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<h2 title="Interface IFieldFormatter" class="title">Interface IFieldFormatter</h2>
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<dt>All Known Implementing Classes:</dt>
<dd><code><a href="../../vm29/tools/ddrinteractive/structureformat/base/ArrayFormatter.html" title="class in com.ibm.j9ddr.vm29.tools.ddrinteractive.structureformat.base">ArrayFormatter</a></code>, <code><a href="BaseFieldFormatter.html" title="class in com.ibm.j9ddr.tools.ddrinteractive">BaseFieldFormatter</a></code>, <code><a href="../../vm29/tools/ddrinteractive/structureformat/base/BoolFormatter.html" title="class in com.ibm.j9ddr.vm29.tools.ddrinteractive.structureformat.base">BoolFormatter</a></code>, <code><a href="../../vm29/tools/ddrinteractive/structureformat/extensions/CStringFieldFormatter.html" title="class in com.ibm.j9ddr.vm29.tools.ddrinteractive.structureformat.extensions">CStringFieldFormatter</a></code>, <code><a href="../../vm29/tools/ddrinteractive/structureformat/base/DoubleFormatter.html" title="class in com.ibm.j9ddr.vm29.tools.ddrinteractive.structureformat.base">DoubleFormatter</a></code>, <code><a href="../../vm29/tools/ddrinteractive/structureformat/base/EnumFormatter.html" title="class in com.ibm.j9ddr.vm29.tools.ddrinteractive.structureformat.base">EnumFormatter</a></code>, <code><a href="../../vm29/tools/ddrinteractive/structureformat/base/FloatFormatter.html" title="class in com.ibm.j9ddr.vm29.tools.ddrinteractive.structureformat.base">FloatFormatter</a></code>, <code><a href="../../vm29/tools/ddrinteractive/structureformat/extensions/J9ClassFieldFormatter.html" title="class in com.ibm.j9ddr.vm29.tools.ddrinteractive.structureformat.extensions">J9ClassFieldFormatter</a></code>, <code><a href="../../vm29/tools/ddrinteractive/structureformat/extensions/J9ConstantPoolFieldFormatter.html" title="class in com.ibm.j9ddr.vm29.tools.ddrinteractive.structureformat.extensions">J9ConstantPoolFieldFormatter</a></code>, <code><a href="../../vm29/tools/ddrinteractive/structureformat/extensions/J9MethodFieldFormatter.html" title="class in com.ibm.j9ddr.vm29.tools.ddrinteractive.structureformat.extensions">J9MethodFieldFormatter</a></code>, <code><a href="../../vm29/tools/ddrinteractive/structureformat/extensions/J9ObjectFieldFormatter.html" title="class in com.ibm.j9ddr.vm29.tools.ddrinteractive.structureformat.extensions">J9ObjectFieldFormatter</a></code>, <code><a href="../../vm29/tools/ddrinteractive/structureformat/base/J9SRPFormatter.html" title="class in com.ibm.j9ddr.vm29.tools.ddrinteractive.structureformat.base">J9SRPFormatter</a></code>, <code><a href="../../vm29/tools/ddrinteractive/structureformat/base/PointerFormatter.html" title="class in com.ibm.j9ddr.vm29.tools.ddrinteractive.structureformat.base">PointerFormatter</a></code>, <code><a href="../../vm29/tools/ddrinteractive/structureformat/base/ScalarFormatter.html" title="class in com.ibm.j9ddr.vm29.tools.ddrinteractive.structureformat.base">ScalarFormatter</a></code>, <code><a href="../../vm29/tools/ddrinteractive/structureformat/base/StructureFormatter.html" title="class in com.ibm.j9ddr.vm29.tools.ddrinteractive.structureformat.base">StructureFormatter</a></code>, <code><a href="../../vm29/tools/ddrinteractive/structureformat/base/StructurePointerFormatter.html" title="class in com.ibm.j9ddr.vm29.tools.ddrinteractive.structureformat.base">StructurePointerFormatter</a></code>, <code><a href="../../vm29/tools/ddrinteractive/structureformat/base/U64ScalarFormatter.html" title="class in com.ibm.j9ddr.vm29.tools.ddrinteractive.structureformat.base">U64ScalarFormatter</a></code>, <code><a href="../../vm29/tools/ddrinteractive/structureformat/base/VoidFormatter.html" title="class in com.ibm.j9ddr.vm29.tools.ddrinteractive.structureformat.base">VoidFormatter</a></code></dd>
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<pre>public interface <span class="typeNameLabel">IFieldFormatter</span></pre>
<div class="block">Interface for objects that format fields in structures.
e.g. turning
struct J9NativeLibrary * librariesTail
into
!j9nativelibrary 0x0019CDA8
The IFieldFormatters form a chain of responsibility. The structure ICommand
calls each IFieldFormatter in turn three times.
The first pass calls preFormat() (stopping either when a IFieldFormatter
returns STOP_WALKING, or the end of the chain is reached.)
The second pass calls format() - where the default formatting behaviour
is run.
The third pass calls postFormat()</div>
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<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code><a href="FormatWalkResult.html" title="enum in com.ibm.j9ddr.tools.ddrinteractive">FormatWalkResult</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#format(java.lang.String,java.lang.String,java.lang.String,int,long,java.io.PrintStream,com.ibm.j9ddr.tools.ddrinteractive.Context,com.ibm.j9ddr.tools.ddrinteractive.IStructureFormatter)">format</a></span>&#8203;(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a>&nbsp;name,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a>&nbsp;type,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a>&nbsp;declaredType,
int&nbsp;typeCode,
long&nbsp;address,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/io/PrintStream.html?is-external=true" title="class or interface in java.io" class="externalLink" target="_blank">PrintStream</a>&nbsp;out,
<a href="Context.html" title="class in com.ibm.j9ddr.tools.ddrinteractive">Context</a>&nbsp;context,
<a href="IStructureFormatter.html" title="interface in com.ibm.j9ddr.tools.ddrinteractive">IStructureFormatter</a>&nbsp;structureFormatter)</code></th>
<td class="colLast">
<div class="block">Method called by the Structure command to format a field, after preFormat() and before postFormat()</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="FormatWalkResult.html" title="enum in com.ibm.j9ddr.tools.ddrinteractive">FormatWalkResult</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#postFormat(java.lang.String,java.lang.String,java.lang.String,int,long,java.io.PrintStream,com.ibm.j9ddr.tools.ddrinteractive.Context,com.ibm.j9ddr.tools.ddrinteractive.IStructureFormatter)">postFormat</a></span>&#8203;(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a>&nbsp;name,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a>&nbsp;type,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a>&nbsp;declaredType,
int&nbsp;typeCode,
long&nbsp;address,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/io/PrintStream.html?is-external=true" title="class or interface in java.io" class="externalLink" target="_blank">PrintStream</a>&nbsp;out,
<a href="Context.html" title="class in com.ibm.j9ddr.tools.ddrinteractive">Context</a>&nbsp;context,
<a href="IStructureFormatter.html" title="interface in com.ibm.j9ddr.tools.ddrinteractive">IStructureFormatter</a>&nbsp;structureFormatter)</code></th>
<td class="colLast">
<div class="block">Method called by the Structure command after preFormat() and format().</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code><a href="FormatWalkResult.html" title="enum in com.ibm.j9ddr.tools.ddrinteractive">FormatWalkResult</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#preFormat(java.lang.String,java.lang.String,java.lang.String,int,long,java.io.PrintStream,com.ibm.j9ddr.tools.ddrinteractive.Context,com.ibm.j9ddr.tools.ddrinteractive.IStructureFormatter)">preFormat</a></span>&#8203;(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a>&nbsp;name,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a>&nbsp;type,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a>&nbsp;declaredType,
int&nbsp;typeCode,
long&nbsp;address,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/io/PrintStream.html?is-external=true" title="class or interface in java.io" class="externalLink" target="_blank">PrintStream</a>&nbsp;out,
<a href="Context.html" title="class in com.ibm.j9ddr.tools.ddrinteractive">Context</a>&nbsp;context,
<a href="IStructureFormatter.html" title="interface in com.ibm.j9ddr.tools.ddrinteractive">IStructureFormatter</a>&nbsp;structureFormatter)</code></th>
<td class="colLast">
<div class="block">Method called by the Structure command before the format() method walk.</div>
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<h4>preFormat</h4>
<pre class="methodSignature"><a href="FormatWalkResult.html" title="enum in com.ibm.j9ddr.tools.ddrinteractive">FormatWalkResult</a>&nbsp;preFormat&#8203;(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a>&nbsp;name,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a>&nbsp;type,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a>&nbsp;declaredType,
int&nbsp;typeCode,
long&nbsp;address,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/io/PrintStream.html?is-external=true" title="class or interface in java.io" class="externalLink" target="_blank">PrintStream</a>&nbsp;out,
<a href="Context.html" title="class in com.ibm.j9ddr.tools.ddrinteractive">Context</a>&nbsp;context,
<a href="IStructureFormatter.html" title="interface in com.ibm.j9ddr.tools.ddrinteractive">IStructureFormatter</a>&nbsp;structureFormatter)
throws <a href="../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre>
<div class="block">Method called by the Structure command before the format() method walk.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>name</code> - Name of field being formatted.</dd>
<dd><code>type</code> - Type of field to be formatted. E.g. struct J9JavaVM</dd>
<dd><code>declaredType</code> - Type as declared in C. E.g. This may be char* where type is U8*</dd>
<dd><code>typeCode</code> - StructureHelper type code. E.g. TYPE_STRUCTURE</dd>
<dd><code>address</code> - Address of field to be formatted</dd>
<dd><code>out</code> - PrintStream to write result to. Do not write a new line at the end of your output.</dd>
<dd><code>context</code> - Current DDRInteractive context</dd>
<dd><code>formattingDirector</code> - FormattingDirector; useful if you need to rerun a different field format (e.g. when working with J9SRPs)</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>KEEP_WALKING if the format walk should keep going (delegating to other formatters), STOP_WALKING if the format walk should stop</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd>
</dl>
</li>
</ul>
<a id="format(java.lang.String,java.lang.String,java.lang.String,int,long,java.io.PrintStream,com.ibm.j9ddr.tools.ddrinteractive.Context,com.ibm.j9ddr.tools.ddrinteractive.IStructureFormatter)">
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<h4>format</h4>
<pre class="methodSignature"><a href="FormatWalkResult.html" title="enum in com.ibm.j9ddr.tools.ddrinteractive">FormatWalkResult</a>&nbsp;format&#8203;(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a>&nbsp;name,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a>&nbsp;type,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a>&nbsp;declaredType,
int&nbsp;typeCode,
long&nbsp;address,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/io/PrintStream.html?is-external=true" title="class or interface in java.io" class="externalLink" target="_blank">PrintStream</a>&nbsp;out,
<a href="Context.html" title="class in com.ibm.j9ddr.tools.ddrinteractive">Context</a>&nbsp;context,
<a href="IStructureFormatter.html" title="interface in com.ibm.j9ddr.tools.ddrinteractive">IStructureFormatter</a>&nbsp;structureFormatter)
throws <a href="../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre>
<div class="block">Method called by the Structure command to format a field, after preFormat() and before postFormat()</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>name</code> - Name of field being formatted.</dd>
<dd><code>type</code> - Type of field to be formatted. E.g. struct J9JavaVM</dd>
<dd><code>declaredType</code> - Type as declared in C. E.g. This may be char* where type is U8*</dd>
<dd><code>typeCode</code> - StructureHelper type code. E.g. TYPE_STRUCTURE</dd>
<dd><code>address</code> - Address of field to be formatted</dd>
<dd><code>out</code> - PrintStream to write result to. Do not write a new line at the end of your output.</dd>
<dd><code>context</code> - Current DDRInteractive context</dd>
<dd><code>formattingDirector</code> - FormattingDirector; useful if you need to rerun a different field format (e.g. when working with J9SRPs)</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>KEEP_WALKING if the format walk should keep going (delegating to other formatters), STOP_WALKING if the format walk should stop</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd>
</dl>
</li>
</ul>
<a id="postFormat(java.lang.String,java.lang.String,java.lang.String,int,long,java.io.PrintStream,com.ibm.j9ddr.tools.ddrinteractive.Context,com.ibm.j9ddr.tools.ddrinteractive.IStructureFormatter)">
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<h4>postFormat</h4>
<pre class="methodSignature"><a href="FormatWalkResult.html" title="enum in com.ibm.j9ddr.tools.ddrinteractive">FormatWalkResult</a>&nbsp;postFormat&#8203;(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a>&nbsp;name,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a>&nbsp;type,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a>&nbsp;declaredType,
int&nbsp;typeCode,
long&nbsp;address,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/io/PrintStream.html?is-external=true" title="class or interface in java.io" class="externalLink" target="_blank">PrintStream</a>&nbsp;out,
<a href="Context.html" title="class in com.ibm.j9ddr.tools.ddrinteractive">Context</a>&nbsp;context,
<a href="IStructureFormatter.html" title="interface in com.ibm.j9ddr.tools.ddrinteractive">IStructureFormatter</a>&nbsp;structureFormatter)
throws <a href="../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre>
<div class="block">Method called by the Structure command after preFormat() and format().</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>name</code> - Name of field being formatted.</dd>
<dd><code>type</code> - Type of field to be formatted. E.g. struct J9JavaVM</dd>
<dd><code>declaredType</code> - Type as declared in C. E.g. This may be char* where type is U8*</dd>
<dd><code>typeCode</code> - StructureHelper type code. E.g. TYPE_STRUCTURE</dd>
<dd><code>address</code> - Address of field to be formatted</dd>
<dd><code>out</code> - PrintStream to write result to. Do not write a new line at the end of your output.</dd>
<dd><code>context</code> - Current DDRInteractive context</dd>
<dd><code>structureFormatter</code> - StructureFormatter; useful if you need to rerun a different field format (e.g. when working with J9SRPs)</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>KEEP_WALKING if the format walk should keep going (delegating to other formatters), STOP_WALKING if the format walk should stop</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd>
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