Well, it depends on how the Text object is initialized. If it is initialized with a String, it sets its internal length to the length of the string.
--- Jim Kellerman, Senior Engineer; Powerset > -----Original Message----- > From: stack [mailto:[EMAIL PROTECTED] > Sent: Wednesday, November 21, 2007 9:04 AM > To: hadoop-user@lucene.apache.org > Subject: Re: Text and/or ImmutableBytesWritable issue? > > What Jim just said, but it looks to me like Text is doing the > wrong thing. When you ask it its length, it returns the byte > buffer capacity rather than how many bytes are in use. It > says length is 16 but there are only 15 characters in your > test string, UTF-8'd or not. > > St.Ack > > > Jason Grey wrote: > > Can anyone explain why "testTextToBytes" doesn't assert and > > "testStringToBytes" does? > > > > > > import org.apache.hadoop.hbase.io.ImmutableBytesWritable; > > import org.apache.hadoop.io.Text; > > > > import junit.framework.TestCase; > > > > public class TestImmutableBytesWritable extends TestCase { > > > > public void testTextToBytes(){ > > > > Text input = new Text("this is a test."); > > > > ImmutableBytesWritable bytes = > > new ImmutableBytesWritable( > input.getBytes() ); > > > > Text output = new Text( bytes.get() ); > > > > assertEquals(input, output); > > > > } > > > > public void testStringToBytes(){ > > > > String input = "this is a test."; > > > > ImmutableBytesWritable bytes = > > new ImmutableBytesWritable( > input.getBytes() ); > > > > String output = new String( bytes.get() ); > > > > assertEquals(input, output); > > > > } > > } > > > > > > If I inspect the objects during debugging at the point of > the assert I > > see the following: > > > > * input > > bytes = [116, 104, 105, 115, 32, 105 > > , 115, 32, 97, 32, 116, 101 > > , 115, 116, 46, 0] > > length = 15 > > > > * bytes = [116, 104, 105, 115, 32, 105 > > , 115, 32, 97, 32, 116, 101 > > , 115, 116, 46, 0] > > > > * output > > bytes = [116, 104, 105, 115, 32, 105 > > , 115, 32, 97, 32, 116, 101 > > , 115, 116, 46, 0] > > length = 16 > > > > The length property appears to be off between the two Text objects, > > but all the data is correct... any help would be greatly > appreciated. > > > > Thanks > > > > -jg- > > > > > >
