Enum UnaryOperator
- java.lang.Object
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- java.lang.Enum<UnaryOperator>
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- org.apache.sling.scripting.sightly.compiler.expression.nodes.UnaryOperator
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- All Implemented Interfaces:
java.io.Serializable
,java.lang.Comparable<UnaryOperator>
public enum UnaryOperator extends java.lang.Enum<UnaryOperator>
Unary operators used in expressions.
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Enum Constant Summary
Enum Constants Enum Constant Description IS_WHITESPACE
Evaluates whether the operand is a string of only whitespace charactersLENGTH
Evaluates the length of a collectionNOT
Evaluates to logical negation of the operand
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Method Summary
All Methods Static Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description abstract java.lang.Object
eval(java.lang.Object operand)
static UnaryOperator
valueOf(java.lang.String name)
Returns the enum constant of this type with the specified name.static UnaryOperator[]
values()
Returns an array containing the constants of this enum type, in the order they are declared.
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Enum Constant Detail
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NOT
public static final UnaryOperator NOT
Evaluates to logical negation of the operand
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IS_WHITESPACE
public static final UnaryOperator IS_WHITESPACE
Evaluates whether the operand is a string of only whitespace characters
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LENGTH
public static final UnaryOperator LENGTH
Evaluates the length of a collection
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Method Detail
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values
public static UnaryOperator[] values()
Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:for (UnaryOperator c : UnaryOperator.values()) System.out.println(c);
- Returns:
- an array containing the constants of this enum type, in the order they are declared
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valueOf
public static UnaryOperator valueOf(java.lang.String name)
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)- Parameters:
name
- the name of the enum constant to be returned.- Returns:
- the enum constant with the specified name
- Throws:
java.lang.IllegalArgumentException
- if this enum type has no constant with the specified namejava.lang.NullPointerException
- if the argument is null
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eval
public abstract java.lang.Object eval(java.lang.Object operand)
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