Package org.apache.bcel.classfile
Class ConstantValue
- java.lang.Object
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- org.apache.bcel.classfile.Attribute
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- org.apache.bcel.classfile.ConstantValue
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- All Implemented Interfaces:
java.lang.Cloneable
,Node
public final class ConstantValue extends Attribute
This class is derived from Attribute and represents a constant value, i.e., a default value for initializing a class field. This class is instantiated by the Attribute.readAttribute() method.ConstantValue_attribute { u2 attribute_name_index; u4 attribute_length; u2 constantvalue_index; }
- See Also:
Attribute
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Field Summary
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Fields inherited from class org.apache.bcel.classfile.Attribute
constant_pool, EMPTY_ARRAY, length, name_index, tag
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Constructor Summary
Constructors Constructor Description ConstantValue(int nameIndex, int length, int constantValueIndex, ConstantPool constantPool)
ConstantValue(ConstantValue c)
Initialize from another object.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
accept(Visitor v)
Called by objects that are traversing the nodes of the tree implicitly defined by the contents of a Java class.Attribute
copy(ConstantPool constantPool)
void
dump(java.io.DataOutputStream file)
Dump constant value attribute to file stream on binary format.int
getConstantValueIndex()
void
setConstantValueIndex(int constantValueIndex)
java.lang.String
toString()
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Methods inherited from class org.apache.bcel.classfile.Attribute
addAttributeReader, addAttributeReader, clone, getConstantPool, getLength, getName, getNameIndex, getTag, println, readAttribute, readAttribute, removeAttributeReader, setConstantPool, setLength, setNameIndex
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Constructor Detail
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ConstantValue
public ConstantValue(ConstantValue c)
Initialize from another object. Note that both objects use the same references (shallow copy). Use clone() for a physical copy.- Parameters:
c
- Source to copy.
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ConstantValue
public ConstantValue(int nameIndex, int length, int constantValueIndex, ConstantPool constantPool)
- Parameters:
nameIndex
- Name index in constant poollength
- Content length in bytesconstantValueIndex
- Index in constant poolconstantPool
- Array of constants
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Method Detail
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accept
public void accept(Visitor v)
Called by objects that are traversing the nodes of the tree implicitly defined by the contents of a Java class. I.e., the hierarchy of methods, fields, attributes, etc. spawns a tree of objects.
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copy
public Attribute copy(ConstantPool constantPool)
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dump
public void dump(java.io.DataOutputStream file) throws java.io.IOException
Dump constant value attribute to file stream on binary format.
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getConstantValueIndex
public int getConstantValueIndex()
- Returns:
- Index in constant pool of constant value.
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setConstantValueIndex
public void setConstantValueIndex(int constantValueIndex)
- Parameters:
constantValueIndex
- the index info the constant pool of this constant value
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