Package org.apache.bcel.classfile
Class Constant
java.lang.Object
org.apache.bcel.classfile.Constant
- Direct Known Subclasses:
ConstantClass,ConstantCP,ConstantDouble,ConstantFloat,ConstantInteger,ConstantLong,ConstantMethodHandle,ConstantMethodType,ConstantModule,ConstantNameAndType,ConstantPackage,ConstantString,ConstantUtf8
Abstract superclass for classes to represent the different constant types in the constant pool of a class file. The
classes keep closely to the JVM specification.
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Field Summary
FieldsModifier and TypeFieldDescriptionprotected byteDeprecated.(since 6.0) will be made private; do not access directly, use getter/setter -
Method Summary
Modifier and TypeMethodDescriptionabstract voidCalled by objects that are traversing the nodes of the tree implicitly defined by the contents of a Java class.clone()copy()abstract voiddump(DataOutputStream file) booleanReturns value as defined by given BCELComparator strategy.static BCELComparator<Constant>final bytegetTag()inthashCode()Returns value as defined by given BCELComparator strategy.static ConstantreadConstant(DataInput dataInput) Reads one constant from the given input, the type depends on a tag byte.static voidsetComparator(BCELComparator<Constant> comparator) toString()
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Field Details
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tag
Deprecated.(since 6.0) will be made private; do not access directly, use getter/setter
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Method Details
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getComparator
- Returns:
- Comparison strategy object.
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readConstant
Reads one constant from the given input, the type depends on a tag byte.- Parameters:
dataInput- Input stream- Returns:
- Constant object
- Throws:
IOException- if an I/O error occurs reading from the givendataInput.ClassFormatException- if the next byte is not recognized- Since:
- 6.0 made public
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setComparator
- Parameters:
comparator- Comparison strategy object
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accept
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. -
clone
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copy
- Returns:
- deep copy of this constant
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dump
- Throws:
IOException
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equals
Returns value as defined by given BCELComparator strategy. By default two Constant objects are said to be equal when the result of toString() is equal. -
getTag
- Returns:
- Tag of constant, i.e., its type. No setTag() method to avoid confusion.
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hashCode
Returns value as defined by given BCELComparator strategy. By default return the hash code of the result of toString(). -
toString
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