ArrayConverter
implementation@Deprecated public final class StringArrayConverter extends AbstractArrayConverter
Converter
implementation that converts an incoming
String into an array of String objects. On a conversion failure, returns
a specified default value or throws a ConversionException
depending
on how this instance is constructed.
There is also some special handling where the input is of type int[]. See method convert for more details.
defaultValue, NO_DEFAULT, strings, useDefault
Constructor and Description |
---|
StringArrayConverter()
Deprecated.
Create a
Converter that will throw
a ConversionException if a conversion error occurs. |
StringArrayConverter(Object defaultValue)
Deprecated.
Create a
Converter that will return
the specified default value if a conversion error occurs. |
Modifier and Type | Method and Description |
---|---|
Object |
convert(Class type,
Object value)
Deprecated.
Convert the specified input object into an output object of the
specified type.
|
parseElements
public StringArrayConverter()
Converter
that will throw
a ConversionException
if a conversion error occurs.public StringArrayConverter(Object defaultValue)
Converter
that will return
the specified default value if a conversion error occurs.defaultValue
- The default value to be returnedpublic Object convert(Class type, Object value)
If the value is already of type String[] then it is simply returned unaltered.
If the value is of type int[], then a String[] is returned where each element in the string array is the result of calling Integer.toString on the corresponding element of the int array. This was added as a result of bugzilla request #18297 though there is not complete agreement that this feature should have been added.
In all other cases, this method calls toString on the input object, then assumes the result is a comma-separated list of values. The values are split apart into the individual items and returned as the elements of an array. See class AbstractArrayConverter for the exact input formats supported.
convert
in interface Converter
convert
in class AbstractArrayConverter
type
- is the data type to which this value should be converted.
It is expected to be the class for type String[] (though this parameter
is actually ignored by this method).value
- is the input value to be converted. If null then the
default value is returned or an exception thrown if no default value
exists.ConversionException
- if conversion cannot be performed
successfully, or the input is null and there is no default value set
for this object.Copyright © 2000–2016 The Apache Software Foundation. All rights reserved.