org.apache.bcel.generic

## Class LineNumberGen

- java.lang.Object
- - org.apache.bcel.generic.LineNumberGen

- All Implemented Interfaces:
    Cloneable, InstructionTargeter

      public class LineNumberGen
      extends Object
      implements InstructionTargeter, Cloneable

  This class represents a line number within a method, i.e., give an instruction a line number corresponding to the source code line.
  See Also:
    `LineNumber`, `MethodGen`

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `LineNumberGen(InstructionHandle ih, int srcLine)` Create a line number.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `Object` | `clone()`
    `boolean` | `containsTarget(InstructionHandle ih)` Checks whether this targeter targets the specified instruction handle.
    `InstructionHandle` | `getInstruction()`
    `LineNumber` | `getLineNumber()` Get LineNumber attribute.
    `int` | `getSourceLine()`
    `void` | `setInstruction(InstructionHandle instructionHandle)`
    `void` | `setSourceLine(int srcLine)`
    `void` | `updateTarget(InstructionHandle oldIh, InstructionHandle newIh)` Replaces the target of this targeter from this old handle to the new handle.

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

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

- - ### Constructor Detail

    - #### LineNumberGen

          public LineNumberGen(InstructionHandle ih,
                               int srcLine)

      Create a line number.
      Parameters:
        `ih` - instruction handle to reference

  - ### Method Detail

    - #### clone

          public Object clone()

      Overrides:
        `clone` in class `Object`

    - #### containsTarget

          public boolean containsTarget(InstructionHandle ih)

      Description copied from interface: `InstructionTargeter`
      Checks whether this targeter targets the specified instruction handle.
      Specified by:
        `containsTarget` in interface `InstructionTargeter`
      Returns:
        true, if ih is target of this line number

    - #### getInstruction

          public InstructionHandle getInstruction()

    - #### getLineNumber

          public LineNumber getLineNumber()

      Get LineNumber attribute. This relies on that the instruction list has already been dumped to byte code or that the 'setPositions' methods has been called for the instruction list.

    - #### getSourceLine

          public int getSourceLine()

    - #### setInstruction

          public void setInstruction(InstructionHandle instructionHandle)

    - #### setSourceLine

          public void setSourceLine(int srcLine)

    - #### updateTarget

          public void updateTarget(InstructionHandle oldIh,
                                   InstructionHandle newIh)

      Description copied from interface: `InstructionTargeter`
      Replaces the target of this targeter from this old handle to the new handle.
      Specified by:
        `updateTarget` in interface `InstructionTargeter`
      Parameters:
        `oldIh` - old target
        `newIh` - new target

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