Package org.postgresql.geometric

Class PGline

java.lang.Object
org.postgresql.util.PGobject
org.postgresql.geometric.PGline
All Implemented Interfaces:
Serializable, Cloneable
public class PGline extends PGobject implements Serializable, Cloneable
This implements a line represented by the linear equation Ax + By + C = 0.
See Also:

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    double
    a
    Coefficient of x.
    double
    b
    Coefficient of y.
    double
    c
    Constant.

    Fields inherited from class org.postgresql.util.PGobject

    type, value

  • Constructor Summary

    Constructors
    Constructor
    Description
    PGline()
    required by the driver.
    PGline(double a, double b, double c)
     
    PGline(double x1, double y1, double x2, double y2)
     
    PGline(@Nullable PGlseg lseg)
     
    PGline(@Nullable PGpoint p1, @Nullable PGpoint p2)
     
    PGline(String s)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    Object
    clone()
    This must be overridden to allow the object to be cloned.
    boolean
    equals(@Nullable Object obj)
    This must be overridden to allow comparisons of objects.
    @Nullable String
    getValue()
    This must be overridden, to return the value of the object, in the form required by org.postgresql.
    int
    hashCode()
    Compute hash.
    void
    setValue(@Nullable String s)
    This method sets the value of this object.

    Methods inherited from class org.postgresql.util.PGobject

    equals, getType, isNull, setType, toString

    Methods inherited from class java.lang.Object

    finalize, getClass, notify, notifyAll, wait, wait, wait

  • Field Details

    • a

      public double a
      Coefficient of x.

    • b

      public double b
      Coefficient of y.

    • c

      public double c
      Constant.

  • Constructor Details

    • PGline

      public PGline(double a, double b, double c)
      Parameters:
      a - coefficient of x
      b - coefficient of y
      c - constant

    • PGline

      public PGline(double x1, double y1, double x2, double y2)
      Parameters:
      x1 - coordinate for first point on the line
      y1 - coordinate for first point on the line
      x2 - coordinate for second point on the line
      y2 - coordinate for second point on the line

    • PGline

      public PGline(@Nullable PGpoint p1, @Nullable PGpoint p2)
      Parameters:
      p1 - first point on the line
      p2 - second point on the line

    • PGline

      public PGline(@Nullable PGlseg lseg)
      Parameters:
      lseg - Line segment which calls on this line.

    • PGline

      public PGline(String s) throws SQLException
      Parameters:
      s - definition of the line in PostgreSQL's syntax.
      Throws:
      SQLException - on conversion failure

    • PGline

      public PGline()
      required by the driver.

  • Method Details

    • setValue

      public void setValue(@Nullable String s) throws SQLException
      Description copied from class: PGobject
      This method sets the value of this object. It must be overridden.
      Overrides:
      setValue in class PGobject
      Parameters:
      s - Definition of the line in PostgreSQL's syntax
      Throws:
      SQLException - on conversion failure

    • equals

      public boolean equals(@Nullable Object obj)
      Description copied from class: PGobject
      This must be overridden to allow comparisons of objects.
      Overrides:
      equals in class PGobject
      Parameters:
      obj - Object to compare with
      Returns:
      true if the two lines are identical

    • hashCode

      public int hashCode()
      Description copied from class: PGobject
      Compute hash. As equals() use only value. Return the same hash for the same value.
      Overrides:
      hashCode in class PGobject
      Returns:
      Value hashcode, 0 if value is null Objects.hashCode(Object)

    • getValue

      public @Nullable String getValue()
      Description copied from class: PGobject
      This must be overridden, to return the value of the object, in the form required by org.postgresql.
      Overrides:
      getValue in class PGobject
      Returns:
      the PGline in the syntax expected by org.postgresql

    • clone

      public Object clone() throws CloneNotSupportedException
      Description copied from class: PGobject
      This must be overridden to allow the object to be cloned.
      Overrides:
      clone in class PGobject
      Throws:
      CloneNotSupportedException