Top Description Fields Constructors Methods
org.apache.derby.iapi.services.classfile

public final Class CONSTANT_Index_info

extends ConstantPoolEntry
Class Inheritance
Imports
org.apache.derby.iapi.services.classfile.VMDescriptor, java.io.IOException

A generic constant pool entry for entries that simply hold indexes into other entries.
Ref Constant Pool Entry - page 94 - Section 4.4.2 - Two indexes
NameAndType Constant Pool Entry - page 99 - Section 4.4.6 - Two indexes
String Constant Pool Entry - page 96 - Section 4.4.3 - One index
Class Reference Constant Pool Entry - page 93 - Section 4.4.1 - One index

Field Summary

Modifier and TypeField and Description
private int
private int
Inherited from org.apache.derby.iapi.services.classfile.ConstantPoolEntry:
doubleSlotindextag

Constructor Summary

AccessConstructor and Description
pack-priv
CONSTANT_Index_info(int tag, int i1, int i2)

Method Summary

Modifier and TypeMethod and Description
pack-priv int
classFileSize()

Implements abstract org.apache.derby.iapi.services.classfile.ConstantPoolEntry.classFileSize.

Return an estimate of the size of the constant pool entry.

public boolean
equals(Object
the reference object with which to compare.
other
)

Overrides java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

public int
getI1()

Overrides org.apache.derby.iapi.services.classfile.ConstantPoolEntry.getI1.

Get the first index in a index type pool entry.

public int
getI2()

Overrides org.apache.derby.iapi.services.classfile.ConstantPoolEntry.getI2.

Get the second index in a index type pool entry.

public int
hashCode()

Overrides java.lang.Object.hashCode.

Returns a hash code value for this object.

pack-priv void
pack-priv void
set(int tag, int i1, int i2)

Used when searching

Inherited from org.apache.derby.iapi.services.classfile.ConstantPoolEntry:
doubleSlotgetIndexgetKeygetTagsetIndex

Field Detail

i1back to summary
private int i1
i2back to summary
private int i2

Constructor Detail

CONSTANT_Index_infoback to summary
pack-priv CONSTANT_Index_info(int tag, int i1, int i2)

Method Detail

classFileSizeback to summary
pack-priv int classFileSize()

Implements abstract org.apache.derby.iapi.services.classfile.ConstantPoolEntry.classFileSize.

Doc from org.apache.derby.iapi.services.classfile.ConstantPoolEntry.classFileSize.

Return an estimate of the size of the constant pool entry.

equalsback to summary
public boolean equals(Object other)

Overrides java.lang.Object.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

  • It is reflexive: for any non-null reference value x, x.equals(x) should return true.
  • It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
  • It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
  • It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
  • For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters
other:Object

the reference object with which to compare.

Returns:boolean

true if this object is the same as the obj argument; false otherwise.

getI1back to summary
public int getI1()

Overrides org.apache.derby.iapi.services.classfile.ConstantPoolEntry.getI1.

Doc from org.apache.derby.iapi.services.classfile.ConstantPoolEntry.getI1.

Get the first index in a index type pool entry. This call is valid when getTag() returns one of

  • CONSTANT_Class
  • CONSTANT_Fieldref
  • CONSTANT_Methodref
  • CONSTANT_InterfaceMethodref
  • CONSTANT_String
  • CONSTANT_NameAndType
getI2back to summary
public int getI2()

Overrides org.apache.derby.iapi.services.classfile.ConstantPoolEntry.getI2.

Doc from org.apache.derby.iapi.services.classfile.ConstantPoolEntry.getI2.

Get the second index in a index type pool entry. This call is valid when getTag() returns one of

  • CONSTANT_Fieldref
  • CONSTANT_Methodref
  • CONSTANT_InterfaceMethodref
  • CONSTANT_NameAndType
hashCodeback to summary
public int hashCode()

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for this object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

  • Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
  • If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
  • It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.
Returns:int

a hash code value for this object

putback to summary
pack-priv void put(ClassFormatOutput out) throws IOException

Overrides org.apache.derby.iapi.services.classfile.ConstantPoolEntry.put.

setback to summary
pack-priv void set(int tag, int i1, int i2)

Used when searching