Location (Apache Ant API)

org.apache.tools.ant
Class Location

java.lang.Object

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  +--org.apache.tools.ant.Location

public class Location

extends java.lang.Object

Stores the location of a piece of text within a file (file name, line number and column number). Note that the column number is currently ignored.

Field Summary

static Location

UNKNOWN_LOCATION Location to use when one is needed but no information is available

Constructor Summary

Location(java.lang.String fileName)
Creates a location consisting of a file name but no line number or column number.

Location(java.lang.String fileName, int lineNumber, int columnNumber)
Creates a location consisting of a file name, line number and column number.

Method Summary

java.lang.String

toString() Returns the file name, line number, a colon and a trailing space.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

UNKNOWN_LOCATION

public static final Location UNKNOWN_LOCATION

Location to use when one is needed but no information is available

Constructor Detail

Location

public Location(java.lang.String fileName)

Creates a location consisting of a file name but no line number or column number.

Parameters:

fileName - The name of the file. May be null, in which case the location is equivalent to UNKNOWN_LOCATION.

Location

public Location(java.lang.String fileName,
                int lineNumber,
                int columnNumber)

Creates a location consisting of a file name, line number and column number.

Parameters:

fileName - The name of the file. May be null, in which case the location is equivalent to UNKNOWN_LOCATION.

lineNumber - Line number within the file. Use 0 for unknown positions within a file.

columnNumber - Column number within the line.

Method Detail

toString

public java.lang.String toString()

Returns the file name, line number, a colon and a trailing space. An error message can be appended easily. For unknown locations, an empty string is returned.

Overrides:

toString in class java.lang.Object

Returns:

a String of the form "fileName: lineNumber: " if both file name and line number are known, "fileName: " if only the file name is known, and the empty string for unknown locations.