程序包 org.babyfish.jimmer.sql.runtime

类 ScalarProvider<T,S>

java.lang.Object

org.babyfish.jimmer.sql.runtime.ScalarProvider<T,S>

public abstract class ScalarProvider<T,S>
extends Object

字段概要

字段

修饰符和类型	字段	说明
static final ScalarProvider<UUID,byte[]>	UUID_BY_BYTE_ARRAY
static final ScalarProvider<UUID,String>	UUID_BY_STRING

构造器概要

构造器

限定符	构造器	说明
protected	ScalarProvider()
	ScalarProvider(Class<T> scalarType, Class<S> sqlType)

方法概要

修饰符和类型	方法	说明
static <E extends Enum<E>> ScalarProvider<E,Integer>	enumProviderByInt(Class<E> enumType)
static <E extends Enum<E>> ScalarProvider<E,Integer>	enumProviderByInt(Class<E> enumType, Consumer<EnumProviderBuilder<E,Integer>> block)
static <E extends Enum<E>> ScalarProvider<E,String>	enumProviderByString(Class<E> enumType)
static <E extends Enum<E>> ScalarProvider<E,String>	enumProviderByString(Class<E> enumType, Consumer<EnumProviderBuilder<E,String>> block)
Collection<org.babyfish.jimmer.meta.ImmutableProp>	getHandledProps()	User can override this method, it can return null, empty or handled property.
final @NotNull Type	getScalarType()
final @NotNull Class<S>	getSqlType()
abstract T	toScalar(S sqlValue)
abstract S	toSql(T scalarValue)

从类继承的方法 java.lang.Object

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

字段详细资料

UUID_BY_BYTE_ARRAY

public static final ScalarProvider<UUID,byte[]> UUID_BY_BYTE_ARRAY

UUID_BY_STRING

public static final ScalarProvider<UUID,String> UUID_BY_STRING

构造器详细资料

ScalarProvider

public ScalarProvider(Class<T> scalarType,
 Class<S> sqlType)

ScalarProvider

protected ScalarProvider()

方法详细资料

getScalarType

@NotNull
public final @NotNull Type getScalarType()

getSqlType

@NotNull
public final @NotNull Class<S> getSqlType()

toScalar

@NotNull
public abstract T toScalar(@NotNull
 S sqlValue)
                    throws Exception

抛出:

Exception

toSql

@NotNull
public abstract S toSql(@NotNull
 T scalarValue)
                 throws Exception

抛出:

Exception

getHandledProps

public Collection<org.babyfish.jimmer.meta.ImmutableProp> getHandledProps()

User can override this method, it can return null, empty or handled property.

• Null or empty: Global scalar provider, can be applied to any properties
• Otherwise: Property-specific scalar provider

Actually, there are two ways to add property-specific scalar providers

• Override getHandledProps()
• Use JSqlClient.Builder.addScalarProvider(ImmutableProp, ScalarProvider) or JSqlClient.Builder.addScalarProvider(TypedProp, ScalarProvider)

返回:

Null or handled property.

enumProviderByString

public static <E extends Enum<E>>
ScalarProvider<E,String> enumProviderByString(Class<E> enumType)

enumProviderByString

public static <E extends Enum<E>>
ScalarProvider<E,String> enumProviderByString(Class<E> enumType,
 Consumer<EnumProviderBuilder<E,String>> block)

enumProviderByInt

public static <E extends Enum<E>>
ScalarProvider<E,Integer> enumProviderByInt(Class<E> enumType)

enumProviderByInt

public static <E extends Enum<E>>
ScalarProvider<E,Integer> enumProviderByInt(Class<E> enumType,
 Consumer<EnumProviderBuilder<E,Integer>> block)