Package com.helger.commons.traits

Interface IGetterByIndexTrait

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface IGetterByIndexTrait

A generic convert Object to anything with convenience API.

Author:

Philip Helger

Method Summary

Modifier and Type	Method	Description
default BigDecimal	getAsBigDecimal(int nIndex)
default BigDecimal	getAsBigDecimal(int nIndex, BigDecimal aDefault)
default BigInteger	getAsBigInteger(int nIndex)
default BigInteger	getAsBigInteger(int nIndex, BigInteger aDefault)
default boolean	getAsBoolean(int nIndex)
default boolean	getAsBoolean(int nIndex, boolean bDefault)
default Boolean	getAsBooleanObj(int nIndex)
default byte	getAsByte(int nIndex)
default byte	getAsByte(int nIndex, byte nDefault)
default byte[]	getAsByteArray(int nIndex)
default Byte	getAsByteObj(int nIndex)
default char	getAsChar(int nIndex)
default char	getAsChar(int nIndex, char cDefault)
default char[]	getAsCharArray(int nIndex)
default char[]	getAsCharArray(int nIndex, char[] aDefault)
default Character	getAsCharObj(int nIndex)
default double	getAsDouble(int nIndex)
default double	getAsDouble(int nIndex, double dDefault)
default Double	getAsDoubleObj(int nIndex)
default float	getAsFloat(int nIndex)
default float	getAsFloat(int nIndex, float fDefault)
default Float	getAsFloatObj(int nIndex)
default int	getAsInt(int nIndex)
default int	getAsInt(int nIndex, int nDefault)
default Integer	getAsIntObj(int nIndex)
default LocalDate	getAsLocalDate(int nIndex)
default LocalDate	getAsLocalDate(int nIndex, LocalDate aDefault)
default LocalDate	getAsLocalDate(int nIndex, Locale aContentLocale)	Get the value as a String, interpreted as a LocalDate.
default LocalDateTime	getAsLocalDateTime(int nIndex)
default LocalDateTime	getAsLocalDateTime(int nIndex, LocalDateTime aDefault)
default LocalDateTime	getAsLocalDateTime(int nIndex, Locale aContentLocale)	Get the value as a String, interpreted as a LocalDateTime.
default LocalTime	getAsLocalTime(int nIndex)
default LocalTime	getAsLocalTime(int nIndex, LocalTime aDefault)
default LocalTime	getAsLocalTime(int nIndex, Locale aContentLocale)	Get the value as a String, interpreted as a LocalTime.
default long	getAsLong(int nIndex)
default long	getAsLong(int nIndex, long nDefault)
default Long	getAsLongObj(int nIndex)
default short	getAsShort(int nIndex)
default short	getAsShort(int nIndex, short nDefault)
default Short	getAsShortObj(int nIndex)
default Blob	getAsSqlBlob(int nIndex)
default Clob	getAsSqlClob(int nIndex)
default Date	getAsSqlDate(int nIndex)
default NClob	getAsSqlNClob(int nIndex)
default RowId	getAsSqlRowId(int nIndex)
default Time	getAsSqlTime(int nIndex)
default Timestamp	getAsSqlTimestamp(int nIndex)
default String	getAsString(int nIndex)
default String	getAsString(int nIndex, String sDefault)
default ICommonsList<String>	getAsStringList(int nIndex)	Get a list of all attribute values with the same name.
default ICommonsList<String>	getAsStringList(int nIndex, ICommonsList<String> aDefault)	Get a list of all attribute values with the same name.
default ICommonsOrderedSet<String>	getAsStringSet(int nIndex)	Get a set of all attribute values with the same name.
default ICommonsOrderedSet<String>	getAsStringSet(int nIndex, ICommonsOrderedSet<String> aDefault)	Get a set of all attribute values with the same name.
default <T> T	getCastedValue(int nIndex)	Get the contained value casted to the return type.
default <T> T	getCastedValue(int nIndex, Class<T> aClass)	Get the contained value casted to the specified class.
default <T> T	getCastedValue(int nIndex, T aDefault)	Get the contained value casted to the return type.
default <T> T	getCastedValue(int nIndex, T aDefault, Class<T> aClass)	Get the contained value casted to the specified class.
default <T> T	getConvertedValue(int nIndex, Class<T> aClass)	Get the contained value converted using TypeConverter to the passed class.
default <T> T	getConvertedValue(int nIndex, T aDefault, Class<T> aClass)	Get the contained value converted using TypeConverter to the passed class.
default <T> T	getSafeCastedValue(int nIndex, Class<T> aClass)	Get the contained value casted to the specified class, but only if the cast is possible.
default <T> T	getSafeCastedValue(int nIndex, T aDefault, Class<T> aClass)	Get the contained value casted to the specified class, but only if the cast is possible.
Object	getValue(int nIndex)	Get the value at the specified index.
default Class<?>	getValueClass(int nIndex)
default boolean	hasNoValue(int nIndex)
default boolean	hasStringValue(int nIndex, String sDesiredValue)	Check if a attribute with the given name is present in the request and has the specified value.
default boolean	hasStringValue(int nIndex, String sDesiredValue, boolean bDefault)	Check if a attribute with the given name is present in the request and has the specified value.
default boolean	hasValue(int nIndex)
default void	onSafeCastError(int nIndex, Class<?> aClass, Object aValue)	Implement this method to handle cases of getSafeCastedValue(int, Object, Class) that failed because invalid provided class.

Method Detail

getValue

@Nullable
Object getValue(@Nonnegative
                int nIndex)

Get the value at the specified index.

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

The value at the specified index. No null constraints applicable.

getValueClass

@Nullable
default Class<?> getValueClass(@Nonnegative
                               int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

The class of the value or null if no value is contained.

hasValue

default boolean hasValue(@Nonnegative
                         int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

true if the value is not null. Same as getValue()!=null.

hasNoValue

default boolean hasNoValue(@Nonnegative
                           int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

true if the value is null. Same as getValue()==null.

getCastedValue

@Nullable
default <T> T getCastedValue(@Nonnegative
                             int nIndex)

Get the contained value casted to the return type.

Type Parameters:

T - Destination type

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

The object value casted to the passed class. May be null if the contained value is null.

Throws:

ClassCastException - in case the value types are not convertible

getCastedValue

@Nullable
default <T> T getCastedValue(@Nonnegative
                             int nIndex,
                             @Nullable
                             T aDefault)

Get the contained value casted to the return type.

Type Parameters:

T - Destination type

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

aDefault - The value to be returned if the retrieved value is null .

Returns:

The object value casted to the passed class. May be null if the contained value is null.

Throws:

ClassCastException - in case the value types are not convertible

getCastedValue

@Nullable
default <T> T getCastedValue(@Nonnegative
                             int nIndex,
                             @Nonnull
                             Class<T> aClass)

Get the contained value casted to the specified class.

Type Parameters:

T - Destination type

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

aClass - The class to cast to.

Returns:

The object value casted to the passed class. May be null if the contained value is null.

Throws:

ClassCastException - in case the value types are not convertible

getCastedValue

@Nullable
default <T> T getCastedValue(@Nonnegative
                             int nIndex,
                             @Nullable
                             T aDefault,
                             @Nonnull
                             Class<T> aClass)

Get the contained value casted to the specified class.

Type Parameters:

T - Destination type

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

aDefault - The value to be returned if the retrieved value is null .

aClass - The class to cast to.

Returns:

The object value casted to the passed class. May be null if the contained value is null.

Throws:

ClassCastException - in case the value types are not convertible

getSafeCastedValue

@Nullable
default <T> T getSafeCastedValue(@Nonnegative
                                 int nIndex,
                                 @Nonnull
                                 Class<T> aClass)

Get the contained value casted to the specified class, but only if the cast is possible.

Type Parameters:

T - Destination type

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

aClass - The class to cast to.

Returns:

The object value casted to the passed class. May be null if the contained value is null.

Throws:

ClassCastException - in case the value types are not convertible

onSafeCastError

default void onSafeCastError(@Nonnegative
                             int nIndex,
                             @Nonnull
                             Class<?> aClass,
                             @Nonnull
                             Object aValue)

Implement this method to handle cases of getSafeCastedValue(int, Object, Class) that failed because invalid provided class.

 "Index '" + nIndex + "' is present, but not as a " + aClass + " but as a " + aValue.getClass ()
 

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

aClass - The class that was desired

aValue - The value that was retrieved and cannot be casted to the class

Since:

9.0.1

getSafeCastedValue

@Nullable
default <T> T getSafeCastedValue(@Nonnegative
                                 int nIndex,
                                 @Nullable
                                 T aDefault,
                                 @Nonnull
                                 Class<T> aClass)

Get the contained value casted to the specified class, but only if the cast is possible.

Type Parameters:

T - Destination type

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

aDefault - The value to be returned if the retrieved value is null .

aClass - The class to cast to.

Returns:

The object value casted to the passed class. May be null if the contained value is null.

Throws:

ClassCastException - in case the value types are not convertible

getConvertedValue

@Nullable
default <T> T getConvertedValue(@Nonnegative
                                int nIndex,
                                @Nonnull
                                Class<T> aClass)

Get the contained value converted using TypeConverter to the passed class.

Type Parameters:

T - Destination type

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

aClass - The class to convert to.

Returns:

The object value casted to the passed class. May be null if the contained value is null.

Throws:

TypeConverterException - in case of an error

getConvertedValue

@Nullable
default <T> T getConvertedValue(@Nonnegative
                                int nIndex,
                                @Nullable
                                T aDefault,
                                @Nonnull
                                Class<T> aClass)

Get the contained value converted using TypeConverter to the passed class.

Type Parameters:

T - Destination type

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

aDefault - The value to be returned if the retrieved value is null or if type conversion fails.

aClass - The class to convert to.

Returns:

The object value casted to the passed class. May be null if the contained value is null.

Throws:

TypeConverterException - in case of an error

getAsBoolean

default boolean getAsBoolean(@Nonnegative
                             int nIndex)

getAsBoolean

default boolean getAsBoolean(@Nonnegative
                             int nIndex,
                             boolean bDefault)

getAsByte

default byte getAsByte(@Nonnegative
                       int nIndex)

getAsByte

default byte getAsByte(@Nonnegative
                       int nIndex,
                       byte nDefault)

getAsChar

default char getAsChar(@Nonnegative
                       int nIndex)

getAsChar

default char getAsChar(@Nonnegative
                       int nIndex,
                       char cDefault)

getAsDouble

default double getAsDouble(@Nonnegative
                           int nIndex)

getAsDouble

default double getAsDouble(@Nonnegative
                           int nIndex,
                           double dDefault)

getAsFloat

default float getAsFloat(@Nonnegative
                         int nIndex)

getAsFloat

default float getAsFloat(@Nonnegative
                         int nIndex,
                         float fDefault)

getAsInt

default int getAsInt(@Nonnegative
                     int nIndex)

getAsInt

default int getAsInt(@Nonnegative
                     int nIndex,
                     int nDefault)

getAsLong

default long getAsLong(@Nonnegative
                       int nIndex)

getAsLong

default long getAsLong(@Nonnegative
                       int nIndex,
                       long nDefault)

getAsShort

default short getAsShort(@Nonnegative
                         int nIndex)

getAsShort

default short getAsShort(@Nonnegative
                         int nIndex,
                         short nDefault)

getAsString

@Nullable
default String getAsString(@Nonnegative
                           int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

getConvertedValue (nIndex,null,String.class)

See Also:

getConvertedValue(int,Object,Class)

getAsString

@Nullable
default String getAsString(@Nonnegative
                           int nIndex,
                           @Nullable
                           String sDefault)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

sDefault - The value to be returned if the retrieved value is null .

Returns:

getConvertedValue (nIndex,sDefault, String.class)

See Also:

getConvertedValue(int,Object,Class)

getAsCharArray

@Nullable
default char[] getAsCharArray(@Nonnegative
                              int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

getConvertedValue (nIndex,null,char[].class)

See Also:

getConvertedValue(int,Object,Class)

getAsCharArray

@Nullable
default char[] getAsCharArray(@Nonnegative
                              int nIndex,
                              @Nullable
                              char[] aDefault)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

aDefault - The value to be returned if the retrieved value is null .

Returns:

getConvertedValue (nIndex,aDefault, char[].class)

See Also:

getConvertedValue(int,Object,Class)

getAsBigDecimal

@Nullable
default BigDecimal getAsBigDecimal(@Nonnegative
                                   int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

getConvertedValue (nIndex,null,BigDecimal.class)

See Also:

getConvertedValue(int,Object,Class)

getAsBigDecimal

@Nullable
default BigDecimal getAsBigDecimal(@Nonnegative
                                   int nIndex,
                                   @Nullable
                                   BigDecimal aDefault)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

aDefault - The value to be returned if the retrieved value is null .

Returns:

getConvertedValue (nIndex,aDefault,BigDecimal.class)

See Also:

getConvertedValue(int,Object,Class)

getAsBigInteger

@Nullable
default BigInteger getAsBigInteger(@Nonnegative
                                   int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

getConvertedValue (nIndex,null,BigInteger.class)

See Also:

getConvertedValue(int,Object,Class)

getAsBigInteger

@Nullable
default BigInteger getAsBigInteger(@Nonnegative
                                   int nIndex,
                                   @Nullable
                                   BigInteger aDefault)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

aDefault - The value to be returned if the retrieved value is null .

Returns:

getConvertedValue (nIndex,aDefault,BigInteger.class)

See Also:

getConvertedValue(int,Object,Class)

getAsLocalDate

@Nullable
default LocalDate getAsLocalDate(@Nonnegative
                                 int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

getConvertedValue (nIndex,null,LocalDate.class)

See Also:

getConvertedValue(int,Object,Class)

getAsLocalDate

@Nullable
default LocalDate getAsLocalDate(@Nonnegative
                                 int nIndex,
                                 @Nullable
                                 LocalDate aDefault)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

aDefault - The value to be returned if the retrieved value is null .

Returns:

getConvertedValue (nIndex,aDefault,LocalDate.class)

See Also:

getConvertedValue(int,Object,Class)

getAsLocalTime

@Nullable
default LocalTime getAsLocalTime(@Nonnegative
                                 int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

getConvertedValue (nIndex,null,LocalTime.class)

See Also:

getConvertedValue(int,Object,Class)

getAsLocalTime

@Nullable
default LocalTime getAsLocalTime(@Nonnegative
                                 int nIndex,
                                 @Nullable
                                 LocalTime aDefault)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

aDefault - The value to be returned if the retrieved value is null .

Returns:

getConvertedValue (nIndex,aDefault,LocalTime.class)

See Also:

getConvertedValue(int,Object,Class)

getAsLocalDateTime

@Nullable
default LocalDateTime getAsLocalDateTime(@Nonnegative
                                         int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

getConvertedValue (nIndex,null,LocalDateTime.class)

See Also:

getConvertedValue(int,Object,Class)

getAsLocalDateTime

@Nullable
default LocalDateTime getAsLocalDateTime(@Nonnegative
                                         int nIndex,
                                         @Nullable
                                         LocalDateTime aDefault)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

aDefault - The value to be returned if the retrieved value is null .

Returns:

getConvertedValue (nIndex,aDefault,LocalDateTime.class)

See Also:

getConvertedValue(int,Object,Class)

getAsByteArray

@Nullable
default byte[] getAsByteArray(@Nonnegative
                              int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

getConvertedValue (nIndex,null,byte[].class)

See Also:

getConvertedValue(int,Object,Class)

getAsBooleanObj

@Nullable
default Boolean getAsBooleanObj(@Nonnegative
                                int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

getConvertedValue (nIndex,null,Boolean.class)

See Also:

getConvertedValue(int,Object,Class)

getAsByteObj

@Nullable
default Byte getAsByteObj(@Nonnegative
                          int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

getConvertedValue (nIndex,null,Byte.class)

See Also:

getConvertedValue(int,Object,Class)

getAsCharObj

@Nullable
default Character getAsCharObj(@Nonnegative
                               int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

getConvertedValue (nIndex,null,Character.class)

See Also:

getConvertedValue(int,Object,Class)

getAsDoubleObj

@Nullable
default Double getAsDoubleObj(@Nonnegative
                              int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

getConvertedValue (nIndex,null,Double.class)

See Also:

getConvertedValue(int,Object,Class)

getAsFloatObj

@Nullable
default Float getAsFloatObj(@Nonnegative
                            int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

getConvertedValue (nIndex,null,Float.class)

See Also:

getConvertedValue(int,Object,Class)

getAsIntObj

@Nullable
default Integer getAsIntObj(@Nonnegative
                            int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

getConvertedValue (nIndex,null,Integer.class)

See Also:

getConvertedValue(int,Object,Class)

getAsLongObj

@Nullable
default Long getAsLongObj(@Nonnegative
                          int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

getConvertedValue (nIndex,null,Long.class)

See Also:

getConvertedValue(int,Object,Class)

getAsShortObj

@Nullable
default Short getAsShortObj(@Nonnegative
                            int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

getConvertedValue (nIndex,null,Short.class)

See Also:

getConvertedValue(int,Object,Class)

getAsSqlBlob

@Nullable
default Blob getAsSqlBlob(@Nonnegative
                          int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

getConvertedValue (nIndex,null,Blob.class)

See Also:

getConvertedValue(int,Object,Class)

getAsSqlClob

@Nullable
default Clob getAsSqlClob(@Nonnegative
                          int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

getConvertedValue (nIndex,null,Clob.class)

See Also:

getConvertedValue(int,Object,Class)

getAsSqlDate

@Nullable
default Date getAsSqlDate(@Nonnegative
                          int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

getConvertedValue (nIndex,null,Date.class)

See Also:

getConvertedValue(int,Object,Class)

getAsSqlNClob

@Nullable
default NClob getAsSqlNClob(@Nonnegative
                            int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

getConvertedValue (nIndex,null,NClob.class)

See Also:

getConvertedValue(int,Object,Class)

getAsSqlRowId

@Nullable
default RowId getAsSqlRowId(@Nonnegative
                            int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

getConvertedValue (nIndex,null,RowId.class)

See Also:

getConvertedValue(int,Object,Class)

getAsSqlTime

@Nullable
default Time getAsSqlTime(@Nonnegative
                          int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

getConvertedValue (nIndex,null,Time.class)

See Also:

getConvertedValue(int,Object,Class)

getAsSqlTimestamp

@Nullable
default Timestamp getAsSqlTimestamp(@Nonnegative
                                    int nIndex)

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

getConvertedValue (nIndex,null,Timestamp.class)

See Also:

getConvertedValue(int,Object,Class)

getAsLocalDate

@Nullable
default LocalDate getAsLocalDate(@Nonnegative
                                 int nIndex,
                                 @Nonnull
                                 Locale aContentLocale)

Get the value as a String, interpreted as a LocalDate.

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

aContentLocale - Locale to use for conversion.

Returns:

null if either the conversion to String or the parsing of the String failed.

getAsLocalTime

@Nullable
default LocalTime getAsLocalTime(@Nonnegative
                                 int nIndex,
                                 @Nonnull
                                 Locale aContentLocale)

Get the value as a String, interpreted as a LocalTime.

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

aContentLocale - Locale to use for conversion.

Returns:

null if either the conversion to String or the parsing of the String failed.

getAsLocalDateTime

@Nullable
default LocalDateTime getAsLocalDateTime(@Nonnegative
                                         int nIndex,
                                         @Nonnull
                                         Locale aContentLocale)

Get the value as a String, interpreted as a LocalDateTime.

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

aContentLocale - Locale to use for conversion.

Returns:

null if either the conversion to String or the parsing of the String failed.

getAsStringList

@Nullable
default ICommonsList<String> getAsStringList(@Nonnegative
                                             int nIndex)

Get a list of all attribute values with the same name.

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

null if no such attribute value exists

getAsStringList

@Nullable
default ICommonsList<String> getAsStringList(@Nonnegative
                                             int nIndex,
                                             @Nullable
                                             ICommonsList<String> aDefault)

Get a list of all attribute values with the same name.

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

aDefault - The default value to be returned, if no such attribute is present.

Returns:

aDefault if no such attribute value exists

getAsStringSet

@Nullable
default ICommonsOrderedSet<String> getAsStringSet(@Nonnegative
                                                  int nIndex)

Get a set of all attribute values with the same name.

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

Returns:

null if no such attribute value exists

getAsStringSet

@Nullable
default ICommonsOrderedSet<String> getAsStringSet(@Nonnegative
                                                  int nIndex,
                                                  @Nullable
                                                  ICommonsOrderedSet<String> aDefault)

Get a set of all attribute values with the same name.

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

aDefault - The default value to be returned, if no such attribute is present.

Returns:

aDefault if no such attribute value exists

hasStringValue

default boolean hasStringValue(@Nonnegative
                               int nIndex,
                               @Nullable
                               String sDesiredValue)

Check if a attribute with the given name is present in the request and has the specified value.

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

sDesiredValue - The value to be matched

Returns:

true if an attribute with the given name is present and has the desired value

hasStringValue

default boolean hasStringValue(@Nonnegative
                               int nIndex,
                               @Nullable
                               String sDesiredValue,
                               boolean bDefault)

Check if a attribute with the given name is present in the request and has the specified value. If no such attribute is present, the passed default value is returned.

Parameters:

nIndex - The index to be accessed. Should be ≥ 0.

sDesiredValue - The value to be matched

bDefault - the default value to be returned, if the specified attribute is not present

Returns:

true if an attribute with the given name is present and has the desired value, false if the attribute is present but has a different value. If the attribute is not present, the default value is returned.