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Attribute
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com.sleepycat.asm</FONT>
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Class Attribute</H2>
<PRE>
java.lang.Object
<IMG SRC="../../../resources/inherit.gif" ALT="extended by "><B>com.sleepycat.asm.Attribute</B>
</PRE>
<HR>
<DL>
<DT><PRE>public class <B>Attribute</B><DT>extends java.lang.Object</DL>
</PRE>
<P>
A non standard class, field, method or code attribute.
<P>
<P>
<HR>
<P>
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<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/asm/Attribute.html#type">type</A></B></CODE>
<BR>
The type of this attribute.</TD>
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<CODE>protected </CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/asm/Attribute.html#Attribute(java.lang.String)">Attribute</A></B>(java.lang.String type)</CODE>
<BR>
Constructs a new empty attribute.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected <A HREF="../../../com/sleepycat/asm/Label.html" title="class in com.sleepycat.asm">Label</A>[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/asm/Attribute.html#getLabels()">getLabels</A></B>()</CODE>
<BR>
Returns the labels corresponding to this attribute.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/asm/Attribute.html#isCodeAttribute()">isCodeAttribute</A></B>()</CODE>
<BR>
Returns <tt>true</tt> if this type of attribute is a code attribute.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/asm/Attribute.html#isUnknown()">isUnknown</A></B>()</CODE>
<BR>
Returns <tt>true</tt> if this type of attribute is unknown.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected <A HREF="../../../com/sleepycat/asm/Attribute.html" title="class in com.sleepycat.asm">Attribute</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/asm/Attribute.html#read(com.sleepycat.asm.ClassReader, int, int, char[], int, com.sleepycat.asm.Label[])">read</A></B>(<A HREF="../../../com/sleepycat/asm/ClassReader.html" title="class in com.sleepycat.asm">ClassReader</A> cr,
int off,
int len,
char[] buf,
int codeOff,
<A HREF="../../../com/sleepycat/asm/Label.html" title="class in com.sleepycat.asm">Label</A>[] labels)</CODE>
<BR>
Reads a <A HREF="../../../com/sleepycat/asm/Attribute.html#type"><CODE>type</CODE></A> attribute.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected <A HREF="../../../com/sleepycat/asm/ByteVector.html" title="class in com.sleepycat.asm">ByteVector</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/asm/Attribute.html#write(com.sleepycat.asm.ClassWriter, byte[], int, int, int)">write</A></B>(<A HREF="../../../com/sleepycat/asm/ClassWriter.html" title="class in com.sleepycat.asm">ClassWriter</A> cw,
byte[] code,
int len,
int maxStack,
int maxLocals)</CODE>
<BR>
Returns the byte array form of this attribute.</TD>
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<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
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<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
</TR>
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<P>
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<A NAME="type"><!-- --></A><H3>
type</H3>
<PRE>
public final java.lang.String <B>type</B></PRE>
<DL>
<DD>The type of this attribute.
<P>
<DL>
</DL>
</DL>
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<A NAME="Attribute(java.lang.String)"><!-- --></A><H3>
Attribute</H3>
<PRE>
protected <B>Attribute</B>(java.lang.String type)</PRE>
<DL>
<DD>Constructs a new empty attribute.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>type</CODE> - the type of the attribute.</DL>
</DL>
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<A NAME="isUnknown()"><!-- --></A><H3>
isUnknown</H3>
<PRE>
public boolean <B>isUnknown</B>()</PRE>
<DL>
<DD>Returns <tt>true</tt> if this type of attribute is unknown. The default
implementation of this method always returns <tt>true</tt>.
<P>
<DD><DL>
<DT><B>Returns:</B><DD><tt>true</tt> if this type of attribute is unknown.</DL>
</DD>
</DL>
<HR>
<A NAME="isCodeAttribute()"><!-- --></A><H3>
isCodeAttribute</H3>
<PRE>
public boolean <B>isCodeAttribute</B>()</PRE>
<DL>
<DD>Returns <tt>true</tt> if this type of attribute is a code attribute.
<P>
<DD><DL>
<DT><B>Returns:</B><DD><tt>true</tt> if this type of attribute is a code attribute.</DL>
</DD>
</DL>
<HR>
<A NAME="getLabels()"><!-- --></A><H3>
getLabels</H3>
<PRE>
protected <A HREF="../../../com/sleepycat/asm/Label.html" title="class in com.sleepycat.asm">Label</A>[] <B>getLabels</B>()</PRE>
<DL>
<DD>Returns the labels corresponding to this attribute.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the labels corresponding to this attribute, or <tt>null</tt> if
this attribute is not a code attribute that contains labels.</DL>
</DD>
</DL>
<HR>
<A NAME="read(com.sleepycat.asm.ClassReader, int, int, char[], int, com.sleepycat.asm.Label[])"><!-- --></A><H3>
read</H3>
<PRE>
protected <A HREF="../../../com/sleepycat/asm/Attribute.html" title="class in com.sleepycat.asm">Attribute</A> <B>read</B>(<A HREF="../../../com/sleepycat/asm/ClassReader.html" title="class in com.sleepycat.asm">ClassReader</A> cr,
int off,
int len,
char[] buf,
int codeOff,
<A HREF="../../../com/sleepycat/asm/Label.html" title="class in com.sleepycat.asm">Label</A>[] labels)</PRE>
<DL>
<DD>Reads a <A HREF="../../../com/sleepycat/asm/Attribute.html#type"><CODE>type</CODE></A> attribute. This method must return a <i>new</i>
<A HREF="../../../com/sleepycat/asm/Attribute.html" title="class in com.sleepycat.asm"><CODE>Attribute</CODE></A> object, of type <A HREF="../../../com/sleepycat/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.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>cr</CODE> - the class that contains the attribute to be read.<DD><CODE>off</CODE> - index of the first byte of the attribute's content in <A HREF="../../../com/sleepycat/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><CODE>len</CODE> - the length of the attribute's content.<DD><CODE>buf</CODE> - buffer to be used to call
<A HREF="../../../com/sleepycat/asm/ClassReader.html#readUTF8(int, char[])"><CODE>readUTF8</CODE></A>,
<A HREF="../../../com/sleepycat/asm/ClassReader.html#readClass(int, char[])"><CODE>readClass</CODE></A> or
<A HREF="../../../com/sleepycat/asm/ClassReader.html#readConst(int, char[])"><CODE>readConst</CODE></A>.<DD><CODE>codeOff</CODE> - index of the first byte of code's attribute content in
<A HREF="../../../com/sleepycat/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><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.
<DT><B>Returns:</B><DD>a <i>new</i> <A HREF="../../../com/sleepycat/asm/Attribute.html" title="class in com.sleepycat.asm"><CODE>Attribute</CODE></A> object corresponding to the given
bytes.</DL>
</DD>
</DL>
<HR>
<A NAME="write(com.sleepycat.asm.ClassWriter, byte[], int, int, int)"><!-- --></A><H3>
write</H3>
<PRE>
protected <A HREF="../../../com/sleepycat/asm/ByteVector.html" title="class in com.sleepycat.asm">ByteVector</A> <B>write</B>(<A HREF="../../../com/sleepycat/asm/ClassWriter.html" title="class in com.sleepycat.asm">ClassWriter</A> cw,
byte[] code,
int len,
int maxStack,
int maxLocals)</PRE>
<DL>
<DD>Returns the byte array form of this attribute.
<P>
<DD><DL>
<DT><B>Parameters:</B><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><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><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><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><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.
<DT><B>Returns:</B><DD>the byte array form of this attribute.</DL>
</DD>
</DL>
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