org.apache.openjpa.persistence
Class JPAProperties

java.lang.Object
  org.apache.openjpa.persistence.JPAProperties

public class JPAProperties
extends Object

Enumerates configuration property keys defined in JPA 2.0 Specification.
Provides static utility functions to read their values from supplied map of properties.
Provides static utility functions to convert them to values that are fit for OpenJPA implementation.

Since:

2.0.0

Author:

Pinaki Poddar

Field Summary

static String	CACHE_MODE
static String	CACHE_RETRIEVE_MODE
static String	CACHE_STORE_MODE
static String	DATASOURCE
static String	DATASOURCE_JTA
static String	DATASOURCE_NONJTA
static String	JDBC_DRIVER
static String	JDBC_PASSWORD
static String	JDBC_URL
static String	JDBC_USER
static String	LOCK_SCOPE
static String	LOCK_TIMEOUT
static String	PREFIX
static String	PROVIDER
static String	QUERY_TIMEOUT
static String	TRANSACTION_TYPE
static String	VALIDATE_FACTORY
static String	VALIDATE_GROUP_DEFAULT
static String	VALIDATE_MODE
static String	VALIDATE_PRE_PERSIST
static String	VALIDATE_PRE_REMOVE
static String	VALIDATE_PRE_UPDATE

Constructor Summary

JPAProperties()

Method Summary

static <T> T	convertToKernelValue(Class<T> resultType, String key, Object value) Convert the given user value to a value consumable by OpenJPA kernel constructs.
static Object	convertToUserValue(String key, Object value) Convert the given kernel value to a value visible to the user.
static String	getBeanProperty(String key) Gets a bean-style property name from the given key.
static <E extends Enum<E>> E	getEnumValue(Class<E> type, E[] values, Object val) Gets a enum value of the given type from the given value.
static <E extends Enum<E>> E	getEnumValue(Class<E> type, E[] values, String key, Map<String,Object> prop) Gets a enum value of the given type from the given properties looking up with the given key.
static <E extends Enum<E>> E	getEnumValue(Class<E> type, Object val) Gets a enum value of the given type from the given value.
static <E extends Enum<E>> E	getEnumValue(Class<E> type, String key, Map<String,Object> prop) Get the value of the given key from the given properties after converting it to the given enumerated value.
static boolean	isValidKey(String key) Is the given key appears to be a valid JPA specification defined key?

Methods inherited from class java.lang.Object

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

Field Detail

PREFIX

public static final String PREFIX

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Constant Field Values

PROVIDER

public static final String PROVIDER

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Constant Field Values

TRANSACTION_TYPE

public static final String TRANSACTION_TYPE

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Constant Field Values

DATASOURCE

public static final String DATASOURCE

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Constant Field Values

DATASOURCE_JTA

public static final String DATASOURCE_JTA

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Constant Field Values

DATASOURCE_NONJTA

public static final String DATASOURCE_NONJTA

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Constant Field Values

JDBC_DRIVER

public static final String JDBC_DRIVER

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Constant Field Values

JDBC_URL

public static final String JDBC_URL

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Constant Field Values

JDBC_USER

public static final String JDBC_USER

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Constant Field Values

JDBC_PASSWORD

public static final String JDBC_PASSWORD

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Constant Field Values

LOCK_SCOPE

public static final String LOCK_SCOPE

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Constant Field Values

LOCK_TIMEOUT

public static final String LOCK_TIMEOUT

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Constant Field Values

QUERY_TIMEOUT

public static final String QUERY_TIMEOUT

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Constant Field Values

CACHE_MODE

public static final String CACHE_MODE

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Constant Field Values

CACHE_STORE_MODE

public static final String CACHE_STORE_MODE

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Constant Field Values

CACHE_RETRIEVE_MODE

public static final String CACHE_RETRIEVE_MODE

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Constant Field Values

VALIDATE_FACTORY

public static final String VALIDATE_FACTORY

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Constant Field Values

VALIDATE_MODE

public static final String VALIDATE_MODE

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Constant Field Values

VALIDATE_PRE_PERSIST

public static final String VALIDATE_PRE_PERSIST

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Constant Field Values

VALIDATE_PRE_REMOVE

public static final String VALIDATE_PRE_REMOVE

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Constant Field Values

VALIDATE_PRE_UPDATE

public static final String VALIDATE_PRE_UPDATE

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Constant Field Values

VALIDATE_GROUP_DEFAULT

public static final String VALIDATE_GROUP_DEFAULT

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Constant Field Values

Constructor Detail

JPAProperties

public JPAProperties()

Method Detail

isValidKey

public static boolean isValidKey(String key)

Is the given key appears to be a valid JPA specification defined key?

Returns:

true if the given string merely prefixed with javax.persistence.. Does not really check all the keys defined in the specification.

getBeanProperty

public static String getBeanProperty(String key)

Gets a bean-style property name from the given key.

Parameters:

key - must begin with JPA property prefix javax.persistence

Returns:

concatenates each part of the string leaving out javax.persistence. prefix. Part of string is what appears between DOT character.

convertToKernelValue

public static <T> T convertToKernelValue(Class<T> resultType,
                                         String key,
                                         Object value)

Convert the given user value to a value consumable by OpenJPA kernel constructs.

Returns:

the same value if the given key is not a valid JPA property key or the value is null.

convertToUserValue

public static Object convertToUserValue(String key,
                                        Object value)

Convert the given kernel value to a value visible to the user.

Returns:

the same value if the given key is not a valid JPA property key or the value is null.

getEnumValue

public static <E extends Enum<E>> E getEnumValue(Class<E> type,
                                                 String key,
                                                 Map<String,Object> prop)

Get the value of the given key from the given properties after converting it to the given enumerated value.

getEnumValue

public static <E extends Enum<E>> E getEnumValue(Class<E> type,
                                                 E[] values,
                                                 String key,
                                                 Map<String,Object> prop)

Gets a enum value of the given type from the given properties looking up with the given key. Converts the original value from a String or ordinal number, if necessary. Conversion from an integral number to enum value is only attempted if the allowed enum values are provided as non-null, non-empty array.

Returns:

null if the key does not exist in the given properties.

getEnumValue

public static <E extends Enum<E>> E getEnumValue(Class<E> type,
                                                 Object val)

Gets a enum value of the given type from the given value. Converts the original value from a String, if necessary.

Returns:

null if the key does not exist in the given properties.

getEnumValue

public static <E extends Enum<E>> E getEnumValue(Class<E> type,
                                                 E[] values,
                                                 Object val)

Gets a enum value of the given type from the given value. Converts the original value from a String or ordinal number, if necessary. Conversion from an integral number to enum value is only attempted if the allowed enum values are provided as non-null, non-empty array.

Returns:

null if the key does not exist in the given properties.