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## org.modeshape.graph.property
Interface ValueFactory<T>

Type Parameters:
  `T` - the type of value to create

All Known Subinterfaces:
  BinaryFactory, DateTimeFactory, NameFactory, PathFactory, ReferenceFactory, UuidFactory

    @ThreadSafe
    public interface ValueFactory<T>

A factory for `Property` values. Each create method may throw one of these exceptions when attempting to convert a supplied value to the `factory's type`:

- `IllegalArgumentException` - If the supplied value is invalid in respect to the conversion being attempted.
- `UnsupportedOperationException` - If a conversion from the supplied value is not supported.
- `IoException` - If an unexpected problem occurs during the conversion (such as an `IOException`).

Field Summary
`static TextDecoder` | `DEFAULT_DECODER`
`static TextEncoder` | `DEFAULT_ENCODER`

Method Summary
`T` | `create(BigDecimal value)` Create a value from a decimal.
`T[]` | `create(BigDecimal[] values)` Create an array of values from an array of decimal values.
`T` | `create(Binary value)` Create a value from the binary content given by the supplied stream.
`T[]` | `create(Binary[] values)` Create an array of values from the array of binary objects.
`T` | `create(boolean value)` Create a boolean from a string.
`T[]` | `create(boolean[] values)` Create an array of values from an array of booleans.
`T` | `create(byte[] value)` Create a value from the binary content given by the supplied array.
`T[]` | `create(byte[][] values)` Create an array of values from the array of binary content.
`T` | `create(Calendar value)` Create a value from a Calendar instance.
`T[]` | `create(Calendar[] values)` Create an array of values from an array of Calendar instances.
`T` | `create(Date value)` Create a value from a date.
`T[]` | `create(Date[] values)` Create an array of values from an array of dates.
`T` | `create(DateTime value)` Create a value from a date-time instant.
`T[]` | `create(DateTime[] values)` Create an array of values from an array of `DateTime` instants.
`T` | `create(double value)` Create a value from a double.
`T[]` | `create(double[] values)` Create an array of values from an array of doubles.
`T` | `create(float value)` Create a value from a float.
`T[]` | `create(float[] values)` Create an array of values from an array of floats.
`T` | `create(InputStream stream, long approximateLength)` Create a value from the binary content given by the supplied stream.
`T` | `create(int value)` Create a value from an integer.
`T[]` | `create(int[] values)` Create an array of values from an array of integers.
`Iterable<T>` | `create(Iterable<?> valueIterable)` Create an iterable with the values (of an unknown type).
`Iterator<T>` | `create(Iterator<?> values)` Create an iterator over the values (of an unknown type).
`T` | `create(long value)` Create a long from a string.
`T[]` | `create(long[] values)` Create an array of values from an array of longs.
`T` | `create(Name value)` Create a value from a name.
`T[]` | `create(Name[] values)` Create an array of values from an array of names.
`T` | `create(Object value)` Create a value from the specified information by determining which other `create` method applies and delegating to that method.
`T[]` | `create(Object[] values)` Create an array of values from the specified information by determining which other `create` method applies for each object and then delegating to that method.
`T` | `create(Path.Segment value)` Create a value from a path segment.
`T` | `create(Path value)` Create a value from a path.
`T[]` | `create(Path[] values)` Create an array of values from an array of paths.
`T` | `create(Reader reader, long approximateLength)` Create a value from a the binary content given by the supplied reader.
`T` | `create(Reference value)` Create a value from a reference.
`T[]` | `create(Reference[] values)` Create an array of values from an array of references.
`T` | `create(String value)` Create a value from a string, using no decoding.
`T[]` | `create(String[] values)` Create an array of values from an array of string values, using no decoding.
`T[]` | `create(String[] values, TextDecoder decoder)` Create an array of values from an array of strings, using the supplied decoder.
`T` | `create(String value, TextDecoder decoder)` Create a value from a string, using the supplied decoder.
`T` | `create(URI value)` Create a value from a URI.
`T[]` | `create(URI[] values)` Create an array of values from an array of URIs.
`T` | `create(UUID value)` Create a value from a UUID.
`T[]` | `create(UUID[] values)` Create an array of values from an array of UUIDs.
`PropertyType` | `getPropertyType()` Get the `type` of values created by this factory.

Field Detail

### DEFAULT_DECODER

    static final TextDecoder DEFAULT_DECODER

### DEFAULT_ENCODER

    static final TextEncoder DEFAULT_ENCODER

Method Detail

### getPropertyType

    PropertyType getPropertyType()

  Get the `type` of values created by this factory.

  Returns:
    the value type; never null

### create

    T create(String value)
             throws ValueFormatException

  Create a value from a string, using no decoding.

  Parameters:
    `value` - the string from which the value is to be created
  Returns:
    the value, or null if the supplied string is null
  Throws:
    `ValueFormatException` - if the conversion from a string could not be performed
  See Also:
    `create(String, TextDecoder)`

### create

    T create(String value,
             TextDecoder decoder)
             throws ValueFormatException

  Create a value from a string, using the supplied decoder.

  Parameters:
    `value` - the string from which the value is to be created
    `decoder` - the decoder that should be used; if null, the `default decoder` is used
  Returns:
    the value, or null if the supplied string is null
  Throws:
    `ValueFormatException` - if the conversion from a string could not be performed
  See Also:
    `create(String)`

### create

    T create(int value)
             throws ValueFormatException

  Create a value from an integer.

  Parameters:
    `value` - the integer from which the value is to be created
  Returns:
    the value; never null
  Throws:
    `ValueFormatException` - if the conversion from an integer could not be performed

### create

    T create(long value)
             throws ValueFormatException

  Create a long from a string.

  Parameters:
    `value` - the string from which the long is to be created
  Returns:
    the value; never null
  Throws:
    `ValueFormatException` - if the conversion from a long could not be performed

### create

    T create(boolean value)
             throws ValueFormatException

  Create a boolean from a string.

  Parameters:
    `value` - the boolean from which the value is to be created
  Returns:
    the value; never null
  Throws:
    `ValueFormatException` - if the conversion from a boolean could not be performed

### create

    T create(float value)
             throws ValueFormatException

  Create a value from a float.

  Parameters:
    `value` - the float from which the value is to be created
  Returns:
    the value; never null
  Throws:
    `ValueFormatException` - if the conversion from a float could not be performed

### create

    T create(double value)
             throws ValueFormatException

  Create a value from a double.

  Parameters:
    `value` - the double from which the value is to be created
  Returns:
    the value; never null
  Throws:
    `ValueFormatException` - if the conversion from a double could not be performed

### create

    T create(BigDecimal value)
             throws ValueFormatException

  Create a value from a decimal.

  Parameters:
    `value` - the decimal from which the value is to be created
  Returns:
    the value, or null if the supplied decimal is null
  Throws:
    `ValueFormatException` - if the conversion from a decimal could not be performed

### create

    T create(Calendar value)
             throws ValueFormatException

  Create a value from a Calendar instance.

  Parameters:
    `value` - the Calendar instance from which the value is to be created
  Returns:
    the value, or null if the supplied Calendar is null
  Throws:
    `ValueFormatException` - if the conversion from a Calendar could not be performed

### create

    T create(Date value)
             throws ValueFormatException

  Create a value from a date.

  Parameters:
    `value` - the date from which the value is to be created
  Returns:
    the value, or null if the supplied date is null
  Throws:
    `ValueFormatException` - if the conversion from a Date could not be performed

### create

    T create(DateTime value)
             throws ValueFormatException

  Create a value from a date-time instant.

  Parameters:
    `value` - the date-time instant from which the value is to be created
  Returns:
    the value, or null if the supplied date is null
  Throws:
    `ValueFormatException` - if the conversion from a Date could not be performed

### create

    T create(Name value)
             throws ValueFormatException

  Create a value from a name.

  Parameters:
    `value` - the name from which the value is to be created
  Returns:
    the value, or null if the supplied name is null
  Throws:
    `ValueFormatException` - if the conversion from a name could not be performed

### create

    T create(Path value)
             throws ValueFormatException

  Create a value from a path.

  Parameters:
    `value` - the path from which the value is to be created
  Returns:
    the value, or null if the supplied path is null
  Throws:
    `ValueFormatException` - if the conversion from a path could not be performed

### create

    T create(Path.Segment value)
             throws ValueFormatException

  Create a value from a path segment.

  Parameters:
    `value` - the path segment from which the value is to be created
  Returns:
    the value, or null if the supplied path segment is null
  Throws:
    `ValueFormatException` - if the conversion from a path could not be performed

### create

    T create(Reference value)
             throws ValueFormatException

  Create a value from a reference.

  Parameters:
    `value` - the reference from which the value is to be created
  Returns:
    the value, or null if the supplied reference is null
  Throws:
    `ValueFormatException` - if the conversion from a reference could not be performed

### create

    T create(URI value)
             throws ValueFormatException

  Create a value from a URI.

  Parameters:
    `value` - the URI from which the value is to be created
  Returns:
    the value, or null if the supplied URI is null
  Throws:
    `ValueFormatException` - if the conversion from a URI could not be performed

### create

    T create(UUID value)
             throws ValueFormatException

  Create a value from a UUID.

  Parameters:
    `value` - the UUID from which the value is to be created
  Returns:
    the value, or null if the supplied URI is null
  Throws:
    `ValueFormatException` - if the conversion from a UUID could not be performed

### create

    T create(byte[] value)
             throws ValueFormatException

  Create a value from the binary content given by the supplied array.

  Parameters:
    `value` - the content to be used to create the value
  Returns:
    the value, or null if the supplied stream is null
  Throws:
    `ValueFormatException` - if the conversion from a byte array could not be performed

### create

    T create(Binary value)
             throws ValueFormatException,
                    IoException

  Create a value from the binary content given by the supplied stream.

  Parameters:
    `value` - the binary object to be used to create the value
  Returns:
    the value, or null if the supplied stream is null
  Throws:
    `ValueFormatException` - if the conversion from the binary object could not be performed
    `IoException` - If an unexpected problem occurs while accessing the supplied binary value (such as an `IOException`).

### create

    T create(InputStream stream,
             long approximateLength)
             throws ValueFormatException,
                    IoException

  Create a value from the binary content given by the supplied stream.

  Parameters:
    `stream` - the stream containing the content to be used to create the value
    `approximateLength` - the approximate length of the content (in bytes)
  Returns:
    the value, or null if the supplied stream is null
  Throws:
    `ValueFormatException` - if the conversion from an input stream could not be performed
    `IoException` - If an unexpected problem occurs while accessing the supplied stream (such as an `IOException`).

### create

    T create(Reader reader,
             long approximateLength)
             throws ValueFormatException,
                    IoException

  Create a value from a the binary content given by the supplied reader.

  Parameters:
    `reader` - the reader containing the content to be used to create the value
    `approximateLength` - the approximate length of the content (in bytes)
  Returns:
    the value, or null if the supplied string is null
  Throws:
    `ValueFormatException` - if the conversion from a reader could not be performed
    `IoException` - If an unexpected problem occurs while accessing the supplied reader (such as an `IOException`).

### create

    T create(Object value)
             throws ValueFormatException,
                    IoException

  Create a value from the specified information by determining which other `create` method applies and delegating to that method. Note that this method only will call `create` methods that take a single parameter; so this excludes `create(InputStream, long)`, `create(Reader, long)` and `create(String, TextDecoder)`.

  Parameters:
    `value` - the value
  Returns:
    the new value, or null if the supplied parameter is null
  Throws:
    `ValueFormatException` - if the conversion from an object could not be performed
    `IoException` - If an unexpected problem occurs while accessing the supplied binary value (such as an `IOException`).

### create

    T[] create(String[] values)
               throws ValueFormatException

  Create an array of values from an array of string values, using no decoding.

  Parameters:
    `values` - the values
  Returns:
    the values, or null if the supplied string is null
  Throws:
    `ValueFormatException` - if the conversion from a string array could not be performed
  See Also:
    `create(String[], TextDecoder)`

### create

    T[] create(String[] values,
               TextDecoder decoder)
               throws ValueFormatException

  Create an array of values from an array of strings, using the supplied decoder.

  Parameters:
    `values` - the string values from which the values are to be created
    `decoder` - the decoder that should be used; if null, the `default decoder` is used
  Returns:
    the value, or null if the supplied string is null
  Throws:
    `ValueFormatException` - if the conversion from a string array could not be performed
  See Also:
    `create(String)`

### create

    T[] create(int[] values)
               throws ValueFormatException

  Create an array of values from an array of integers.

  Parameters:
    `values` - the integers from which the values are to be created
  Returns:
    the values, or null if the supplied array is null
  Throws:
    `ValueFormatException` - if the conversion from an integer array could not be performed

### create

    T[] create(long[] values)
               throws ValueFormatException

  Create an array of values from an array of longs.

  Parameters:
    `values` - the longs from which the values are to be created
  Returns:
    the values, or null if the supplied array is null
  Throws:
    `ValueFormatException` - if the conversion from an array of longs could not be performed

### create

    T[] create(boolean[] values)
               throws ValueFormatException

  Create an array of values from an array of booleans.

  Parameters:
    `values` - the booleans from which the values are to be created
  Returns:
    the values, or null if the supplied array is null
  Throws:
    `ValueFormatException` - if the conversion from an array of booleans could not be performed

### create

    T[] create(float[] values)
               throws ValueFormatException

  Create an array of values from an array of floats.

  Parameters:
    `values` - the floats from which the values are to be created
  Returns:
    the values, or null if the supplied array is null
  Throws:
    `ValueFormatException` - if the conversion from an array of floats could not be performed

### create

    T[] create(double[] values)
               throws ValueFormatException

  Create an array of values from an array of doubles.

  Parameters:
    `values` - the doubles from which the values are to be created
  Returns:
    the values, or null if the supplied array is null
  Throws:
    `ValueFormatException` - if the conversion from an array of doubles could not be performed

### create

    T[] create(BigDecimal[] values)
               throws ValueFormatException

  Create an array of values from an array of decimal values.

  Parameters:
    `values` - the decimals from which the values are to be created
  Returns:
    the values, or null if the supplied array is null
  Throws:
    `ValueFormatException` - if the conversion from an array of decimal values could not be performed

### create

    T[] create(Calendar[] values)
               throws ValueFormatException

  Create an array of values from an array of Calendar instances.

  Parameters:
    `values` - the Calendar instances from which the values are to be created
  Returns:
    the values, or null if the supplied array is null
  Throws:
    `ValueFormatException` - if the conversion from an array of calendar instances could not be performed

### create

    T[] create(Date[] values)
               throws ValueFormatException

  Create an array of values from an array of dates.

  Parameters:
    `values` - the dates from which the values are to be created
  Returns:
    the values, or null if the supplied array is null
  Throws:
    `ValueFormatException` - if the conversion from an array of date values could not be performed

### create

    T[] create(DateTime[] values)
               throws ValueFormatException

  Create an array of values from an array of `DateTime` instants.

  Parameters:
    `values` - the instants from which the values are to be created
  Returns:
    the values, or null if the supplied array is null
  Throws:
    `ValueFormatException` - if the conversion from an array of date values could not be performed

### create

    T[] create(Name[] values)
               throws ValueFormatException

  Create an array of values from an array of names.

  Parameters:
    `values` - the names from which the values are to be created
  Returns:
    the values, or null if the supplied array is null
  Throws:
    `ValueFormatException` - if the conversion from an array of names could not be performed

### create

    T[] create(Path[] values)
               throws ValueFormatException

  Create an array of values from an array of paths.

  Parameters:
    `values` - the paths from which the values are to be created
  Returns:
    the values, or null if the supplied array is null
  Throws:
    `ValueFormatException` - if the conversion from an array of paths could not be performed

### create

    T[] create(Reference[] values)
               throws ValueFormatException

  Create an array of values from an array of references.

  Parameters:
    `values` - the references from which the values are to be created
  Returns:
    the values, or null if the supplied array is null
  Throws:
    `ValueFormatException` - if the conversion from an array of references could not be performed

### create

    T[] create(URI[] values)
               throws ValueFormatException

  Create an array of values from an array of URIs.

  Parameters:
    `values` - the URIs from which the values are to be created
  Returns:
    the values, or null if the supplied array is null
  Throws:
    `ValueFormatException` - if the conversion from an array of URIs could not be performed

### create

    T[] create(UUID[] values)
               throws ValueFormatException

  Create an array of values from an array of UUIDs.

  Parameters:
    `values` - the UUIDs from which the values are to be created
  Returns:
    the values, or null if the supplied array is null
  Throws:
    `ValueFormatException` - if the conversion from an array of UUIDs could not be performed

### create

    T[] create(byte[][] values)
               throws ValueFormatException

  Create an array of values from the array of binary content.

  Parameters:
    `values` - the array of content to be used to create the values
  Returns:
    the value, or null if the supplied array is null
  Throws:
    `ValueFormatException` - if the conversion from an array of byte arrays could not be performed

### create

    T[] create(Binary[] values)
               throws ValueFormatException,
                      IoException

  Create an array of values from the array of binary objects.

  Parameters:
    `values` - the values
  Returns:
    the new value, or null if the supplied parameter is null
  Throws:
    `ValueFormatException` - if the conversion from an array of objects could not be performed
    `IoException` - If an unexpected problem occurs during the conversion.

### create

    T[] create(Object[] values)
               throws ValueFormatException,
                      IoException

  Create an array of values from the specified information by determining which other `create` method applies for each object and then delegating to that method. Note that this method will not consider `create(InputStream, long)`, `create(Reader, long)` and `create(String, TextDecoder)`.

  Parameters:
    `values` - the values
  Returns:
    the new value, or null if the supplied parameter is null
  Throws:
    `ValueFormatException` - if the conversion from an array of objects could not be performed
    `IoException` - If an unexpected problem occurs during the conversion.

### create

    Iterator<T> create(Iterator<?> values)
                       throws ValueFormatException,
                              IoException

  Create an iterator over the values (of an unknown type). The factory converts any values as required. Note that this method will not consider `create(InputStream, long)`, `create(Reader, long)` and `create(String, TextDecoder)`.

  This is useful to use when iterating over the `values` of a `Property`.

  Parameters:
    `values` - the values
  Returns:
    the iterator of type `T` over the values, or null if the supplied parameter is null
  Throws:
    `ValueFormatException` - if the conversion from an iterator of objects could not be performed
    `IoException` - If an unexpected problem occurs during the conversion.
  See Also:
    `Property.getValues()`

### create

    Iterable<T> create(Iterable<?> valueIterable)
                       throws ValueFormatException,
                              IoException

  Create an iterable with the values (of an unknown type). The factory converts any values as required. Note that this method will not consider `create(InputStream, long)`, `create(Reader, long)` and `create(String, TextDecoder)`.

  This is useful to use when converting all the `values` of a `Property`.

  Example:

            Property property = ...
            ExecutionContext executionContext = ...
            ValueFactory<String> stringFactory = executionContext.getValueFactories().getStringFactory();
            for (String token : stringFactory.create(property)) {
                ...
            }

  Parameters:
    `valueIterable` - the values
  Returns:
    the iterator of type `T` over the values, or null if the supplied parameter is null
  Throws:
    `ValueFormatException` - if the conversion from an iterator of objects could not be performed
    `IoException` - If an unexpected problem occurs during the conversion.
  See Also:
    `Property.getValues()`

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