All Known Subinterfaces:

JsArray, JsNumber, JsObj, Json<T>

All Known Implementing Classes:

JsBigDec, JsBigInt, JsBool, JsDouble, JsInt, JsLong, JsNothing, JsNull, JsStr
```
public interface JsElem
```
Represents a json element of any type. Every json type implements this interface. This interface implements two kind of methods:
- Classificatory methods, which starts with the prefix isXXX
- Accessory methods to convert the JsElem to the real implementation, which starts with the prefix asJsXXX

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`default JsArray`	`asJsArray()`
`default JsBigDec`	`asJsBigDec()`
`default JsBigInt`	`asJsBigInt()`
`default JsBool`	`asJsBool()`
`default JsDouble`	`asJsDouble()`
`default JsInt`	`asJsInt()`
`default JsLong`	`asJsLong()`
`default JsObj`	`asJsObj()`
`default Json<?>`	`asJson()`
`default JsStr`	`asJsStr()`
`boolean`	`isArray()`
`default boolean`	`isArray(Predicate<JsArray> predicate)`	Returns true if this elem is a JsArray and satisfies the given predicate
`boolean`	`isBigDec()`
`default boolean`	`isBigDec(Predicate<BigDecimal> predicate)`	Returns true if this elem is a JsBigDec and satisfies the given predicate
`boolean`	`isBigInt()`
`default boolean`	`isBigInt(Predicate<BigInteger> predicate)`	Returns true if this elem is a JsBigInt and satisfies the given predicate
`boolean`	`isBool()`
`default boolean`	`isDecimal()`
`boolean`	`isDouble()`
`default boolean`	`isDouble(DoublePredicate predicate)`	Returns true if this elem is a JsDouble and satisfies the given predicate
`boolean`	`isFalse()`
`default boolean`	`isInstant()`
`default boolean`	`isInstant(Predicate<Instant> predicate)`	Returns true if this elem is a JsStr that contains an Instant and satisfies the given predicate
`boolean`	`isInt()`
`default boolean`	`isInt(IntPredicate predicate)`	Returns true if this elem is a JsInt and satisfies the given predicate
`default boolean`	`isIntegral()`
`default boolean`	`isJson()`
`default boolean`	`isJson(Predicate<Json<?>> predicate)`	Returns true if this elem is a Json and satisfies the given predicate
`default boolean`	`isLocalDate(DateTimeFormatter formatter)`	return true if this JsElem is a JsStr that contains a local date that can be parsed with the given formatter
`default boolean`	`isLocalDate(DateTimeFormatter formatter, Predicate<LocalDate> predicate)`	return true if this JsElem is a JsStr that contains a local date that can be parsed with the given formatter and satisfies the given predicate
`default boolean`	`isLocalDateTime(DateTimeFormatter formatter)`	return true if this JsElem is a JsStr that contains a local date-time that can be parsed with the given formatter
`default boolean`	`isLocalDateTime(DateTimeFormatter formatter, Predicate<LocalDateTime> predicate)`	return true if this JsElem is a JsStr that contains a local date-time that can be parsed with the given formatter and satisfies the given predicate
`boolean`	`isLong()`
`default boolean`	`isLong(LongPredicate predicate)`	Returns true if this elem is a JsLong and satisfies the given predicate
`boolean`	`isNothing()`
`default boolean`	`isNotJson()`
`default boolean`	`isNotNothing()`
`default boolean`	`isNotNull()`
`default boolean`	`isNotNumber()`
`boolean`	`isNull()`
`default boolean`	`isNumber()`
`boolean`	`isObj()`
`default boolean`	`isObj(Predicate<JsObj> predicate)`	Returns true if this elem is a JsObj and satisfies the given predicate
`default boolean`	`isSameType(JsElem that)`	returns true if this elem and the given have the same type
`boolean`	`isStr()`
`default boolean`	`isStr(Predicate<String> predicate)`	Returns true if this elem is a JsStr and satisfies the given predicate
`boolean`	`isTrue()`

- Method Detail
  - asJsBool
```
default JsBool asJsBool()
```
    Returns:
    
    this JsElem as a JsBool
    
    Throws:
    
    UserError - if this JsElem is not a JsBool
  - isBool
```
boolean isBool()
```
    Returns:
    
    true if this JsElem is a JsBool
  - isSameType
```
default boolean isSameType(JsElem that)
```
    returns true if this elem and the given have the same type
    
    Parameters:
    
    that - the given elem
    
    Returns:
    
    true if this JsElem and the given have the same type
  - isTrue
```
boolean isTrue()
```
    Returns:
    
    true if this JsElem is a JsBool and it's true
  - isFalse
```
boolean isFalse()
```
    Returns:
    
    true if this JsElem is a JsBool and it's false
  - asJsInt
```
default JsInt asJsInt()
```
    Returns:
    
    this JsElem as a JsInt
    
    Throws:
    
    UserError - if this JsElem is not a JsInt
  - isInt
```
boolean isInt()
```
    Returns:
    
    true if this JsElem is a JsInt
  - isInt
```
default boolean isInt(IntPredicate predicate)
```
    Returns true if this elem is a JsInt and satisfies the given predicate
    
    Parameters:
    
    predicate - the given predicate
    
    Returns:
    
    true if this JsElem is a JsInt and satisfies the predicate
  - asJsDouble
```
default JsDouble asJsDouble()
```
    Returns:
    
    this JsElem as a JsDouble
    
    Throws:
    
    UserError - if this JsElem is not a JsDouble
  - isDouble
```
boolean isDouble()
```
    Returns:
    
    true if this JsElem is a JsDouble
  - isDouble
```
default boolean isDouble(DoublePredicate predicate)
```
    Returns true if this elem is a JsDouble and satisfies the given predicate
    
    Parameters:
    
    predicate - the given predicate
    
    Returns:
    
    true if this JsElem is a JsDouble and satisfies the predicate
  - asJsBigDec
```
default JsBigDec asJsBigDec()
```
    Returns:
    
    this JsElem as a JsBigDec
    
    Throws:
    
    UserError - if this JsElem is not a JsBigDec or a JsDouble
  - isBigDec
```
boolean isBigDec()
```
    Returns:
    
    true if this JsElem is a JsBigDec
  - isBigDec
```
default boolean isBigDec(Predicate<BigDecimal> predicate)
```
    Returns true if this elem is a JsBigDec and satisfies the given predicate
    
    Parameters:
    
    predicate - the given predicate
    
    Returns:
    
    true if this JsElem is a JsBigDec and satisfies the predicate
  - asJsLong
```
default JsLong asJsLong()
```
    Returns:
    
    this JsElem as a JsLong
    
    Throws:
    
    UserError - if this JsElem is not a JsLong or a JsInt
  - isLong
```
boolean isLong()
```
    Returns:
    
    true if this JsElem is a JsLong
  - isLong
```
default boolean isLong(LongPredicate predicate)
```
    Returns true if this elem is a JsLong and satisfies the given predicate
    
    Parameters:
    
    predicate - the given predicate
    
    Returns:
    
    true if this JsElem is a JsLong and satisfies the predicate
  - asJson
```
default Json<?> asJson()
```
    Returns:
    
    this JsElem as a Json
    
    Throws:
    
    UserError - if this JsElem is not a JsObj or a JsArray
  - isJson
```
default boolean isJson()
```
    Returns:
    
    true if this JsElem is a Json (JsObj or JsArray)
  - isNotJson
```
default boolean isNotJson()
```
    Returns:
    
    true if this JsElem is a not a Json (neither JsObj nor JsArray)
  - isJson
```
default boolean isJson(Predicate<Json<?>> predicate)
```
    Returns true if this elem is a Json and satisfies the given predicate
    
    Parameters:
    
    predicate - the given predicate
    
    Returns:
    
    true if this JsElem is a Json and satisfies the predicate
  - asJsObj
```
default JsObj asJsObj()
```
    Returns:
    
    this JsElem as a JsObj
    
    Throws:
    
    UserError - if this JsElem is not a JsObj
  - isObj
```
boolean isObj()
```
    Returns:
    
    true if this JsElem is a JsObj
  - isObj
```
default boolean isObj(Predicate<JsObj> predicate)
```
    Returns true if this elem is a JsObj and satisfies the given predicate
    
    Parameters:
    
    predicate - the given predicate
    
    Returns:
    
    true if this JsElem is a JsObj and satisfies the predicate
  - asJsArray
```
default JsArray asJsArray()
```
    Returns:
    
    this JsElem as a JsArray
    
    Throws:
    
    UserError - if this JsElem is not a JsArray
  - isArray
```
boolean isArray()
```
    Returns:
    
    true if this JsElem is a JsArray
  - isArray
```
default boolean isArray(Predicate<JsArray> predicate)
```
    Returns true if this elem is a JsArray and satisfies the given predicate
    
    Parameters:
    
    predicate - the given predicate
    
    Returns:
    
    true if this JsElem is a JsArray and satisfies the predicate
  - asJsStr
```
default JsStr asJsStr()
```
    Returns:
    
    this JsElem as a JsStr
    
    Throws:
    
    UserError - if this JsElem is not a JsStr
  - isStr
```
boolean isStr()
```
    Returns:
    
    true if this JsElem is a JsStr
  - isStr
```
default boolean isStr(Predicate<String> predicate)
```
    Returns true if this elem is a JsStr and satisfies the given predicate
    
    Parameters:
    
    predicate - the given predicate
    
    Returns:
    
    true if this JsElem is a JsStr and satisfies the predicate
  - asJsBigInt
```
default JsBigInt asJsBigInt()
```
    Returns:
    
    this JsElem as a JsBigInt
    
    Throws:
    
    UserError - if this JsElem is not a JsBigInt or JsLong or JsInt
  - isBigInt
```
boolean isBigInt()
```
    Returns:
    
    true if this JsElem is a JsBigInt
  - isBigInt
```
default boolean isBigInt(Predicate<BigInteger> predicate)
```
    Returns true if this elem is a JsBigInt and satisfies the given predicate
    
    Parameters:
    
    predicate - the given predicate
    
    Returns:
    
    true if this JsElem is a JsBigInt and satisfies the predicate
  - isInstant
```
default boolean isInstant()
```
    Returns:
    
    true if this JsElem is a JsStr that contains an instant in the format DateTimeFormatter.ISO_INSTANT
  - isInstant
```
default boolean isInstant(Predicate<Instant> predicate)
```
    Returns true if this elem is a JsStr that contains an Instant and satisfies the given predicate
    
    Parameters:
    
    predicate - the given predicate
    
    Returns:
    
    true if this JsElem is a JsStr that contains an Instant and satisfies the predicate
  - isLocalDate
```
default boolean isLocalDate(DateTimeFormatter formatter)
```
    return true if this JsElem is a JsStr that contains a local date that can be parsed with the given formatter
    
    Parameters:
    
    formatter - the given formatter
    
    Returns:
    
    true if this JsElem is a JsStr that contains a local date that can be parsed with the given formatter
  - isLocalDate
```
default boolean isLocalDate(DateTimeFormatter formatter,
                            Predicate<LocalDate> predicate)
```
    return true if this JsElem is a JsStr that contains a local date that can be parsed with the given formatter and satisfies the given predicate
    
    Parameters:
    
    formatter - the given formatter
    
    predicate - the given predicate
    
    Returns:
    
    true if this JsElem is a JsStr that contains a local date that can be parsed with the formatter and satisfies the predicate
  - isLocalDateTime
```
default boolean isLocalDateTime(DateTimeFormatter formatter)
```
    return true if this JsElem is a JsStr that contains a local date-time that can be parsed with the given formatter
    
    Parameters:
    
    formatter - the given formatter
    
    Returns:
    
    true if this JsElem is a JsStr that contains a local date-time that can be parsed with the given formatter
  - isLocalDateTime
```
default boolean isLocalDateTime(DateTimeFormatter formatter,
                                Predicate<LocalDateTime> predicate)
```
    return true if this JsElem is a JsStr that contains a local date-time that can be parsed with the given formatter and satisfies the given predicate
    
    Parameters:
    
    formatter - the given formatter
    
    predicate - the given predicate
    
    Returns:
    
    true if this JsElem is a JsStr that contains a local date-time that can be parsed with the formatter and satisfies the predicate
  - isIntegral
```
default boolean isIntegral()
```
    Returns:
    
    true if this element is an integral number (JsInt or JsLong or JsBigInt)
  - isDecimal
```
default boolean isDecimal()
```
    Returns:
    
    true if this element is an decimal number (JsDouble or JsBigDec)
  - isNull
```
boolean isNull()
```
    Returns:
    
    true if this element is null
  - isNothing
```
boolean isNothing()
```
    Returns:
    
    true if this element is JsNothing
  - isNotNull
```
default boolean isNotNull()
```
    Returns:
    
    true if this element is not null
  - isNotNothing
```
default boolean isNotNothing()
```
    Returns:
    
    true if this element is not JsNothing
  - isNumber
```
default boolean isNumber()
```
    Returns:
    
    true if this element is a number
  - isNotNumber
```
default boolean isNotNumber()
```
    Returns:
    
    true if this element is not a number

Interface JsElem

Method Summary

Method Detail

asJsBool

isBool

isSameType

isTrue

isFalse

asJsInt

isInt

isInt

asJsDouble

isDouble

isDouble

asJsBigDec

isBigDec

isBigDec

asJsLong

isLong

isLong

asJson

isJson

isNotJson

isJson

asJsObj

isObj

isObj

asJsArray

isArray

isArray

asJsStr

isStr

isStr

asJsBigInt

isBigInt

isBigInt

isInstant

isInstant

isLocalDate

isLocalDate

isLocalDateTime

isLocalDateTime

isIntegral

isDecimal

isNull

isNothing

isNotNull

isNotNothing

isNumber

isNotNumber