Class: JDBCHelper::Connection::ParameterizedStatement Abstract

Inherits:
Object
  • Object
show all
Defined in:
lib/jdbc-helper/connection/parameterized_statement.rb

Overview

This class is abstract.

Direct Known Subclasses

CallableStatement, PreparedStatement

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(conn, sql, obj) ⇒ ParameterizedStatement

Returns a new instance of ParameterizedStatement.

Parameters:



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# File 'lib/jdbc-helper/connection/parameterized_statement.rb', line 19

def initialize(conn, sql, obj)
  @conn     = conn
  @sql      = sql
  @java_obj = obj
end

Instance Attribute Details

#java_obj ⇒ Object (readonly) Also known as: java

Underlying Java object



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# File 'lib/jdbc-helper/connection/parameterized_statement.rb', line 14

def java_obj
  @java_obj
end

#sql ⇒ String (readonly)

SQL string

Returns:

  • (String) 


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# File 'lib/jdbc-helper/connection/parameterized_statement.rb', line 11

def sql
  @sql
end

Instance Method Details

#close ⇒ NilClass

Returns:

  • (NilClass) 


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# File 'lib/jdbc-helper/connection/parameterized_statement.rb', line 57

def close
  @java_obj.close
  @java_obj = nil
end

#closed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/jdbc-helper/connection/parameterized_statement.rb', line 63

def closed?
  @java_obj.nil? || @java_obj.isClosed
end

#set_param(idx, param) ⇒ Object 



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# File 'lib/jdbc-helper/connection/parameterized_statement.rb', line 25

def set_param(idx, param)
  case param
  when NilClass
    set_null idx, param
  when Fixnum
    @java_obj.setLong idx, param
  when Bignum
    @java_obj.setString idx, param.to_s # Safer
  when BigDecimal
    @java_obj.setBigDecimal idx, param.to_java
  when String
    @java_obj.setString idx, param
  when Float
    @java_obj.setDouble idx, param
  when Time
    @java_obj.setTimestamp idx, Java::java.sql.Timestamp.new((param.to_f * 1000).to_i)
  when Java::java.sql.Date
    @java_obj.setDate idx, param
  when Java::java.sql.Time
    @java_obj.setTime idx, param
  when Java::java.sql.Timestamp
    @java_obj.setTimestamp idx, param
  when Java::java.sql.Blob
    @java_obj.setBinaryStream idx, param.getBinaryStream#, param.length
  when Java::java.io.InputStream
    @java_obj.setBinaryStream idx, param
  else
    @java_obj.setString idx, param.to_s
  end
end