DataHolder

All Superinterfaces:

MutableDataSetter

All Known Subinterfaces:

MutableDataHolder, RendererBuilder

All Known Implementing Classes:

BuilderBase, DataSet, Document, DocxRenderer.Builder, FlexmarkHtmlConverter.Builder, Formatter.Builder, HtmlRenderer.Builder, MutableDataSet, MutableScopedDataSet, Parser.Builder, ScopedDataSet
```
public interface DataHolder
extends MutableDataSetter
```

Field Summary

Fields
Modifier and Type Field Description

static DataHolder NULL

Method Summary

All Methods Instance Methods Abstract Methods Default Methods Deprecated Methods
Modifier and Type	Method	Description
`boolean`	`contains(DataKeyBase<?> key)`
`default <T> T`	`get(DataKey<T> key)`	Deprecated.
`java.util.Map<? extends DataKeyBase<?>,java.lang.Object>`	`getAll()`
`java.util.Collection<? extends DataKeyBase<?>>`	`getKeys()`
`java.lang.Object`	`getOrCompute(DataKeyBase<?> key, DataValueFactory<?> factory)`	Get key if it exists or compute using supplier
`default MutableDataHolder`	`setIn(MutableDataHolder dataHolder)`
`default DataSet`	`toDataSet()`
`DataHolder`	`toImmutable()`
`MutableDataHolder`	`toMutable()`

Field Detail
- NULL
```
static final DataHolder NULL
```

Method Detail

getAll

@NotNull
java.util.Map<? extends DataKeyBase<?>,java.lang.Object> getAll()

getKeys

@NotNull
java.util.Collection<? extends DataKeyBase<?>> getKeys()

contains

boolean contains(@NotNull
                 DataKeyBase<?> key)

get
```
@Deprecated
@Nullable
default <T> T get(@NotNull
                  DataKey<T> key)
```
Deprecated.

Type Parameters:

T - Type returned by key

Parameters:

key - data key

Returns:

Use key.get(dataHolder) instead

setIn

@NotNull
default MutableDataHolder setIn(@NotNull
                                MutableDataHolder dataHolder)

Specified by:: setIn in interface MutableDataSetter

getOrCompute
```
java.lang.Object getOrCompute(@NotNull
                              DataKeyBase<?> key,
                              @NotNull
                              DataValueFactory<?> factory)
```
Get key if it exists or compute using supplier
Method used by DataKey classes to access data.
NOTE: MutableDataHolders will compute an absent key and add it to its dataSet. DataHolders will return computed value but not change contained dataSet because they are immutable. So value will be computed every time it is requested.

Parameters:

key - data key

factory - factory taking this data holder and computing/providing default value

Returns:

object value for the key

toMutable
```
@NotNull
MutableDataHolder toMutable()
```

toImmutable
```
@NotNull
DataHolder toImmutable()
```

toDataSet
```
@NotNull
default DataSet toDataSet()
```