org.apache.bcel.classfile

## Class ModulePackages

- java.lang.Object
- - org.apache.bcel.classfile.Attribute
  - - org.apache.bcel.classfile.ModulePackages

- All Implemented Interfaces:
    Cloneable, Node

      public final class ModulePackages
      extends Attribute

  This class is derived from Attribute and represents the list of packages that are exported or opened by the Module attribute. There may be at most one ModulePackages attribute in a ClassFile structure.
  See Also:
    `Attribute`

- - ### Field Summary

    - ### Fields inherited from class org.apache.bcel.classfile.Attribute

      `constant_pool, EMPTY_ARRAY, length, name_index, tag`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `ModulePackages(int nameIndex, int length, int[] packageIndexTable, ConstantPool constantPool)`
    `ModulePackages(ModulePackages c)` Initialize from another object.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `accept(Visitor v)` Called by objects that are traversing the nodes of the tree implicitly defined by the contents of a Java class.
    `Attribute` | `copy(ConstantPool constantPool)`
    `void` | `dump(DataOutputStream file)` Dump ModulePackages attribute to file stream in binary format.
    `int` | `getNumberOfPackages()`
    `int[]` | `getPackageIndexTable()`
    `String[]` | `getPackageNames()`
    `void` | `setPackageIndexTable(int[] packageIndexTable)`
    `String` | `toString()`

    - ### Methods inherited from class org.apache.bcel.classfile.Attribute

      `addAttributeReader, addAttributeReader, clone, getConstantPool, getLength, getName, getNameIndex, getTag, println, readAttribute, readAttribute, removeAttributeReader, setConstantPool, setLength, setNameIndex`

    - ### Methods inherited from class java.lang.Object

      `equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

- - ### Constructor Detail

    - #### ModulePackages

          public ModulePackages(int nameIndex,
                                int length,
                                int[] packageIndexTable,
                                ConstantPool constantPool)

      Parameters:
        `nameIndex` - Index in constant pool
        `length` - Content length in bytes
        `packageIndexTable` - Table of indices in constant pool
        `constantPool` - Array of constants

    - #### ModulePackages

          public ModulePackages(ModulePackages c)

      Initialize from another object. Note that both objects use the same references (shallow copy). Use copy() for a physical copy.
      Parameters:
        `c` - Source to copy.

  - ### Method Detail

    - #### accept

          public void accept(Visitor v)

      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.
      Specified by:
        `accept` in interface `Node`
      Specified by:
        `accept` in class `Attribute`
      Parameters:
        `v` - Visitor object

    - #### copy

          public Attribute copy(ConstantPool constantPool)

      Specified by:
        `copy` in class `Attribute`
      Parameters:
        `constantPool` - constant pool to save.
      Returns:
        deep copy of this attribute

    - #### dump

          public void dump(DataOutputStream file)
                    throws IOException

      Dump ModulePackages attribute to file stream in binary format.
      Overrides:
        `dump` in class `Attribute`
      Parameters:
        `file` - Output file stream
      Throws:
        `IOException` - if an I/O error occurs.

    - #### getNumberOfPackages

          public int getNumberOfPackages()

      Returns:
        Length of package table.

    - #### getPackageIndexTable

          public int[] getPackageIndexTable()

      Returns:
        array of indices into constant pool of package names.

    - #### getPackageNames

          public String[] getPackageNames()

      Returns:
        string array of package names

    - #### setPackageIndexTable

          public void setPackageIndexTable(int[] packageIndexTable)

      Parameters:
        `packageIndexTable` - the list of package indexes Also redefines number_of_packages according to table length.

    - #### toString

          public String toString()

      Overrides:
        `toString` in class `Attribute`
      Returns:
        String representation, i.e., a list of packages.

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