org.firebirdsql.gds

Class ParameterBufferHelper

java.lang.Object

org.firebirdsql.gds.ParameterBufferHelper

public class ParameterBufferHelper
extends java.lang.Object

This class maps the extended JDBC properties to parameter buffer types (for transaction and database parameter buffers). It uses java.lang.reflection to determine correct type of the parameter passed to the Driver.connect(String, Properties) method.

Version:

1.0

Author:

Roman Rokytskyy, Mark Rotteveel

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ParameterBufferHelper.DpbParameterType Dpb type, which is the name, the key for the dpb and its value type.
static class	ParameterBufferHelper.DpbValueType Enum with the various Dpb value types, and conversion from String to that type.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	DPB_PREFIX
static java.lang.String	ISC_DPB_TYPES_RESOURCE
static java.lang.String	TPB_PREFIX

Constructor Summary

Constructors

Constructor and Description
ParameterBufferHelper()

Method Summary

Modifier and Type	Method and Description
static java.lang.Integer	getDpbKey(java.lang.String name) Get integer value of the DPB key corresponding to the specified name.
static java.util.Map<java.lang.String,java.lang.Integer>	getDpbMap() Get mapping between DPB names and their keys.
static ParameterBufferHelper.DpbParameterType	getDpbParameterType(java.lang.String name) Gets the ParameterBufferHelper.DpbParameterType for the specified dpb item name (short or long)
static java.lang.Integer	getTpbParam(java.lang.String name) Get value of TPB parameter for the specified name.
static java.lang.Object	parseDpbString(java.lang.String name, java.lang.Object value)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DPB_PREFIX

public static final java.lang.String DPB_PREFIX

See Also:

Constant Field Values

TPB_PREFIX

public static final java.lang.String TPB_PREFIX

See Also:

Constant Field Values

ISC_DPB_TYPES_RESOURCE

public static final java.lang.String ISC_DPB_TYPES_RESOURCE

See Also:

Constant Field Values

Constructor Detail

ParameterBufferHelper

public ParameterBufferHelper()

Method Detail

getDpbKey

public static java.lang.Integer getDpbKey(java.lang.String name)

Get integer value of the DPB key corresponding to the specified name.

Parameters:

name - name of the key.

Returns:

instance of Integer corresponding to the specified name or null if value is not known.

getDpbParameterType

public static ParameterBufferHelper.DpbParameterType getDpbParameterType(java.lang.String name)

Gets the ParameterBufferHelper.DpbParameterType for the specified dpb item name (short or long)

Parameters:

name - Name of the dpb item

Returns:

DpbParameterType instance, or null if there is no item with this name

getDpbMap

public static java.util.Map<java.lang.String,java.lang.Integer> getDpbMap()

Get mapping between DPB names and their keys.

Returns:

instance of Map, where key is the name of DPB parameter, value is its DPB key.

parseDpbString

public static java.lang.Object parseDpbString(java.lang.String name,
                                              java.lang.Object value)

getTpbParam

public static java.lang.Integer getTpbParam(java.lang.String name)

Get value of TPB parameter for the specified name. This method tries to match string representation of the TPB parameter with its value.

Parameters:

name - string representation of TPB parameter, can have "isc_tpb_" prefix.

Returns:

value corresponding to the specified parameter name or null if nothing was found.