liqp

Class LValue

java.lang.Object

liqp.LValue

Direct Known Subclasses:

Filter, Tag

public abstract class LValue
extends Object

An abstract class the Filter and Tag classes extend.

It houses some utility methods easily available for said classes.

Constructor Summary

Constructors

Constructor and Description
LValue()

Method Summary

Modifier and Type	Method and Description
static boolean	areEqual(Object a, Object b) Returns true iff a and b are equals, where (int) 1 is equals to (double) 1.0
Object[]	asArray(Object value) Returns this value as an array.
boolean	asBoolean(Object value) Convert `value` to a boolean.
Number	asNumber(Object value) Returns `value` as a Number.
String	asString(Object value) Returns `value` as a String.
boolean	isArray(Object value) Returns true iff `value` is an array or a java.util.List.
boolean	isInteger(Object value) Returns true iff `value` is a whole number (Integer or Long).
boolean	isNumber(Object value) Returns true iff `value` is a Number.
boolean	isString(Object value) Returns true iff `value` is a String.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LValue

public LValue()

Method Detail

areEqual

public static boolean areEqual(Object a,
                               Object b)

Returns true iff a and b are equals, where (int) 1 is equals to (double) 1.0

Parameters:

a - the first object to compare.

b - the second object to compare.

Returns:

true iff a and b are equals, where (int) 1 is equals to (double) 1.0

asArray

public Object[] asArray(Object value)

Returns this value as an array. If a value is already an array, it is casted to a `Object[]`, if it's a `java.util.List`, it is converted to an array and in all other cases, `value` is simply returned as an `Object[]` with a single value in it.

Parameters:

value - the value to convert/cast to an array.

Returns:

this value as an array.

asBoolean

public boolean asBoolean(Object value)

Convert `value` to a boolean. Note that only `nil` and `false` are `false`, all other values are `true`.

Parameters:

value - the value to convert.

Returns:

`value` as a boolean.

asNumber

public Number asNumber(Object value)
                throws NumberFormatException

Returns `value` as a Number. Strings will be coerced into either a Long or Double.

Parameters:

value - the value to cast to a Number.

Returns:

`value` as a Number.

Throws:

NumberFormatException - when `value` is a String which could not be parsed as a Long or Double.

asString

public String asString(Object value)

Returns `value` as a String.

Parameters:

value - the value to convert to a String.

Returns:

`value` as a String.

isArray

public boolean isArray(Object value)

Returns true iff `value` is an array or a java.util.List.

Parameters:

value - the value to check.

Returns:

true iff `value` is an array or a java.util.List.

isInteger

public boolean isInteger(Object value)

Returns true iff `value` is a whole number (Integer or Long).

Parameters:

value - the value to check.

Returns:

true iff `value` is a whole number (Integer or Long).

isNumber

public boolean isNumber(Object value)

Returns true iff `value` is a Number.

Parameters:

value - the value to check.

Returns:

true iff `value` is a Number.

isString

public boolean isString(Object value)

Returns true iff `value` is a String.

Parameters:

value - the value to check.

Returns:

true iff `value` is a String.