Package org.postgresql.util

Class PGobject

java.lang.Object
org.postgresql.util.PGobject
All Implemented Interfaces:
Serializable, Cloneable
Direct Known Subclasses:
PGbox, PGcircle, PGInterval, PGline, PGlseg, PGmoney, PGpath, PGpoint, PGpolygon
public class PGobject extends Object implements Serializable, Cloneable
PGobject is a class used to describe unknown types An unknown type is any type that is unknown by JDBC Standards.
See Also:

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    protected @Nullable String
    type
     
    protected @Nullable String
    value
     

  • Constructor Summary

    Constructors
    Constructor
    Description
    PGobject()
    This is called by org.postgresql.Connection.getObject() to create the object.

  • 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.
    protected static boolean
    equals(@Nullable Object a, @Nullable Object b)
     
    final String
    getType()
    As this cannot change during the life of the object, it's final.
    @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.
    boolean
    isNull()
    Returns true if the current object wraps `null` value.
    final void
    setType(String type)
    This method sets the type of this object.
    void
    setValue(@Nullable String value)
    This method sets the value of this object.
    String
    toString()
    This is defined here, so user code need not override it.

    Methods inherited from class java.lang.Object

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

  • Field Details

    • type

      protected @Nullable String type

    • value

      protected @Nullable String value

  • Constructor Details

    • PGobject

      public PGobject()
      This is called by org.postgresql.Connection.getObject() to create the object.

  • Method Details

    • setType

      public final void setType(String type)

      This method sets the type of this object.

      It should not be extended by subclasses, hence it is final

      Parameters:
      type - a string describing the type of the object

    • setValue

      public void setValue(@Nullable String value) throws SQLException
      This method sets the value of this object. It must be overridden.
      Parameters:
      value - a string representation of the value of the object
      Throws:
      SQLException - thrown if value is invalid for this type

    • getType

      public final String getType()
      As this cannot change during the life of the object, it's final.
      Returns:
      the type name of this object

    • getValue

      public @Nullable String getValue()
      This must be overridden, to return the value of the object, in the form required by org.postgresql.
      Returns:
      the value of this object

    • isNull

      public boolean isNull()
      Returns true if the current object wraps `null` value. This might be helpful
      Returns:
      true if the current object wraps `null` value.

    • equals

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

    • clone

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

    • toString

      public String toString()
      This is defined here, so user code need not override it.
      Overrides:
      toString in class Object
      Returns:
      the value of this object, in the syntax expected by org.postgresql

    • hashCode

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

    • equals

      protected static boolean equals(@Nullable Object a, @Nullable Object b)