Package org.apache.bcel.classfile
Class ConstantValue
java.lang.Object
org.apache.bcel.classfile.Attribute
org.apache.bcel.classfile.ConstantValue
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.
- See Also:
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Field Summary
FieldsFields inherited from class org.apache.bcel.classfile.Attribute
constant_pool, length, name_index, tag
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Constructor Summary
ConstructorsConstructorDescriptionConstantValue
(int name_index, int length, int constantvalue_index, ConstantPool constant_pool) ConstantValue
(int name_index, int length, DataInput input, ConstantPool constant_pool) Construct object from input stream.Initialize from another object. -
Method Summary
Modifier and TypeMethodDescriptionvoid
Called by objects that are traversing the nodes of the tree implicitely defined by the contents of a Java class.copy
(ConstantPool _constant_pool) void
dump
(DataOutputStream file) Dump constant value attribute to file stream on binary format.int
void
setConstantValueIndex
(int constantvalue_index) toString()
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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Field Details
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constantvalue_index
private int constantvalue_index
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Constructor Details
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ConstantValue
Initialize from another object. Note that both objects use the same references (shallow copy). Use clone() for a physical copy. -
ConstantValue
ConstantValue(int name_index, int length, DataInput input, ConstantPool constant_pool) throws IOException Construct object from input stream.- Parameters:
name_index
- Name index in constant poollength
- Content length in bytesinput
- Input streamconstant_pool
- Array of constants- Throws:
IOException
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ConstantValue
public ConstantValue(int name_index, int length, int constantvalue_index, ConstantPool constant_pool) - Parameters:
name_index
- Name index in constant poollength
- Content length in bytesconstantvalue_index
- Index in constant poolconstant_pool
- Array of constants
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Method Details
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accept
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. -
dump
Dump constant value attribute to file stream on binary format.- Overrides:
dump
in classAttribute
- Parameters:
file
- Output file stream- Throws:
IOException
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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 constantvalue_index) - Parameters:
constantvalue_index
- the index info the constant pool of this constant value
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toString
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copy
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