ItemsByTag (Hazelcast Root 5.4.0-SNAPSHOT API)

java.lang.Object
- com.hazelcast.jet.datamodel.ItemsByTag

```
public final class ItemsByTag
extends java.lang.Object
```
A heterogeneous map from Tag<E> to E, where E can be different for each tag. The value associated with a tag may be null.
This is a less type-safe, but more flexible alternative to a tuple. The tuple has a fixed number of integer-indexed, statically-typed fields, and ItemsByTag has a variable number of tag-indexed fields whose whose static type is encoded in the tags.

Since:

Jet 3.0

Constructor Summary

Constructors
Constructor Description

ItemsByTag()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(java.lang.Object o)`
`<E> E`	`get(Tag<E> tag)`	Retrieves the value associated with the supplied tag and throws an exception if there is none.
`int`	`hashCode()`
`static ItemsByTag`	`itemsByTag(java.lang.Object... tagsAndVals)`	Accepts an argument list of alternating tags and values, interprets them as a list of tag-value pairs, and returns an `ItemsByTag` populated with these pairs.
`<E> void`	`put(Tag<E> tag, E value)`	Associates the supplied value with the supplied tag.
`java.lang.String`	`toString()`

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - ItemsByTag
```
public ItemsByTag()
```
- Method Detail
  - itemsByTag
```
@Nonnull
public static ItemsByTag itemsByTag(@Nonnull
                                    java.lang.Object... tagsAndVals)
```
    Accepts an argument list of alternating tags and values, interprets them as a list of tag-value pairs, and returns an ItemsByTag populated with these pairs.
  - get
```
@Nullable
public <E> E get(@Nonnull
                 Tag<E> tag)
```
    Retrieves the value associated with the supplied tag and throws an exception if there is none. The tag argument must not be null, but the returned value may be, if a null value is explicitly associated with a tag.
    
    Throws:
    
    java.lang.IllegalArgumentException - if there is no value associated with the supplied tag
  - put
```
public <E> void put(@Nonnull
                    Tag<E> tag,
                    @Nullable
                    E value)
```
    Associates the supplied value with the supplied tag. The tag must not be null, but the value may be, and in that case the tag will be associated with a null value.
  - equals
```
public boolean equals(java.lang.Object o)
```
    Overrides:
    
    equals in class java.lang.Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class java.lang.Object
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object