```
public class IValue
extends Object
```
Java representation of a TorchScript value, which is implemented as tagged union that can be one of the supported types: https://pytorch.org/docs/stable/jit.html#types .
Calling toX methods for inappropriate types will throw IllegalStateException.
IValue objects are constructed with IValue.from(value), IValue.tupleFrom(value1, value2, ...), IValue.listFrom(value1, value2, ...), or one of the dict methods, depending on the key type.
Data is retrieved from IValue objects with the toX() methods. Note that str-type IValues must be extracted with toStr(), rather than Object.toString().
IValue objects may retain references to objects passed into their constructors, and may return references to their internal state from toX().

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static IValue`	`dictLongKeyFrom(Map<Long,IValue> map)`	Creates a new `IValue` of type `Dict[int, V]`.
`static IValue`	`dictStringKeyFrom(Map<String,IValue> map)`	Creates a new `IValue` of type `Dict[str, V]`.
`static IValue`	`from(boolean value)`	Creates a new `IValue` of type `bool`.
`static IValue`	`from(double value)`	Creates a new `IValue` of type `float`.
`static IValue`	`from(long value)`	Creates a new `IValue` of type `int`.
`static IValue`	`from(String value)`	Creates a new `IValue` of type `str`.
`static IValue`	`from(Tensor tensor)`	Creates a new `IValue` of type `Tensor`.
`boolean`	`isBool()`
`boolean`	`isBoolList()`
`boolean`	`isDictLongKey()`
`boolean`	`isDictStringKey()`
`boolean`	`isDouble()`
`boolean`	`isDoubleList()`
`boolean`	`isList()`
`boolean`	`isLong()`
`boolean`	`isLongList()`
`boolean`	`isNull()`
`boolean`	`isString()`
`boolean`	`isTensor()`
`boolean`	`isTensorList()`
`boolean`	`isTuple()`
`static IValue`	`listFrom(boolean... list)`	Creates a new `IValue` of type `List[bool]`.
`static IValue`	`listFrom(double... list)`	Creates a new `IValue` of type `List[float]`.
`static IValue`	`listFrom(long... list)`	Creates a new `IValue` of type `List[int]`.
`static IValue`	`listFrom(IValue... array)`	Creates a new `IValue` of type `List[T]`.
`static IValue`	`listFrom(Tensor... list)`	Creates a new `IValue` of type `List[Tensor]`.
`static IValue`	`optionalNull()`	Creates a new `IValue` of type `Optional` that contains no value.
`boolean`	`toBool()`
`boolean[]`	`toBoolList()`
`Map<Long,IValue>`	`toDictLongKey()`
`Map<String,IValue>`	`toDictStringKey()`
`double`	`toDouble()`
`double[]`	`toDoubleList()`
`IValue[]`	`toList()`
`long`	`toLong()`
`long[]`	`toLongList()`
`String`	`toStr()`
`Tensor`	`toTensor()`
`Tensor[]`	`toTensorList()`
`IValue[]`	`toTuple()`
`static IValue`	`tupleFrom(IValue... array)`	Creates a new `IValue` of type `Tuple[T0, T1, ...]`.

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

Method Detail

isNull
```
public boolean isNull()
```

isTensor
```
public boolean isTensor()
```

isBool
```
public boolean isBool()
```

isLong
```
public boolean isLong()
```

isDouble
```
public boolean isDouble()
```

isString
```
public boolean isString()
```

isTuple
```
public boolean isTuple()
```

isBoolList
```
public boolean isBoolList()
```

isLongList
```
public boolean isLongList()
```

isDoubleList
```
public boolean isDoubleList()
```

isTensorList
```
public boolean isTensorList()
```

isList
```
public boolean isList()
```

isDictStringKey
```
public boolean isDictStringKey()
```

isDictLongKey
```
public boolean isDictLongKey()
```

optionalNull
```
public static IValue optionalNull()
```
Creates a new IValue of type Optional that contains no value.

from

public static IValue from(Tensor tensor)

Creates a new IValue of type Tensor.

from

public static IValue from(boolean value)

Creates a new IValue of type bool.

from

public static IValue from(long value)

Creates a new IValue of type int.

from

public static IValue from(double value)

Creates a new IValue of type float.

from

public static IValue from(String value)

Creates a new IValue of type str.

listFrom

public static IValue listFrom(boolean... list)

Creates a new IValue of type List[bool].

listFrom

public static IValue listFrom(long... list)

Creates a new IValue of type List[int].

listFrom

public static IValue listFrom(double... list)

Creates a new IValue of type List[float].

listFrom

public static IValue listFrom(Tensor... list)

Creates a new IValue of type List[Tensor].

listFrom
```
public static IValue listFrom(IValue... array)
```
Creates a new IValue of type List[T]. All elements must have the same type.

tupleFrom

public static IValue tupleFrom(IValue... array)

Creates a new IValue of type Tuple[T0, T1, ...].

dictStringKeyFrom

public static IValue dictStringKeyFrom(Map<String,IValue> map)

Creates a new IValue of type Dict[str, V].

dictLongKeyFrom

public static IValue dictLongKeyFrom(Map<Long,IValue> map)

Creates a new IValue of type Dict[int, V].

toTensor
```
public Tensor toTensor()
```

toBool
```
public boolean toBool()
```

toLong
```
public long toLong()
```

toDouble
```
public double toDouble()
```

toStr
```
public String toStr()
```

toBoolList
```
public boolean[] toBoolList()
```

toLongList
```
public long[] toLongList()
```

toDoubleList
```
public double[] toDoubleList()
```

toTensorList
```
public Tensor[] toTensorList()
```

toList
```
public IValue[] toList()
```

toTuple
```
public IValue[] toTuple()
```

toDictStringKey

public Map<String,IValue> toDictStringKey()

toDictLongKey

public Map<Long,IValue> toDictLongKey()

Class IValue

Method Summary

Methods inherited from class java.lang.Object

Method Detail

isNull

isTensor

isBool

isLong

isDouble

isString

isTuple

isBoolList

isLongList

isDoubleList

isTensorList

isList

isDictStringKey

isDictLongKey

optionalNull

from

from

from

from

from

listFrom

listFrom

listFrom

listFrom

listFrom

tupleFrom

dictStringKeyFrom

dictLongKeyFrom

toTensor

toBool

toLong

toDouble

toStr

toBoolList

toLongList

toDoubleList

toTensorList

toList

toTuple

toDictStringKey

toDictLongKey