org.apache.tools.ant.types.resources

## Class PropertyResource

- java.lang.Object
- - org.apache.tools.ant.ProjectComponent
  - - org.apache.tools.ant.types.DataType
    - - org.apache.tools.ant.types.Resource
      - - org.apache.tools.ant.types.resources.PropertyResource

- All Implemented Interfaces:
    java.lang.Cloneable, java.lang.Comparable<Resource>, java.lang.Iterable<Resource>, ResourceCollection

      public class PropertyResource
      extends Resource

  Exposes an Ant property as a Resource.
  Since:
    Ant 1.7

- - ### Field Summary

    - ### Fields inherited from class org.apache.tools.ant.types.Resource

      `MAGIC, UNKNOWN_DATETIME, UNKNOWN_SIZE`

    - ### Fields inherited from class org.apache.tools.ant.types.DataType

      `checked, ref`

    - ### Fields inherited from class org.apache.tools.ant.ProjectComponent

      `description, location, project`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `PropertyResource()` Default constructor.
    `PropertyResource(Project p, java.lang.String n)` Construct a new PropertyResource with the specified name.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `equals(java.lang.Object o)` Override to implement equality with equivalent Resources, since we are capable of proxying them.
    `protected PropertyResource` | `getCheckedRef()` Performs the check for circular references and returns the referenced object.
    `java.io.InputStream` | `getInputStream()` Get an InputStream for the Resource.
    `java.lang.Object` | `getObjectValue()` Get the Object value of this PropertyResource.
    `java.io.OutputStream` | `getOutputStream()` Get an OutputStream for the Resource.
    `protected Resource` | `getReferencedOrProxied()` Get the referenced or proxied Resource, if applicable.
    `long` | `getSize()` Get the size of this Resource.
    `java.lang.String` | `getValue()` Get the value of this PropertyResource.
    `int` | `hashCode()` Get the hash code for this Resource.
    `boolean` | `isExists()` Find out whether this Resource exists.
    `protected boolean` | `isReferenceOrProxy()` Learn whether this PropertyResource either refers to another Resource or proxies another Resource due to its object property value being said Resource.
    `java.lang.String` | `toString()` Get the string representation of this Resource.

    - ### Methods inherited from class org.apache.tools.ant.types.Resource

      `as, asOptional, clone, compareTo, getLastModified, getMagicNumber, getName, isDirectory, isFilesystemOnly, iterator, setDirectory, setExists, setLastModified, setName, setRefid, setSize, size, toLongString`

    - ### Methods inherited from class org.apache.tools.ant.types.DataType

      `checkAttributesAllowed, checkChildrenAllowed, circularReference, dieOnCircularReference, dieOnCircularReference, dieOnCircularReference, getCheckedRef, getCheckedRef, getCheckedRef, getDataTypeName, getRefid, invokeCircularReferenceCheck, isChecked, isReference, noChildrenAllowed, pushAndInvokeCircularReferenceCheck, setChecked, tooManyAttributes`

    - ### Methods inherited from class org.apache.tools.ant.ProjectComponent

      `getDescription, getLocation, getProject, log, log, setDescription, setLocation, setProject`

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

      `finalize, getClass, notify, notifyAll, wait, wait, wait`

    - ### Methods inherited from interface org.apache.tools.ant.types.ResourceCollection

      `isEmpty, stream`

    - ### Methods inherited from interface java.lang.Iterable

      `forEach, spliterator`

- - ### Constructor Detail

    - #### PropertyResource

          public PropertyResource()

      Default constructor.

    - #### PropertyResource

          public PropertyResource(Project p,
                                  java.lang.String n)

      Construct a new PropertyResource with the specified name.
      Parameters:
        `p` - the project to use.
        `n` - the String name of this PropertyResource (Ant property name/key).

  - ### Method Detail

    - #### getValue

          public java.lang.String getValue()

      Get the value of this PropertyResource.
      Returns:
        the value of the specified Property.

    - #### getObjectValue

          public java.lang.Object getObjectValue()

      Get the Object value of this PropertyResource.
      Returns:
        the Object value of the specified Property.
      Since:
        Ant 1.8.1

    - #### isExists

          public boolean isExists()

      Find out whether this Resource exists.
      Overrides:
        `isExists` in class `Resource`
      Returns:
        true if the Property is set, false otherwise.

    - #### getSize

          public long getSize()

      Get the size of this Resource.
      Overrides:
        `getSize` in class `Resource`
      Returns:
        the size, as a long, 0 if the Resource does not exist (for compatibility with java.io.File), or UNKNOWN_SIZE if not known.

    - #### equals

          public boolean equals(java.lang.Object o)

      Override to implement equality with equivalent Resources, since we are capable of proxying them.
      Overrides:
        `equals` in class `Resource`
      Parameters:
        `o` - object to compare
      Returns:
        true if equal to o

    - #### hashCode

          public int hashCode()

      Get the hash code for this Resource.
      Overrides:
        `hashCode` in class `Resource`
      Returns:
        hash code as int.

    - #### toString

          public java.lang.String toString()

      Get the string representation of this Resource.
      Overrides:
        `toString` in class `Resource`
      Returns:
        this Resource formatted as a String.

    - #### getInputStream

          public java.io.InputStream getInputStream()
                                             throws java.io.IOException

      Get an InputStream for the Resource.
      Overrides:
        `getInputStream` in class `Resource`
      Returns:
        an InputStream containing this Resource's content.
      Throws:
        `java.io.IOException` - if unable to provide the content of this Resource as a stream.
        `java.lang.UnsupportedOperationException` - if InputStreams are not supported for this Resource type.

    - #### getOutputStream

          public java.io.OutputStream getOutputStream()
                                               throws java.io.IOException

      Get an OutputStream for the Resource.
      Overrides:
        `getOutputStream` in class `Resource`
      Returns:
        an OutputStream to which content can be written.
      Throws:
        `java.io.IOException` - if unable to provide the content of this Resource as a stream.
        `java.lang.UnsupportedOperationException` - if OutputStreams are not supported for this Resource type.

    - #### isReferenceOrProxy

          protected boolean isReferenceOrProxy()

      Learn whether this PropertyResource either refers to another Resource or proxies another Resource due to its object property value being said Resource.
      Returns:
        boolean

    - #### getReferencedOrProxied

          protected Resource getReferencedOrProxied()

      Get the referenced or proxied Resource, if applicable.
      Returns:
        Resource
      Throws:
        `java.lang.IllegalStateException` - if this PropertyResource neither proxies nor references another Resource.

    - #### getCheckedRef

          protected PropertyResource getCheckedRef()

      Description copied from class: `DataType`
      Performs the check for circular references and returns the referenced object.
      Overrides:
        `getCheckedRef` in class `Resource`
      Returns:
        the dereferenced object.