Package org.postgresql.util

Class PGobject

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

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected java.lang.String type  
      protected java.lang.String value  

    • Constructor Summary

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

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.Object clone()
      This must be overridden to allow the object to be cloned.
      boolean equals​(java.lang.Object obj)
      This must be overridden to allow comparisons of objects.
      protected static boolean equals​(java.lang.Object a, java.lang.Object b)  
      java.lang.String getType()
      As this cannot change during the life of the object, it's final.
      java.lang.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.
      void setType​(java.lang.String type)
      This method sets the type of this object.
      void setValue​(java.lang.String value)
      This method sets the value of this object.
      java.lang.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 Detail

      • type

        protected java.lang.String type

      • value

        protected java.lang.String value

    • Constructor Detail

      • PGobject

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

    • Method Detail

      • setType

        public final void setType​(java.lang.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​(java.lang.String value)
              throws java.sql.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:
        java.sql.SQLException - thrown if value is invalid for this type

      • getType

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

      • getValue

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

      • clone

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

      • toString

        public java.lang.String toString()
        This is defined here, so user code need not override it.
        Overrides:
        toString in class java.lang.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 java.lang.Object
        Returns:
        Value hashcode, 0 if value is null Objects.hashCode(Object)

      • equals

        protected static boolean equals​(java.lang.Object a,
                                java.lang.Object b)