Package com.evolveum.midpoint.repo.sqlbase.filtering

Class ValueFilterValues<T,V>

java.lang.Object

com.evolveum.midpoint.repo.sqlbase.filtering.ValueFilterValues<T,V>

Type Parameters:

T - type of filter value

V - type of value after conversion (can be the same as T)

public abstract class ValueFilterValues<T,V>
extends Object

Object wraps zero, one or multiple values and makes their processing easier. Instead of just wrapping the values it uses the whole filter object to utilize its convenience methods. Returned values are typed to Object, because they can be converted from original type. Conversion is moved into this class, so the client code doesn't have to handle translation from PrismPropertyValue to "real value" and then to convert it. Both singleValue() and allValues() are handled the same way.

Field Summary

Fields

Modifier and Type	Field	Description
protected @NotNull PropertyValueFilter<T>	filter

Method Summary

Modifier and Type	Method	Description
@NotNull List<V>	allValues()	Returns multiple values, all converted, or empty list - never null.
@NotNull List<T>	allValuesRaw()	Returns multiple real values without conversion or empty list - never null.
static <T> ValueFilterValues<T,T>	from(@NotNull PropertyValueFilter<T> filter)
static <T,V> ValueFilterValues<T,V>	from(@NotNull PropertyValueFilter<T> filter, @Nullable Function<T,V> conversionFunction)
static <T,V> ValueFilterValues<T,V>	from(@NotNull PropertyValueFilter<T> filter, com.querydsl.core.types.Expression<?> expression)
boolean	isEmpty()
boolean	isMultiValue()
abstract V	singleValue()	Returns single value or null or fails if there are multiple values, all converted.
abstract T	singleValueRaw()	Returns single value or null or fails if there are multiple values without conversion.

Methods inherited from class java.lang.Object

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

Field Detail

filter

@NotNull
protected final @NotNull PropertyValueFilter<T> filter

Method Detail

from

public static <T> ValueFilterValues<T,T> from(@NotNull
                                                    @NotNull PropertyValueFilter<T> filter)

from

public static <T,V> ValueFilterValues<T,V> from(@NotNull
                                                            @NotNull PropertyValueFilter<T> filter,
                                                            com.querydsl.core.types.Expression<?> expression)

from

public static <T,V> ValueFilterValues<T,V> from(@NotNull
                                                            @NotNull PropertyValueFilter<T> filter,
                                                            @Nullable
                                                            @Nullable Function<T,V> conversionFunction)

singleValue

@Nullable
public abstract V singleValue()
                       throws QueryException

Returns single value or null or fails if there are multiple values, all converted. If conversion function was provided any IllegalArgumentException or ClassCastException will be re-wrapped as QueryException, other runtime exceptions are not intercepted.

Throws:

QueryException

singleValueRaw

@Nullable
public abstract T singleValueRaw()

Returns single value or null or fails if there are multiple values without conversion. Null-safe version of ValueFilter.getSingleValue() followed by PrismPropertyValue.getRealValue().

allValues

@NotNull
public @NotNull List<V> allValues()

Returns multiple values, all converted, or empty list - never null.

allValuesRaw

@NotNull
public @NotNull List<T> allValuesRaw()

Returns multiple real values without conversion or empty list - never null.

isEmpty

public boolean isEmpty()

isMultiValue

public boolean isMultiValue()