OpenJDK 27 · jdk.internal.classfile.impl.DirectClassBuilder

Field Summary

Modifier and Type	Field and Description
pack-priv static final int	DEFAULT_CLASS_FLAGS The value of default class access flags
pack-priv static final ClassEntry[]	EMPTY_CLASS_ENTRY_ARRAY
pack-priv static final Util.Writable[]	EMPTY_WRITABLE_ARRAY
private Util.Writable[]	fields
private int	fieldsCount
private int	flags
private List<ClassEntry>	interfaceEntries
private int	majorVersion
private Util.Writable[]	methods
private int	methodsCount
private int	minorVersion
private int	sizeHint
private ClassEntry	superclassEntry
pack-priv final ClassEntry	thisClassEntry

Inherited from jdk.internal.classfile.impl.AbstractDirectBuilder:: attributes constantPool context original

Constructor Summary

Access	Constructor and Description
public	DirectClassBuilder(SplitConstantPool constantPool, ClassFileImpl context, ClassEntry thisClass)

Method Summary

Modifier and Type	Method and Description
public byte[]	build()
private ClassEntry[]	buildInterfaceEnties(int interfaceEntriesSize)
pack-priv void	setFlags(int flags)
pack-priv void	setInterfaces(List<ClassEntry> interfaces)
public void	setSizeHint(int sizeHint)
pack-priv void	setSuperclass(ClassEntry superclassEntry)
pack-priv void	setVersion(int major, int minor)
public ClassBuilder	transformField(FieldModel field, FieldTransform transform) Implements java.lang.classfile.ClassBuilder.transformField. Adds a field by transforming a field from another class.
public ClassBuilder	transformMethod(MethodModel method, MethodTransform transform) Implements java.lang.classfile.ClassBuilder.transformMethod. Adds a method by transforming a method from another class.
public ClassBuilder	with(ClassElement element) Implements java.lang.classfile.ClassFileBuilder.with. Integrates the member element into the structure being built.
public ClassBuilder	withField(Utf8Entry name, Utf8Entry descriptor, int flags) Overrides default java.lang.classfile.ClassBuilder.withField. Adds a field, with only access flags.
public ClassBuilder	withField(Utf8Entry name, Utf8Entry descriptor, Consumer<? super FieldBuilder> handler) Implements java.lang.classfile.ClassBuilder.withField. Adds a field.
pack-priv ClassBuilder	withField(Util.Writable field)
public ClassBuilder	withFlags(int flags) Overrides default java.lang.classfile.ClassBuilder.withFlags. Sets the access flags of this class.
public ClassBuilder	withMethod(Utf8Entry name, Utf8Entry descriptor, int flags, Consumer<? super MethodBuilder> handler) Implements java.lang.classfile.ClassBuilder.withMethod. Adds a method.
pack-priv ClassBuilder	withMethod(Util.Writable method)

Inherited from jdk.internal.classfile.impl.AbstractDirectBuilder:: canWriteDirect constantPool setOriginal writeAttribute

Field Detail

DEFAULT_CLASS_FLAGS	back to summary
pack-priv static final int DEFAULT_CLASS_FLAGS The value of default class access flags

EMPTY_CLASS_ENTRY_ARRAY	back to summary
pack-priv static final ClassEntry[] EMPTY_CLASS_ENTRY_ARRAY

EMPTY_WRITABLE_ARRAY	back to summary
pack-priv static final Util.Writable[] EMPTY_WRITABLE_ARRAY

fields	back to summary
private Util.Writable[] fields

fieldsCount	back to summary
private int fieldsCount

flags	back to summary
private int flags

interfaceEntries	back to summary
private List<ClassEntry> interfaceEntries

majorVersion	back to summary
private int majorVersion

methods	back to summary
private Util.Writable[] methods

methodsCount	back to summary
private int methodsCount

minorVersion	back to summary
private int minorVersion

sizeHint	back to summary
private int sizeHint

superclassEntry	back to summary
private ClassEntry superclassEntry

thisClassEntry	back to summary
pack-priv final ClassEntry thisClassEntry

Constructor Detail

DirectClassBuilder	back to summary
public DirectClassBuilder(SplitConstantPool constantPool, ClassFileImpl context, ClassEntry thisClass)

Method Detail

build	back to summary
public byte[] build()

buildInterfaceEnties	back to summary
private ClassEntry[] buildInterfaceEnties(int interfaceEntriesSize)

setFlags	back to summary
pack-priv void setFlags(int flags)

setInterfaces	back to summary
pack-priv void setInterfaces(List<ClassEntry> interfaces)

setSizeHint	back to summary
public void setSizeHint(int sizeHint)

setSuperclass	back to summary
pack-priv void setSuperclass(ClassEntry superclassEntry)

setVersion	back to summary
pack-priv void setVersion(int major, int minor)

transformField back to summary

transformField	back to summary
public ClassBuilder transformField(FieldModel field, FieldTransform transform) Implements java.lang.classfile.ClassBuilder.transformField. Doc from java.lang.classfile.ClassBuilder.transformField. Adds a field by transforming a field from another class. This method behaves as if: `withField(field.fieldName(), field.fieldType(), fb -> fb.transform(field, transform))` withField(field.fieldName(), field.fieldType(), fb -> fb.transform(field, transform)) Annotations @Override

public ClassBuilder transformField(FieldModel field, FieldTransform transform)

Implements java.lang.classfile.ClassBuilder.transformField.

Doc from java.lang.classfile.ClassBuilder.transformField.

Adds a field by transforming a field from another class.

This method behaves as if:

withField(field.fieldName(), field.fieldType(),
          fb -> fb.transform(field, transform))

Annotations

@Override

transformMethod back to summary

transformMethod	back to summary
public ClassBuilder transformMethod(MethodModel method, MethodTransform transform) Implements java.lang.classfile.ClassBuilder.transformMethod. Doc from java.lang.classfile.ClassBuilder.transformMethod. Adds a method by transforming a method from another class. The transform cannot modify the `ACC_STATIC` flag of the original method. This method behaves as if: `withMethod(method.methodName(), method.methodType(), method.flags().flagMask(), mb -> mb.transform(method, transform))` withMethod(method.methodName(), method.methodType(), method.flags().flagMask(), mb -> mb.transform(method, transform)) Annotations @Override

public ClassBuilder transformMethod(MethodModel method, MethodTransform transform)

Implements java.lang.classfile.ClassBuilder.transformMethod.

Doc from java.lang.classfile.ClassBuilder.transformMethod.

Adds a method by transforming a method from another class. The transform cannot modify the ACC_STATIC flag of the original method.

This method behaves as if:

withMethod(method.methodName(), method.methodType(), method.flags().flagMask(),
           mb -> mb.transform(method, transform))

Annotations

@Override

with	back to summary
public ClassBuilder with(ClassElement element) Implements java.lang.classfile.ClassFileBuilder.with. Doc from java.lang.classfile.ClassFileBuilder.with. Integrates the member element into the structure being built. Annotations @Override

with

back to summary

public ClassBuilder with(ClassElement element)

Implements java.lang.classfile.ClassFileBuilder.with.

Doc from java.lang.classfile.ClassFileBuilder.with.

Integrates the member element into the structure being built.

Annotations

@Override

withField	back to summary
public ClassBuilder withField(Utf8Entry name, Utf8Entry descriptor, int flags) Overrides default java.lang.classfile.ClassBuilder.withField. Doc from java.lang.classfile.ClassBuilder.withField. Adds a field, with only access flags. Annotations @Override

withField

back to summary

public ClassBuilder withField(Utf8Entry name, Utf8Entry descriptor, int flags)

Overrides default java.lang.classfile.ClassBuilder.withField.

Doc from java.lang.classfile.ClassBuilder.withField.

Adds a field, with only access flags.

Annotations

@Override

withField	back to summary
public ClassBuilder withField(Utf8Entry name, Utf8Entry descriptor, Consumer<? super FieldBuilder> handler) Implements java.lang.classfile.ClassBuilder.withField. Doc from java.lang.classfile.ClassBuilder.withField. Adds a field. Annotations @Override

withField

back to summary

public ClassBuilder withField(Utf8Entry name, Utf8Entry descriptor, Consumer<? super FieldBuilder> handler)

Implements java.lang.classfile.ClassBuilder.withField.

Doc from java.lang.classfile.ClassBuilder.withField.

Adds a field.

Annotations

@Override

withField	back to summary
pack-priv ClassBuilder withField(Util.Writable field)

withFlags	back to summary
public ClassBuilder withFlags(int flags) Overrides default java.lang.classfile.ClassBuilder.withFlags. Doc from java.lang.classfile.ClassBuilder.withFlags. Sets the access flags of this class. Annotations @Override

withFlags

back to summary

public ClassBuilder withFlags(int flags)

Overrides default java.lang.classfile.ClassBuilder.withFlags.

Doc from java.lang.classfile.ClassBuilder.withFlags.

Sets the access flags of this class.

Annotations

@Override

withMethod back to summary

withMethod	back to summary
public ClassBuilder withMethod(Utf8Entry name, Utf8Entry descriptor, int flags, Consumer<? super MethodBuilder> handler) Implements java.lang.classfile.ClassBuilder.withMethod. Doc from java.lang.classfile.ClassBuilder.withMethod. Adds a method. The bit for `ACC_STATIC` flag cannot be modified by the `handler` later, and must be set through `methodFlags`. Annotations @Override

public ClassBuilder withMethod(Utf8Entry name, Utf8Entry descriptor, int flags, Consumer<? super MethodBuilder> handler)

Implements java.lang.classfile.ClassBuilder.withMethod.

Doc from java.lang.classfile.ClassBuilder.withMethod.

Adds a method. The bit for ACC_STATIC flag cannot be modified by the handler later, and must be set through methodFlags.

Annotations

@Override

withMethod	back to summary
pack-priv ClassBuilder withMethod(Util.Writable method)

public final Class DirectClassBuilder

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail