info.sswap.http.representation
Interface Value

All Known Implementing Classes:

ArrayValue, Entity, LiteralValue, ValueBase

public interface Value

Represents a value (e.g., of a property) in the intermediate representation.

Author:

Blazej Bulka

Method Summary

Value[]	asArray() Gets the representation of this value as an array of values.
boolean	asBoolean() Gets the boolean representation of this value
double	asDouble() Returns the representation of this value as a double
Entity	asEntity() Returns the value as an entity
int	asInteger() Returns the representation of this value as an integer
LiteralValue	asLiteral() Returns this value as a literal.
java.lang.String	asString() Returns the representation of this value as string (without the quotes).
boolean	isArray() Checks whether this value is an array of values.
boolean	isBoolean() Checks whether this value can be as a boolean (i.e., contains "true" or "false", case insensitive)
boolean	isDouble() Checks whether this value can be represented as a double
boolean	isEntity() Checks whether this value is an entity.
boolean	isInteger() Checks whether this value is a valid integer.
boolean	isLiteral() Checks whether this value is a literal (i.e., not an array or entity)

Method Detail

asString

java.lang.String asString()

Returns the representation of this value as string (without the quotes).

Returns:

the string representation of this value

isLiteral

boolean isLiteral()

Checks whether this value is a literal (i.e., not an array or entity)

Returns:

true if this value is a literal

asLiteral

LiteralValue asLiteral()
                       throws java.lang.IllegalArgumentException

Returns this value as a literal.

Returns:

this value typed as LiteralValue

Throws:

java.lang.IllegalArgumentException - if this value is not a literal (isLiteral() should return false in such a case)

isInteger

boolean isInteger()

Checks whether this value is a valid integer.

Returns:

true, if this is a valid integer, false otherwise

asInteger

int asInteger()
              throws java.lang.IllegalArgumentException

Returns the representation of this value as an integer

Returns:

the representation of this value as an integer

Throws:

java.lang.IllegalArgumentException - if this value cannot be represented as an integer (isInteger() should return false in such a case)

isDouble

boolean isDouble()

Checks whether this value can be represented as a double

Returns:

true if this is a valid double, false otherwise

asDouble

double asDouble()
                throws java.lang.IllegalArgumentException

Returns the representation of this value as a double

Returns:

the representation of this value as a double

Throws:

java.lang.IllegalArgumentException - if this value cannot be represented as a double (isDouble() should return false in such a case)

isBoolean

boolean isBoolean()

Checks whether this value can be as a boolean (i.e., contains "true" or "false", case insensitive)

Returns:

true if this value can be a boolean, false otherwise

asBoolean

boolean asBoolean()
                  throws java.lang.IllegalArgumentException

Gets the boolean representation of this value

Returns:

true if the value contains "true" (case insensitive), false otherwise

Throws:

java.lang.IllegalArgumentException - if this value cannot be represented as a boolean (isBoolean should return false in such a case)

isArray

boolean isArray()

Checks whether this value is an array of values.

Returns:

true if the value is an array

asArray

Value[] asArray()
                throws java.lang.IllegalArgumentException

Gets the representation of this value as an array of values.

Returns:

the representation of this value as an array

Throws:

java.lang.IllegalArgumentException - if this value cannot be represented as an array (isArray() should return false in such a case).

isEntity

boolean isEntity()

Checks whether this value is an entity.

Returns:

true if this value is an entity

asEntity

Entity asEntity()
                throws java.lang.IllegalArgumentException

Returns the value as an entity

Returns:

the representation of this value as an entity

Throws:

java.lang.IllegalArgumentException - if this value cannot be represented as an entity