Class CachedPreparedStatement


  • public class CachedPreparedStatement
    extends Object
    Allows PreparedStatement information to be cached. A prepared statement consists of a SQL statement containing bind variables as well as variable values. For example, the SQL statement "SELECT * FROM person WHERE age > ?" would have the integer variable 18 (which replaces the "?" chracter) to find all adults. This class encapsulates both the SQL string and bind variable values so that actual PreparedStatement can be created from that information later.
    Author:
    Matt Tucker
    • Constructor Detail

      • CachedPreparedStatement

        public CachedPreparedStatement()
        Constructs a new CachedPreparedStatement.
      • CachedPreparedStatement

        public CachedPreparedStatement​(String sql)
        Constructs a new CachedPreparedStatement.
        Parameters:
        sql - the SQL.
    • Method Detail

      • getSQL

        public String getSQL()
        Returns the SQL.
        Returns:
        the SQL.
      • setSQL

        public void setSQL​(String sql)
        Sets the SQL.
        Parameters:
        sql - the SQL.
      • addBoolean

        public void addBoolean​(boolean value)
        Adds a boolean parameter to the prepared statement.
        Parameters:
        value - the boolean value.
      • addInt

        public void addInt​(int value)
        Adds an integer parameter to the prepared statement.
        Parameters:
        value - the int value.
      • addLong

        public void addLong​(long value)
        Adds a long parameter to the prepared statement.
        Parameters:
        value - the long value.
      • addString

        public void addString​(String value)
        Adds a String parameter to the prepared statement.
        Parameters:
        value - the String value.
      • setParams

        public void setParams​(PreparedStatement pstmt)
                       throws SQLException
        Sets all parameters on the given PreparedStatement. The standard code block for turning a CachedPreparedStatement into a PreparedStatement is as follows:
         PreparedStatement pstmt = con.prepareStatement(cachedPstmt.getSQL());
         cachedPstmt.setParams(pstmt);
         
        Parameters:
        pstmt - the prepared statement.
        Throws:
        SQLException - if an SQL Exception occurs.
      • hashCode

        public int hashCode()
        Overrides:
        hashCode in class Object