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<div class="subTitle">org.objectweb.asm</div>
<h2 title="Class Attribute" class="title">Class Attribute</h2>
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<li>org.objectweb.asm.Attribute</li>
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<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../org/objectweb/asm/attrs/StackMapAttribute.html" title="class in org.objectweb.asm.attrs">StackMapAttribute</a>, <a href="../../../org/objectweb/asm/attrs/StackMapTableAttribute.html" title="class in org.objectweb.asm.attrs">StackMapTableAttribute</a></dd>
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<pre>public class <span class="strong">Attribute</span>
extends <a href="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
<div class="block">A non standard class, field, method or code attribute.</div>
<dl><dt><span class="strong">Author:</span></dt>
<dd>Eric Bruneton, Eugene Kuleshov</dd></dl>
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<h3>Field Summary</h3>
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<caption><span>Fields</span><span class="tabEnd"> </span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
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<tr class="altColor">
<td class="colFirst"><code><a href="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../org/objectweb/asm/Attribute.html#type">type</a></strong></code>
<div class="block">The type of this attribute.</div>
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<td class="colFirst"><code>protected </code></td>
<td class="colLast"><code><strong><a href="../../../org/objectweb/asm/Attribute.html#Attribute(java.lang.String)">Attribute</a></strong>(<a href="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> type)</code>
<div class="block">Constructs a new empty attribute.</div>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<td class="colFirst"><code>protected <a href="../../../org/objectweb/asm/Label.html" title="class in org.objectweb.asm">Label</a>[]</code></td>
<td class="colLast"><code><strong><a href="../../../org/objectweb/asm/Attribute.html#getLabels()">getLabels</a></strong>()</code>
<div class="block">Returns the labels corresponding to this attribute.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../org/objectweb/asm/Attribute.html#isCodeAttribute()">isCodeAttribute</a></strong>()</code>
<div class="block">Returns <tt>true</tt> if this type of attribute is a code attribute.</div>
</td>
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<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../org/objectweb/asm/Attribute.html#isUnknown()">isUnknown</a></strong>()</code>
<div class="block">Returns <tt>true</tt> if this type of attribute is unknown.</div>
</td>
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<tr class="rowColor">
<td class="colFirst"><code>protected <a href="../../../org/objectweb/asm/Attribute.html" title="class in org.objectweb.asm">Attribute</a></code></td>
<td class="colLast"><code><strong><a href="../../../org/objectweb/asm/Attribute.html#read(org.objectweb.asm.ClassReader, int, int, char[], int, org.objectweb.asm.Label[])">read</a></strong>(<a href="../../../org/objectweb/asm/ClassReader.html" title="class in org.objectweb.asm">ClassReader</a> cr,
int off,
int len,
char[] buf,
int codeOff,
<a href="../../../org/objectweb/asm/Label.html" title="class in org.objectweb.asm">Label</a>[] labels)</code>
<div class="block">Reads a <a href="../../../org/objectweb/asm/Attribute.html#type"><code>type</code></a> attribute.</div>
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<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../../org/objectweb/asm/ByteVector.html" title="class in org.objectweb.asm">ByteVector</a></code></td>
<td class="colLast"><code><strong><a href="../../../org/objectweb/asm/Attribute.html#write(org.objectweb.asm.ClassWriter, byte[], int, int, int)">write</a></strong>(<a href="../../../org/objectweb/asm/ClassWriter.html" title="class in org.objectweb.asm">ClassWriter</a> cw,
byte[] code,
int len,
int maxStack,
int maxLocals)</code>
<div class="block">Returns the byte array form of this attribute.</div>
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<h3>Methods inherited from class java.lang.<a href="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</a>, <a href="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</a>, <a href="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</a>, <a href="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</a>, <a href="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</a></code></li>
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<h3>Field Detail</h3>
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<h4>type</h4>
<pre>public final <a href="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> type</pre>
<div class="block">The type of this attribute.</div>
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<h4>Attribute</h4>
<pre>protected Attribute(<a href="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> type)</pre>
<div class="block">Constructs a new empty attribute.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>type</code> - the type of the attribute.</dd></dl>
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<h4>isUnknown</h4>
<pre>public boolean isUnknown()</pre>
<div class="block">Returns <tt>true</tt> if this type of attribute is unknown. The default
implementation of this method always returns <tt>true</tt>.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd><tt>true</tt> if this type of attribute is unknown.</dd></dl>
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<h4>isCodeAttribute</h4>
<pre>public boolean isCodeAttribute()</pre>
<div class="block">Returns <tt>true</tt> if this type of attribute is a code attribute.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd><tt>true</tt> if this type of attribute is a code attribute.</dd></dl>
</li>
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<h4>getLabels</h4>
<pre>protected <a href="../../../org/objectweb/asm/Label.html" title="class in org.objectweb.asm">Label</a>[] getLabels()</pre>
<div class="block">Returns the labels corresponding to this attribute.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the labels corresponding to this attribute, or <tt>null</tt> if
this attribute is not a code attribute that contains labels.</dd></dl>
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<h4>read</h4>
<pre>protected <a href="../../../org/objectweb/asm/Attribute.html" title="class in org.objectweb.asm">Attribute</a> read(<a href="../../../org/objectweb/asm/ClassReader.html" title="class in org.objectweb.asm">ClassReader</a> cr,
int off,
int len,
char[] buf,
int codeOff,
<a href="../../../org/objectweb/asm/Label.html" title="class in org.objectweb.asm">Label</a>[] labels)</pre>
<div class="block">Reads a <a href="../../../org/objectweb/asm/Attribute.html#type"><code>type</code></a> attribute. This method must return a <i>new</i>
<a href="../../../org/objectweb/asm/Attribute.html" title="class in org.objectweb.asm"><code>Attribute</code></a> object, of type <a href="../../../org/objectweb/asm/Attribute.html#type"><code>type</code></a>, corresponding to
the <tt>len</tt> bytes starting at the given offset, in the given class
reader.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>cr</code> - the class that contains the attribute to be read.</dd><dd><code>off</code> - index of the first byte of the attribute's content in <a href="../../../org/objectweb/asm/ClassReader.html#b"><code>cr.b</code></a>. The 6 attribute header bytes, containing the
type and the length of the attribute, are not taken into account
here.</dd><dd><code>len</code> - the length of the attribute's content.</dd><dd><code>buf</code> - buffer to be used to call
<a href="../../../org/objectweb/asm/ClassReader.html#readUTF8(int, char[])"><code>readUTF8</code></a>,
<a href="../../../org/objectweb/asm/ClassReader.html#readClass(int, char[])"><code>readClass</code></a> or
<a href="../../../org/objectweb/asm/ClassReader.html#readConst(int, char[])"><code>readConst</code></a>.</dd><dd><code>codeOff</code> - index of the first byte of code's attribute content in
<a href="../../../org/objectweb/asm/ClassReader.html#b"><code>cr.b</code></a>, or -1 if the attribute to be read is
not a code attribute. The 6 attribute header bytes, containing the
type and the length of the attribute, are not taken into account
here.</dd><dd><code>labels</code> - the labels of the method's code, or <tt>null</tt> if the
attribute to be read is not a code attribute.</dd>
<dt><span class="strong">Returns:</span></dt><dd>a <i>new</i> <a href="../../../org/objectweb/asm/Attribute.html" title="class in org.objectweb.asm"><code>Attribute</code></a> object corresponding to the given
bytes.</dd></dl>
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<h4>write</h4>
<pre>protected <a href="../../../org/objectweb/asm/ByteVector.html" title="class in org.objectweb.asm">ByteVector</a> write(<a href="../../../org/objectweb/asm/ClassWriter.html" title="class in org.objectweb.asm">ClassWriter</a> cw,
byte[] code,
int len,
int maxStack,
int maxLocals)</pre>
<div class="block">Returns the byte array form of this attribute.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>cw</code> - the class to which this attribute must be added. This parameter
can be used to add to the constant pool of this class the items
that corresponds to this attribute.</dd><dd><code>code</code> - the bytecode of the method corresponding to this code
attribute, or <tt>null</tt> if this attribute is not a code
attributes.</dd><dd><code>len</code> - the length of the bytecode of the method corresponding to this
code attribute, or <tt>null</tt> if this attribute is not a code
attribute.</dd><dd><code>maxStack</code> - the maximum stack size of the method corresponding to
this code attribute, or -1 if this attribute is not a code
attribute.</dd><dd><code>maxLocals</code> - the maximum number of local variables of the method
corresponding to this code attribute, or -1 if this attribute is
not a code attribute.</dd>
<dt><span class="strong">Returns:</span></dt><dd>the byte array form of this attribute.</dd></dl>
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