Package org.apache.derby.client.am.stmtcache

Class StatementKey

  • public class StatementKey
extends java.lang.Object
    A key representing a java.sql.PreparedStatement or a java.sql.CallableStatement.

    The key takes a number of statement related attributes into account, and is used to insert and look up cached statement objects in the JDBC statement cache.

    Key instances are created by a statement key factory.

    See Also:
    StatementKeyFactory

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private int autogeneratedKeys
      Tells if the associated statement returns auto-generated keys.
      private int concurrency
      The result set concurrency for the statement.
      private int holdability
      Result set holdability for the statement.
      private boolean isCallableStatement
      Tells if the key represents a CallableStatement.
      private java.lang.String schema
      The compilation schema for the statement.
      private java.lang.String sql
      The SQL query of the statement.
      private int type
      The result set type for the statement.

    • Constructor Summary

      Constructors 
      Constructor Description
      StatementKey​(boolean isCallableStatement, java.lang.String sql, java.lang.String schema, int rsType, int rsConcurrency, int rsHoldability, int autogeneratedKeys)
      Creates a statement key with all the common properties.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean equals​(java.lang.Object obj)  
      int hashCode()  
      java.lang.String toString()  

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • isCallableStatement

        private final boolean isCallableStatement
        Tells if the key represents a CallableStatement.

      • sql

        private final java.lang.String sql
        The SQL query of the statement.

      • schema

        private final java.lang.String schema
        The compilation schema for the statement.

      • type

        private final int type
        The result set type for the statement.

      • concurrency

        private final int concurrency
        The result set concurrency for the statement.

      • holdability

        private final int holdability
        Result set holdability for the statement.

      • autogeneratedKeys

        private final int autogeneratedKeys
        Tells if the associated statement returns auto-generated keys.

    • Constructor Detail

      • StatementKey

        StatementKey​(boolean isCallableStatement,
             java.lang.String sql,
             java.lang.String schema,
             int rsType,
             int rsConcurrency,
             int rsHoldability,
             int autogeneratedKeys)
        Creates a statement key with all the common properties.
        Parameters:
        isCallableStatement - true is this is a key for a java.sql.CallableStatement
        sql - SQL query string
        schema - compilation schema
        rsType - result set type
        rsConcurrency - result set concurrency
        rsHoldability - result set holdability
        autogeneratedKeys - if auto-generated keys are returned
        Throws:
        java.lang.IllegalArgumentException - if schema is null

    • Method Detail

      • equals

        public boolean equals​(java.lang.Object obj)
        Overrides:
        equals in class java.lang.Object

      • hashCode

        public int hashCode()
        Overrides:
        hashCode in class java.lang.Object

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object