File	Doc	Category	Size	Date	Package
Unknown.java	API Doc	Java SE 5 API	6673	Fri Aug 26 14:55:18 BST 2005	com.sun.org.apache.bcel.internal.classfile

Unknown

• java.lang.Object
  • com.sun.org.apache.bcel.internal.classfile.Attribute

Fields Summary
private byte[]	bytes
private String	name
private static HashMap	unknown_attributes

Constructors Summary
public Unknown(Unknown c) Initialize from another object. Note that both objects use the same references (shallow copy). Use clone() for a physical copy. this(c.getNameIndex(), c.getLength(), c.getBytes(), c.getConstantPool());
public Unknown(int name_index, int length, byte[] bytes, ConstantPool constant_pool) Create a non-standard attribute. param name_index Index in constant pool param length Content length in bytes param bytes Attribute contents param constant_pool Array of constants super(Constants.ATTR_UNKNOWN, name_index, length, constant_pool); this.bytes = bytes; name = ((ConstantUtf8)constant_pool.getConstant(name_index, Constants.CONSTANT_Utf8)).getBytes(); unknown_attributes.put(name, this);
Unknown(int name_index, int length, DataInputStream file, ConstantPool constant_pool) Construct object from file stream. param name_index Index in constant pool param length Content length in bytes param file Input stream param constant_pool Array of constants throw IOException this(name_index, length, (byte [])null, constant_pool); if(length > 0) { bytes = new byte[length]; file.readFully(bytes); }

Methods Summary
public void	accept(com.sun.org.apache.bcel.internal.classfile.Visitor v) 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. param v Visitor object v.visitUnknown(this);
public com.sun.org.apache.bcel.internal.classfile.Attribute	copy(com.sun.org.apache.bcel.internal.classfile.ConstantPool constant_pool) return deep copy of this attribute Unknown c = (Unknown)clone(); if(bytes != null) c.bytes = (byte[])bytes.clone(); c.constant_pool = constant_pool; return c;
public final void	dump(java.io.DataOutputStream file) Dump unknown bytes to file stream. param file Output file stream throw IOException super.dump(file); if(length > 0) file.write(bytes, 0, length);
public final byte[]	getBytes() return data bytes. return bytes;
public final java.lang.String	getName() return name of attribute. return name;
static com.sun.org.apache.bcel.internal.classfile.Unknown[]	getUnknownAttributes() return array of unknown attributes, but just one for each kind. Unknown[] unknowns = new Unknown[unknown_attributes.size()]; Iterator entries = unknown_attributes.values().iterator(); for(int i=0; entries.hasNext(); i++) unknowns[i] = (Unknown)entries.next(); unknown_attributes.clear(); return unknowns;
public final void	setBytes(byte[] bytes) param bytes. this.bytes = bytes;
public final java.lang.String	toString() return String representation. if(length == 0 || bytes == null) return "(Unknown attribute " + name + ")"; String hex; if(length > 10) { byte[] tmp = new byte[10]; System.arraycopy(bytes, 0, tmp, 0, 10); hex = Utility.toHexString(tmp) + "... (truncated)"; } else hex = Utility.toHexString(bytes); return "(Unknown attribute " + name + ": " + hex + ")";