Top Description Fields Constructors Methods
javassist.bytecode

public final Class ConstPool

Additional top-level classes in compilation unit: ConstInfo, ConstInfoPadding, ClassInfo, NameAndTypeInfo, MemberrefInfo, FieldrefInfo, MethodrefInfo, InterfaceMethodrefInfo, StringInfo, IntegerInfo, FloatInfo, LongInfo, DoubleInfo, Utf8Info, MethodHandleInfo, MethodTypeInfo, InvokeDynamicInfo, DynamicInfo, ModuleInfo, PackageInfo.

extends Object
Class Inheritance
Imports
java.io.ByteArrayOutputStream, .DataInputStream, .DataOutputStream, .IOException, .PrintWriter, java.util.HashMap, .HashSet, .Map, .Set, javassist.CtClass
Constant pool table.

Field Summary

Modifier and TypeField and Description
public static final int
CONST_Class

CONSTANT_Class

public static final int
CONST_Double

CONSTANT_Double

public static final int
CONST_Dynamic

CONSTANT_Dynamic

public static final int
CONST_DynamicCallSite

CONSTANT_DynamicCallSite, also known as CONSTANT_InvokeDynamic

public static final int
CONST_Fieldref

CONSTANT_Fieldref

public static final int
CONST_Float

CONSTANT_Float

public static final int
CONST_Integer

CONSTANT_Integer

public static final int
CONST_InterfaceMethodref

CONSTANT_InterfaceMethodref

public static final int
CONST_InvokeDynamic

public static final int
CONST_Long

CONSTANT_Long

public static final int
CONST_MethodHandle

CONSTANT_MethodHandle

public static final int
CONST_Methodref

CONSTANT_Methodref

public static final int
CONST_MethodType

CONSTANT_MethodHandle

public static final int
CONST_Module

CONSTANT_Module

public static final int
CONST_NameAndType

CONSTANT_NameAndType

public static final int
CONST_Package

CONSTANT_Package

public static final int
CONST_String

CONSTANT_String

public static final int
CONST_Utf8

CONSTANT_Utf8

pack-priv LongVector
items

pack-priv Map<ConstInfo, ConstInfo>
itemsCache

pack-priv int
numOfItems

public static final int
REF_getField

reference_kind of CONSTANT_MethodHandle_info.

public static final int
REF_getStatic

reference_kind of CONSTANT_MethodHandle_info.

public static final int
REF_invokeInterface

reference_kind of CONSTANT_MethodHandle_info.

public static final int
REF_invokeSpecial

reference_kind of CONSTANT_MethodHandle_info.

public static final int
REF_invokeStatic

reference_kind of CONSTANT_MethodHandle_info.

public static final int
REF_invokeVirtual

reference_kind of CONSTANT_MethodHandle_info.

public static final int
REF_newInvokeSpecial

reference_kind of CONSTANT_MethodHandle_info.

public static final int
REF_putField

reference_kind of CONSTANT_MethodHandle_info.

public static final int
REF_putStatic

reference_kind of CONSTANT_MethodHandle_info.

public static final CtClass
THIS

Represents the class using this constant pool table.

pack-priv int
thisClassInfo

Constructor Summary

AccessConstructor and Description
public
ConstPool(String
the name of the class using this constant pool table
thisclass)

Constructs a constant pool table.

public
ConstPool(DataInputStream
byte stream.
in)

Constructs a constant pool table from the given byte stream.

Method Summary

Modifier and TypeMethod and Description
public int

Returns:

the index of the added entry.
addClassInfo(CtClass c)

Adds a new CONSTANT_Class_info structure.

public int

Returns:

the index of the added entry.
addClassInfo(String
a fully-qualified class name (or the JVM-internal representation of that name).
qname)

Adds a new CONSTANT_Class_info structure.

pack-priv int
addConstInfoPadding()

public int

Returns:

the index of the added entry.
addDoubleInfo(double d)

Adds a new CONSTANT_Double_info structure.

public int

Returns:

the index of the added entry.
addDynamicInfo(int
bootstrap_method_attr_index.
bootstrap, int
name_and_type_index.
nameAndType)

Adds a new CONSTANT_Dynamic_info structure.

public int

Returns:

the index of the added entry.
addFieldrefInfo(int
class_index
classInfo, String
name_index of CONSTANT_NameAndType_info.
name, String
descriptor_index of CONSTANT_NameAndType_info.
type)

Adds a new CONSTANT_Fieldref_info structure.

public int

Returns:

the index of the added entry.
addFieldrefInfo(int
class_index
classInfo, int
name_and_type_index.
nameAndTypeInfo)

Adds a new CONSTANT_Fieldref_info structure.

public int

Returns:

the index of the added entry.
addFloatInfo(float f)

Adds a new CONSTANT_Float_info structure.

public int

Returns:

the index of the added entry.
addIntegerInfo(int i)

Adds a new CONSTANT_Integer_info structure.

public int

Returns:

the index of the added entry.
addInterfaceMethodrefInfo(int
class_index
classInfo, String
name_index of CONSTANT_NameAndType_info.
name, String
descriptor_index of CONSTANT_NameAndType_info.
type)

Adds a new CONSTANT_InterfaceMethodref_info structure.

public int

Returns:

the index of the added entry.
addInterfaceMethodrefInfo(int
class_index
classInfo, int
name_and_type_index.
nameAndTypeInfo)

Adds a new CONSTANT_InterfaceMethodref_info structure.

public int

Returns:

the index of the added entry.
addInvokeDynamicInfo(int
bootstrap_method_attr_index.
bootstrap, int
name_and_type_index.
nameAndType)

Adds a new CONSTANT_InvokeDynamic_info structure.

private int
addItem(ConstInfo info)

private int
addItem0(ConstInfo info)

public int

Returns:

the index of the added entry.
addLongInfo(long l)

Adds a new CONSTANT_Long_info structure.

public int

Returns:

the index of the added entry.
addMethodHandleInfo(int
reference_kind such as REF_invokeStatic.
kind, int
reference_index.
index)

Adds a new CONSTANT_MethodHandle_info structure.

public int

Returns:

the index of the added entry.
addMethodrefInfo(int
class_index
classInfo, String
name_index of CONSTANT_NameAndType_info.
name, String
descriptor_index of CONSTANT_NameAndType_info.
type)

Adds a new CONSTANT_Methodref_info structure.

public int

Returns:

the index of the added entry.
addMethodrefInfo(int
class_index
classInfo, int
name_and_type_index.
nameAndTypeInfo)

Adds a new CONSTANT_Methodref_info structure.

public int

Returns:

the index of the added entry.
addMethodTypeInfo(int
descriptor_index.
desc)

Adds a new CONSTANT_MethodType_info structure.

public int

Returns:

the index of the added entry.
addModuleInfo(int
the index of the Utf8 entry.
nameIndex)

Adds a new CONSTANT_Module_info

public int

Returns:

the index of the added entry.
addNameAndTypeInfo(String
name_index
name, String
descriptor_index
type)

Adds a new CONSTANT_NameAndType_info structure.

public int

Returns:

the index of the added entry.
addNameAndTypeInfo(int
name_index
name, int
descriptor_index
type)

Adds a new CONSTANT_NameAndType_info structure.

public int

Returns:

the index of the added entry.
addPackageInfo(int
the index of the Utf8 entry.
nameIndex)

Adds a new CONSTANT_Package_info

public int

Returns:

the index of the added entry.
addStringInfo(String str)

Adds a new CONSTANT_String_info structure.

public int

Returns:

the index of the added entry.
addUtf8Info(String utf8)

Adds a new CONSTANT_Utf8_info structure.

public int

Returns:

the index of the copied item into the destination ClassPool.
copy(int
the n-th item
n, ConstPool
destination constant pool table
dest, Map<String, String>
the map or null.
classnames)

Copies the n-th item in this ConstPool object into the destination ConstPool object.

public String

Returns:

the name of the target class specified by the ..._info structure at index. Otherwise, null if that structure does not match the given member name and descriptor.
eqMember(String
the member name
membername, String
the descriptor of the member.
desc, int
the index into the constant pool table
index)

Determines whether CONSTANT_Methodref_info, CONSTANT_Fieldref_info, or CONSTANT_InterfaceMethodref_info structure at the given index has the name and the descriptor given as the arguments.

public String

Returns:

a fully-qualified class or interface name specified by name_index. If the type is an array type, this method returns an encoded name like [Ljava.lang.Object; (note that the separators are not slashes but dots).
getClassInfo(int index)

Reads CONSTANT_Class_info structure at the given index.

public String

Returns:

the descriptor of the type specified by name_index.
getClassInfoByDescriptor(int index)

Reads CONSTANT_Class_info structure at the given index.

public String
getClassName()

Returns the name of the class using this constant pool table.

public Set<String>

Returns:

a set of class names (String objects).
getClassNames()

Get all the class names.

public double

Returns:

the value specified by this entry.
getDoubleInfo(int index)

Reads CONSTANT_Double_info structure at the given index.

public int
getDynamicBootstrap(int index)

Reads the bootstrap_method_attr_index field of the CONSTANT_Dynamic_info structure at the given index.

public int
getDynamicNameAndType(int index)

Reads the name_and_type_index field of the CONSTANT_Dynamic_info structure at the given index.

public String

Returns:

the descriptor of the bootstrap method.
getDynamicType(int
an index to a CONSTANT_Dynamic_info.
index)

Reads the descriptor_index field of the CONSTANT_NameAndType_info structure indirectly specified by the given index.

public int
getFieldrefClass(int index)

Reads the class_index field of the CONSTANT_Fieldref_info structure at the given index.

public String

Returns:

the name of the class at that class_index.
getFieldrefClassName(int index)

Reads the class_index field of the CONSTANT_Fieldref_info structure at the given index.

public String

Returns:

the name of the field.
getFieldrefName(int
an index to a CONSTANT_Fieldref_info.
index)

Reads the name_index field of the CONSTANT_NameAndType_info structure indirectly specified by the given index.

public int
getFieldrefNameAndType(int index)

Reads the name_and_type_index field of the CONSTANT_Fieldref_info structure at the given index.

public String

Returns:

the type descriptor of the field.
getFieldrefType(int
an index to a CONSTANT_Fieldref_info.
index)

Reads the descriptor_index field of the CONSTANT_NameAndType_info structure indirectly specified by the given index.

public float

Returns:

the value specified by this entry.
getFloatInfo(int index)

Reads CONSTANT_Float_info structure at the given index.

public int

Returns:

the value specified by this entry.
getIntegerInfo(int index)

Reads CONSTANT_Integer_info structure at the given index.

public int
getInterfaceMethodrefClass(int index)

Reads the class_index field of the CONSTANT_InterfaceMethodref_info structure at the given index.

public String

Returns:

the name of the class at that class_index.
getInterfaceMethodrefClassName(int index)

Reads the class_index field of the CONSTANT_InterfaceMethodref_info structure at the given index.

public String

Returns:

the name of the method.
getInterfaceMethodrefName(int
an index to a CONSTANT_InterfaceMethodref_info.
index)

Reads the name_index field of the CONSTANT_NameAndType_info structure indirectly specified by the given index.

public int
getInterfaceMethodrefNameAndType(int index)

Reads the name_and_type_index field of the CONSTANT_InterfaceMethodref_info structure at the given index.

public String

Returns:

the descriptor of the method.
getInterfaceMethodrefType(int
an index to a CONSTANT_InterfaceMethodref_info.
index)

Reads the descriptor_index field of the CONSTANT_NameAndType_info structure indirectly specified by the given index.

public int
getInvokeDynamicBootstrap(int index)

Reads the bootstrap_method_attr_index field of the CONSTANT_InvokeDynamic_info structure at the given index.

public int
getInvokeDynamicNameAndType(int index)

Reads the name_and_type_index field of the CONSTANT_InvokeDynamic_info structure at the given index.

public String

Returns:

the descriptor of the bootstrap method.
getInvokeDynamicType(int
an index to a CONSTANT_InvokeDynamic_info.
index)

Reads the descriptor_index field of the CONSTANT_NameAndType_info structure indirectly specified by the given index.

pack-priv ConstInfo
getItem(int n)

public Object

Returns:

a String value or a wrapped primitive-type value.
getLdcValue(int index)

Reads CONSTANT_Integer_info, _Float_info, _Long_info, _Double_info, or _String_info structure.

public long

Returns:

the value specified by this entry.
getLongInfo(int index)

Reads CONSTANT_Long_info structure at the given index.

public int
getMemberClass(int index)

Reads the class_index field of the CONSTANT_Fieldref_info, CONSTANT_Methodref_info, or CONSTANT_Interfaceref_info, structure at the given index.

public int
getMemberNameAndType(int index)

Reads the name_and_type_index field of the CONSTANT_Fieldref_info, CONSTANT_Methodref_info, or CONSTANT_Interfaceref_info, structure at the given index.

public int
getMethodHandleIndex(int index)

Reads the reference_index field of the CONSTANT_MethodHandle_info structure at the given index.

public int
getMethodHandleKind(int index)

Reads the reference_kind field of the CONSTANT_MethodHandle_info structure at the given index.

public int
getMethodrefClass(int index)

Reads the class_index field of the CONSTANT_Methodref_info structure at the given index.

public String

Returns:

the name of the class at that class_index.
getMethodrefClassName(int index)

Reads the class_index field of the CONSTANT_Methodref_info structure at the given index.

public String

Returns:

the name of the method.
getMethodrefName(int
an index to a CONSTANT_Methodref_info.
index)

Reads the name_index field of the CONSTANT_NameAndType_info structure indirectly specified by the given index.

public int
getMethodrefNameAndType(int index)

Reads the name_and_type_index field of the CONSTANT_Methodref_info structure at the given index.

public String

Returns:

the descriptor of the method.
getMethodrefType(int
an index to a CONSTANT_Methodref_info.
index)

Reads the descriptor_index field of the CONSTANT_NameAndType_info structure indirectly specified by the given index.

public int
getMethodTypeInfo(int index)

Reads the descriptor_index field of the CONSTANT_MethodType_info structure at the given index.

public String

Returns:

the module name at name_index.
getModuleInfo(int index)

Reads the name_index field of the CONSTANT_Module_info structure at the given index.

public int
getNameAndTypeDescriptor(int index)

Reads the descriptor_index field of the CONSTANT_NameAndType_info structure at the given index.

public int
getNameAndTypeName(int index)

Reads the name_index field of the CONSTANT_NameAndType_info structure at the given index.

public String

Returns:

the package name at name_index. It is a slash- separated name such as com/oracle/net.
getPackageInfo(int index)

Reads the name_index field of the CONSTANT_Package_info structure at the given index.

public int
getSize()

Returns the number of entries in this table.

public String

Returns:

the string specified by string_index.
getStringInfo(int index)

Reads CONSTANT_String_info structure at the given index.

public int

Returns:

either CONST_Class, CONST_Fieldref, CONST_Methodref, or ...
getTag(int index)

Returns the tag field of the constant pool table entry at the given index.

public int
getThisClassInfo()

Returns the index of CONSTANT_Class_info structure specifying the class using this constant pool table.

public String

Returns:

the string specified by this entry.
getUtf8Info(int index)

Reads CONSTANT_utf8_info structure at the given index.

public int

Returns:

the descriptor_index specifying the type descriptor of the that constructor. If it is not that constructor, isConstructor() returns 0.
isConstructor(String classname, int index)

Determines whether CONSTANT_Methodref_info structure at the given index represents the constructor of the given class.

public int

Returns:

the descriptor_index specifying the type descriptor of that member. If it is not that member, isMember() returns 0.
isMember(String
the class declaring the member
classname, String
the member name
membername, int
the index into the constant pool table
index)

Determines whether CONSTANT_Methodref_info, CONSTANT_Fieldref_info, or CONSTANT_InterfaceMethodref_info structure at the given index represents the member with the specified name and declaring class.

private static Map<ConstInfo, ConstInfo>
makeItemsCache(LongVector items)

pack-priv void
prune()

private void
read(DataInputStream in)

private int
readOne(DataInputStream in)

public void
renameClass(String
the replaced name (JVM-internal representation).
oldName, String
the substituted name (JVM-internal representation).
newName)

Replaces all occurrences of a class name.

public void
renameClass(Map<String, String>
specifies pairs of replaced and substituted name.
classnames)

Replaces all occurrences of class names.

pack-priv void
setThisClassInfo(int i)

public void
write(DataOutputStream out)

Writes the contents of the constant pool table.

Inherited from java.lang.Object:
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