |
| <div class="col-last even-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"> |
| <div class="block">Gets number of bytes recorded against this category, and all children of this category.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link" target="_blank">Iterator</a></code></div> |
| <div class="col-second odd-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"><code><span class="member-name-link"><a href="#getMemorySections(boolean)">getMemorySections</a></span>​(boolean includeFreed)</code></div> |
| <div class="col-last odd-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"> |
| <div class="block">Gets iterator of memory sections allocated against this category.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link" target="_blank">String</a></code></div> |
| <div class="col-second even-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"><code><span class="member-name-link"><a href="#getName()">getName</a></span>()</code></div> |
| <div class="col-last even-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"> |
| <div class="block">Gets the name of this category.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"><code>long</code></div> |
| <div class="col-second odd-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"><code><span class="member-name-link"><a href="#getShallowAllocations()">getShallowAllocations</a></span>()</code></div> |
| <div class="col-last odd-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"> |
| <div class="block">Gets number of allocations recorded against this category.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"><code>long</code></div> |
| <div class="col-second even-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"><code><span class="member-name-link"><a href="#getShallowBytes()">getShallowBytes</a></span>()</code></div> |
| <div class="col-last even-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"> |
| <div class="block">Gets number of bytes allocated under this category.</div> |
| </div> |
| </div> |
| </div> |
| </div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| <section class="details"> |
| <ul class="details-list"> |
| <!-- ============ METHOD DETAIL ========== --> |
| <li> |
| <section class="method-details" id="method.detail"> |
| <h2>Method Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="getName()"> |
| <h3>getName</h3> |
| <div class="member-signature"><span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link" target="_blank">String</a></span> <span class="element-name">getName</span>() |
| throws <span class="exceptions"><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></span></div> |
| <div class="block">Gets the name of this category. E.g. "Classes".</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>Name string.</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getShallowAllocations()"> |
| <h3>getShallowAllocations</h3> |
| <div class="member-signature"><span class="return-type">long</span> <span class="element-name">getShallowAllocations</span>() |
| throws <span class="exceptions"><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></span></div> |
| <div class="block">Gets number of allocations recorded against this category.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>Allocation count.</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getShallowBytes()"> |
| <h3>getShallowBytes</h3> |
| <div class="member-signature"><span class="return-type">long</span> <span class="element-name">getShallowBytes</span>() |
| throws <span class="exceptions"><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></span></div> |
| <div class="block">Gets number of bytes allocated under this category.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>Number of bytes.</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getDeepAllocations()"> |
| <h3>getDeepAllocations</h3> |
| <div class="member-signature"><span class="return-type">long</span> <span class="element-name">getDeepAllocations</span>() |
| throws <span class="exceptions"><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></span></div> |
| <div class="block">Gets number of allocations recorded against this category, and all children of this category.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>Allocation count.</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getDeepBytes()"> |
| <h3>getDeepBytes</h3> |
| <div class="member-signature"><span class="return-type">long</span> <span class="element-name">getDeepBytes</span>() |
| throws <span class="exceptions"><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></span></div> |
| <div class="block">Gets number of bytes recorded against this category, and all children of this category.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>Number of bytes.</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getChildren()"> |
| <h3>getChildren</h3> |
| <div class="member-signature"><span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link" target="_blank">Iterator</a></span> <span class="element-name">getChildren</span>() |
| throws <span class="exceptions"><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></span></div> |
| <div class="block">Gets iterator of child categories.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>Iterator of JavaRuntimeMemoryCategory objects that are immediate children of this category.</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getMemorySections(boolean)"> |
| <h3>getMemorySections</h3> |
| <div class="member-signature"><span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link" target="_blank">Iterator</a></span> <span class="element-name">getMemorySections</span>​<span class="parameters">(boolean includeFreed)</span> |
| throws <span class="exceptions"><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a>, |
| <a href="../image/DataUnavailable.html" title="class in com.ibm.dtfj.image">DataUnavailable</a></span></div> |
| <div class="block">Gets iterator of memory sections allocated against this category.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>includeFreed</code> - If true, iterator will iterate over blocks of memory that have been freed, but haven't been re-used yet.</dd> |
| <dt>Returns:</dt> |
| <dd>Iterator of memory sections</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></code></dd> |
| <dd><code><a href="../image/DataUnavailable.html" title="class in com.ibm.dtfj.image">DataUnavailable</a></code></dd> |
| <dt>See Also:</dt> |
| <dd><a href="JavaRuntimeMemorySection.html" title="interface in com.ibm.dtfj.java"><code>CorruptData</code></a></dd> |
| </dl> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
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