Manifest.Attribute (Apache Ant API)
Date: 2018-07-10

org.apache.tools.ant.taskdefs

## Class Manifest.Attribute

- java.lang.Object
- - org.apache.tools.ant.taskdefs.Manifest.Attribute

- Enclosing class:
    Manifest

      public static class Manifest.Attribute
      extends java.lang.Object

  An attribute for the manifest. Those attributes that are not nested into a section will be added to the "Main" section.

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `Attribute()` Construct an empty attribute
    `Attribute(java.lang.String line)` Construct an attribute by parsing a line from the Manifest
    `Attribute(java.lang.String name, java.lang.String value)` Construct a manifest by specifying its name and value

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `addContinuation(java.lang.String line)` Add a continuation line from the Manifest file.
    `void` | `addValue(java.lang.String value)` Add a new value to this attribute - making it multivalued.
    `boolean` | `equals(java.lang.Object rhs)`
    `java.lang.String` | `getKey()` Get the attribute's Key - its name in lower case.
    `java.lang.String` | `getName()` Get the Attribute's name
    `java.lang.String` | `getValue()` Get the Attribute's value.
    `java.util.Enumeration<java.lang.String>` | `getValues()` Get all the attribute's values.
    `int` | `hashCode()`
    `void` | `parse(java.lang.String line)` Parse a line into name and value pairs
    `void` | `setName(java.lang.String name)` Set the Attribute's name; required
    `void` | `setValue(java.lang.String value)` Set the Attribute's value; required
    `void` | `write(java.io.PrintWriter writer)` Write the attribute out to a print writer without flattening multi-values attributes (i.e.
    `void` | `write(java.io.PrintWriter writer, boolean flatten)` Write the attribute out to a print writer.

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

      `clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### Attribute

          public Attribute()

      Construct an empty attribute

    - #### Attribute

          public Attribute(java.lang.String line)
                    throws ManifestException

      Construct an attribute by parsing a line from the Manifest
      Parameters:
        `line` - the line containing the attribute name and value
      Throws:
        `ManifestException` - if the line is not valid

    - #### Attribute

          public Attribute(java.lang.String name,
                           java.lang.String value)

      Construct a manifest by specifying its name and value
      Parameters:
        `name` - the attribute's name
        `value` - the Attribute's value

  - ### Method Detail

    - #### hashCode

          public int hashCode()

      Overrides:
        `hashCode` in class `java.lang.Object`
      Returns:
        a hashcode based on the key and values.
      See Also:
        `Object.hashCode()`

    - #### equals

          public boolean equals(java.lang.Object rhs)

      Overrides:
        `equals` in class `java.lang.Object`
      Parameters:
        `rhs` - the object to check for equality.
      Returns:
        true if the key and values are the same.
      See Also:
        `Object.equals(java.lang.Object)`

    - #### parse

          public void parse(java.lang.String line)
                     throws ManifestException

      Parse a line into name and value pairs
      Parameters:
        `line` - the line to be parsed
      Throws:
        `ManifestException` - if the line does not contain a colon separating the name and value

    - #### setName

          public void setName(java.lang.String name)

      Set the Attribute's name; required
      Parameters:
        `name` - the attribute's name

    - #### getName

          public java.lang.String getName()

      Get the Attribute's name
      Returns:
        the attribute's name.

    - #### getKey

          public java.lang.String getKey()

      Get the attribute's Key - its name in lower case.
      Returns:
        the attribute's key.

    - #### setValue

          public void setValue(java.lang.String value)

      Set the Attribute's value; required
      Parameters:
        `value` - the attribute's value

    - #### getValue

          public java.lang.String getValue()

      Get the Attribute's value.
      Returns:
        the attribute's value.

    - #### addValue

          public void addValue(java.lang.String value)

      Add a new value to this attribute - making it multivalued.
      Parameters:
        `value` - the attribute's additional value

    - #### getValues

          public java.util.Enumeration<java.lang.String> getValues()

      Get all the attribute's values.
      Returns:
        an enumeration of the attributes values

    - #### addContinuation

          public void addContinuation(java.lang.String line)

      Add a continuation line from the Manifest file. When lines are too long in a manifest, they are continued on the next line by starting with a space. This method adds the continuation data to the attribute value by skipping the first character.
      Parameters:
        `line` - the continuation line.

    - #### write

          public void write(java.io.PrintWriter writer)
                     throws java.io.IOException

      Write the attribute out to a print writer without flattening multi-values attributes (i.e. Class-Path).
      Parameters:
        `writer` - the Writer to which the attribute is written
      Throws:
        `java.io.IOException` - if the attribute value cannot be written

    - #### write

          public void write(java.io.PrintWriter writer,
                            boolean flatten)
                     throws java.io.IOException

      Write the attribute out to a print writer.
      Parameters:
        `writer` - the Writer to which the attribute is written
        `flatten` - whether to collapse multi-valued attributes (i.e. potentially Class-Path) Class-Path into a single attribute.
      Throws:
        `java.io.IOException` - if the attribute value cannot be written
      Since:
        Ant 1.8.0