Enum Class ClassFile.ConstantPoolSharingOption
java.lang.Object
java.lang.Enum<ClassFile.ConstantPoolSharingOption>
java.lang.classfile.ClassFile.ConstantPoolSharingOption
- All Implemented Interfaces:
Serializable
,ClassFile.Option
,Comparable<ClassFile.ConstantPoolSharingOption>
,Constable
- Enclosing interface:
ClassFile
public static enum ClassFile.ConstantPoolSharingOption
extends Enum<ClassFile.ConstantPoolSharingOption>
implements ClassFile.Option
Option describing whether to preserve the original constant pool when
transforming a
class
file. Reusing the constant pool enables
significant optimizations in processing time and minimizes differences
between the original and transformed class
files, but may result
in a bigger transformed class
file when many elements of the
original class
file are dropped and many original constant
pool entries become unused. Default is SHARED_POOL
to preserve
the original constant pool.- Since:
- 24
- See Also:
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Nested Class Summary
Nested classes/interfaces declared in class java.lang.Enum
Enum.EnumDesc<E extends Enum<E>>
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Enum Constant Summary
Enum ConstantsEnum ConstantDescriptionCreates a new constant pool when transforming theclass
file.Preserves the original constant pool when transforming theclass
file. -
Method Summary
Modifier and TypeMethodDescriptionReturns the enum constant of this class with the specified name.static ClassFile.ConstantPoolSharingOption[]
values()
Returns an array containing the constants of this enum class, in the order they are declared.
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Enum Constant Details
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SHARED_POOL
Preserves the original constant pool when transforming theclass
file.These two transformations below are equivalent:
ClassModel originalClass = ... ClassDesc resultClassName = ... ClassTransform classTransform = ... var resultOne = ClassFile.of(ConstantPoolSharingOption.SHARED_POOL) .transformClass(originalClass, resultClassName, classTransform); var resultTwo = ClassFile.of().build(resultClassName, ConstantPoolBuilder.of(originalClass), clb -> clb.transform(originalClass, classTransform));
- See Also:
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NEW_POOL
Creates a new constant pool when transforming theclass
file.These two transformations below are equivalent:
ClassModel originalClass = ... ClassDesc resultClassName = ... ClassTransform classTransform = ... var resultOne = ClassFile.of(ConstantPoolSharingOption.NEW_POOL) .transformClass(originalClass, resultClassName, classTransform); var resultTwo = ClassFile.of().build(resultClassName, ConstantPoolBuilder.of(), clb -> clb.transform(originalClass, classTransform));
- See Also:
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Method Details
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values
Returns an array containing the constants of this enum class, in the order they are declared.- Returns:
- an array containing the constants of this enum class, in the order they are declared
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valueOf
Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)- Parameters:
name
- the name of the enum constant to be returned.- Returns:
- the enum constant with the specified name
- Throws:
IllegalArgumentException
- if this enum class has no constant with the specified nameNullPointerException
- if the argument is null
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