Top Description Fields Constructors Methods
com.github.javaparser

public Class Position

extends Object
implements Comparable<Position>
Class Inheritance
All Implemented Interfaces
java.lang.Comparable
Known Direct Subclasses
com.github.javaparser.UnicodeEscapeProcessingProvider.PositionMapping.DeltaInfo
Imports
com.github.javaparser.ast.Node

A position in a source file. Lines and columns start counting at 1.

Field Summary

Modifier and TypeField and Description
public final int
public static final Position
HOME

The first position in the file

public final int

Constructor Summary

AccessConstructor and Description
public
Position(int line, int column)

Method Summary

Modifier and TypeMethod and Description
public int
compareTo(Position
the object to be compared.
o
)

Implements java.lang.Comparable.compareTo.

Compares this object with the specified object for order.
public boolean
equals(Object
the reference object with which to compare.
o
)

Overrides java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.
public int
hashCode()

Overrides java.lang.Object.hashCode.

Returns a hash code value for this object.
public boolean
public boolean
isAfter(Position position)

public boolean
isBefore(Position position)

public Position

Returns:

a position that is on the start of the next line from this position.
nextLine
()

public Position
orIfInvalid(Position anotherPosition)

public static Position
pos(int line, int column)

Convenient factory method.

public Position

Returns:

a position that is "characters" characters more to the right than this position.
right
(int characters)

public String
toString()

Overrides java.lang.Object.toString.

Returns a string representation of the object.
public boolean
valid()

Check if the position is usable.

public Position
withColumn(int column)

public Position
withLine(int line)

Inherited from java.lang.Object:
clonefinalizegetClassnotifynotifyAllwaitwaitwait

Field Detail

columnback to summary
public final int column
HOMEback to summary
public static final Position HOME

The first position in the file

lineback to summary
public final int line

Constructor Detail

Positionback to summary
public Position(int line, int column)

Method Detail

compareToback to summary
public int compareTo(Position o)

Implements java.lang.Comparable.compareTo.

Doc from java.lang.Comparable.compareTo.

Compares this object with the specified object for order. Returns a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.

The implementor must ensure signum(x.compareTo(y)) == -signum(y.compareTo(x)) for all x and y. (This implies that x.compareTo(y) must throw an exception if and only if y.compareTo(x) throws an exception.)

The implementor must also ensure that the relation is transitive: (x.compareTo(y) > 0 && y.compareTo(z) > 0) implies x.compareTo(z) > 0.

Finally, the implementor must ensure that x.compareTo(y)==0 implies that signum(x.compareTo(z)) == signum(y.compareTo(z)), for all z.

Parameters
o:Position

the object to be compared.

Returns:int

a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.

Annotations
@Override
equalsback to summary
public boolean equals(Object o)

Overrides java.lang.Object.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

  • It is reflexive: for any non-null reference value x, x.equals(x) should return true.
  • It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
  • It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
  • It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
  • For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters
o:Object

the reference object with which to compare.

Returns:boolean

true if this object is the same as the obj argument; false otherwise.

Annotations
@Override
hashCodeback to summary
public int hashCode()

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for this object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

  • Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
  • If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
  • It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.
Returns:int

a hash code value for this object

Annotations
@Override
invalidback to summary
public boolean invalid()
isAfterback to summary
public boolean isAfter(Position position)
isBeforeback to summary
public boolean isBefore(Position position)
nextLineback to summary
public Position nextLine()
Returns:Position

a position that is on the start of the next line from this position.

orIfInvalidback to summary
public Position orIfInvalid(Position anotherPosition)
posback to summary
public static Position pos(int line, int column)

Convenient factory method.

rightback to summary
public Position right(int characters)
Returns:Position

a position that is "characters" characters more to the right than this position.

toStringback to summary
public String toString()

Overrides java.lang.Object.toString.

Doc from java.lang.Object.toString.

Returns a string representation of the object.

Returns:String

a string representation of the object

Annotations
@Override
validback to summary
public boolean valid()

Check if the position is usable. Does not know what it is pointing at, so it can't check if the position is after the end of the source.

withColumnback to summary
public Position withColumn(int column)
withLineback to summary
public Position withLine(int line)