attribute.html

一个用于对.class文件进行插桩的开源工具

name_index</H3>
<PRE>
protected int <B>name_index</B></PRE>
<DL>
</DL>
<HR>

<A NAME="length"><!-- --></A><H3>
length</H3>
<PRE>
protected int <B>length</B></PRE>
<DL>
</DL>
<HR>

<A NAME="tag"><!-- --></A><H3>
tag</H3>
<PRE>
protected byte <B>tag</B></PRE>
<DL>
</DL>
<HR>

<A NAME="constant_pool"><!-- --></A><H3>
constant_pool</H3>
<PRE>
protected <A HREF="../../../../org/apache/bcel/classfile/ConstantPool.html">ConstantPool</A> <B>constant_pool</B></PRE>
<DL>
</DL>

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<B>Method Detail</B></FONT></TD>
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<A NAME="accept(org.apache.bcel.classfile.Visitor)"><!-- --></A><H3>
accept</H3>
<PRE>
public abstract void <B>accept</B>(<A HREF="../../../../org/apache/bcel/classfile/Visitor.html">Visitor</A>&nbsp;v)</PRE>
<DL>
<DD>Called by objects that are traversing the nodes of the tree implicitely
 defined by the contents of a Java class. I.e., the hierarchy of methods,
 fields, attributes, etc. spawns a tree of objects.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../../../org/apache/bcel/classfile/Node.html#accept(org.apache.bcel.classfile.Visitor)">accept</A></CODE> in interface <CODE><A HREF="../../../../org/apache/bcel/classfile/Node.html">Node</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>v</CODE> - Visitor object</DL>
</DD>
</DL>
<HR>

<A NAME="dump(java.io.DataOutputStream)"><!-- --></A><H3>
dump</H3>
<PRE>
public void <B>dump</B>(java.io.DataOutputStream&nbsp;file)
          throws java.io.IOException</PRE>
<DL>
<DD>Dump attribute to file stream in binary format.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>file</CODE> - Output file stream</DL>
</DD>
</DL>
<HR>

<A NAME="addAttributeReader(java.lang.String, org.apache.bcel.classfile.AttributeReader)"><!-- --></A><H3>
addAttributeReader</H3>
<PRE>
public static void <B>addAttributeReader</B>(java.lang.String&nbsp;name,
                                      <A HREF="../../../../org/apache/bcel/classfile/AttributeReader.html">AttributeReader</A>&nbsp;r)</PRE>
<DL>
<DD>Add an Attribute reader capable of parsing (user-defined) attributes
 named "name". You should not add readers for the standard attributes
 such as "LineNumberTable", because those are handled internally.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the attribute as stored in the class file<DD><CODE>r</CODE> - the reader object</DL>
</DD>
</DL>
<HR>

<A NAME="removeAttributeReader(java.lang.String)"><!-- --></A><H3>
removeAttributeReader</H3>
<PRE>
public static void <B>removeAttributeReader</B>(java.lang.String&nbsp;name)</PRE>
<DL>
<DD>Remove attribute reader<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the attribute as stored in the class file</DL>
</DD>
</DL>
<HR>

<A NAME="getLength()"><!-- --></A><H3>
getLength</H3>
<PRE>
public final int <B>getLength</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>Length of attribute field in bytes.</DL>
</DD>
</DL>
<HR>

<A NAME="setLength(int)"><!-- --></A><H3>
setLength</H3>
<PRE>
public final void <B>setLength</B>(int&nbsp;length)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>Attribute</CODE> - length in bytes.</DL>
</DD>
</DL>
<HR>

<A NAME="setNameIndex(int)"><!-- --></A><H3>
setNameIndex</H3>
<PRE>
public final void <B>setNameIndex</B>(int&nbsp;name_index)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name_index</CODE> - of attribute.</DL>
</DD>
</DL>
<HR>

<A NAME="getNameIndex()"><!-- --></A><H3>
getNameIndex</H3>
<PRE>
public final int <B>getNameIndex</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>Name index in constant pool of attribute name.</DL>
</DD>
</DL>
<HR>

<A NAME="getTag()"><!-- --></A><H3>
getTag</H3>
<PRE>
public final byte <B>getTag</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>Tag of attribute, i.e., its type. Value may not be altered, thus
 there is no setTag() method.</DL>
</DD>
</DL>
<HR>

<A NAME="getConstantPool()"><!-- --></A><H3>
getConstantPool</H3>
<PRE>
public final <A HREF="../../../../org/apache/bcel/classfile/ConstantPool.html">ConstantPool</A> <B>getConstantPool</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>Constant pool used by this object.<DT><B>See Also: </B><DD><A HREF="../../../../org/apache/bcel/classfile/ConstantPool.html"><CODE>ConstantPool</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setConstantPool(org.apache.bcel.classfile.ConstantPool)"><!-- --></A><H3>
setConstantPool</H3>
<PRE>
public final void <B>setConstantPool</B>(<A HREF="../../../../org/apache/bcel/classfile/ConstantPool.html">ConstantPool</A>&nbsp;constant_pool)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>constant_pool</CODE> - Constant pool to be used for this object.<DT><B>See Also: </B><DD><A HREF="../../../../org/apache/bcel/classfile/ConstantPool.html"><CODE>ConstantPool</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="clone()"><!-- --></A><H3>
clone</H3>
<PRE>
public java.lang.Object <B>clone</B>()</PRE>
<DL>
<DD>Use copy() if you want to have a deep copy(), i.e., with all references
 copied correctly.<DD><DL>
<DT><B>Overrides:</B><DD><CODE>clone</CODE> in class <CODE>java.lang.Object</CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>shallow copy of this attribute</DL>
</DD>
</DL>
<HR>

<A NAME="copy(org.apache.bcel.classfile.ConstantPool)"><!-- --></A><H3>
copy</H3>
<PRE>
public abstract <A HREF="../../../../org/apache/bcel/classfile/Attribute.html">Attribute</A> <B>copy</B>(<A HREF="../../../../org/apache/bcel/classfile/ConstantPool.html">ConstantPool</A>&nbsp;constant_pool)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>deep copy of this attribute</DL>
</DD>
</DL>
<HR>

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE>toString</CODE> in class <CODE>java.lang.Object</CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>attribute name.</DL>
</DD>
</DL>
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