LabelExpression (Hydra Java API)

java.lang.Object
- openGql.grammar.LabelExpression

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<LabelExpression>

Direct Known Subclasses:

LabelExpression.Conjunction, LabelExpression.Disjunction, LabelExpression.Name, LabelExpression.Negation, LabelExpression.Parenthesized, LabelExpression.Wildcard
```
public abstract class LabelExpression
extends java.lang.Object
implements java.io.Serializable, java.lang.Comparable<LabelExpression>
```
See Also:

Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`LabelExpression.Conjunction`
`static class`	`LabelExpression.Disjunction`
`static class`	`LabelExpression.Name`
`static class`	`LabelExpression.Negation`
`static class`	`LabelExpression.Parenthesized`
`static interface`	`LabelExpression.PartialVisitor<R>`	Partial visitor over `LabelExpression` with a default `LabelExpression.PartialVisitor.otherwise(openGql.grammar.LabelExpression)` branch.
`static interface`	`LabelExpression.Visitor<R>`	Visitor over `LabelExpression`.
`static class`	`LabelExpression.Wildcard`

Field Summary

Fields
Modifier and Type	Field	Description
`static Name`	`CONJUNCTION`	Name of the `openGql.grammar.LabelExpression.conjunction` field.
`static Name`	`DISJUNCTION`	Name of the `openGql.grammar.LabelExpression.disjunction` field.
`static Name`	`NAME`	Name of the `openGql.grammar.LabelExpression.name` field.
`static Name`	`NEGATION`	Name of the `openGql.grammar.LabelExpression.negation` field.
`static Name`	`PARENTHESIZED`	Name of the `openGql.grammar.LabelExpression.parenthesized` field.
`static Name`	`TYPE_`	Name of the `openGql.grammar.LabelExpression` type.
`static Name`	`WILDCARD`	Name of the `openGql.grammar.LabelExpression.wildcard` field.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type Method Description

abstract <R> R accept(LabelExpression.Visitor<R> visitor)
Dispatch to visitor.
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
- Methods inherited from interface java.lang.Comparable
  compareTo

- Field Detail
  - TYPE_
```
public static final Name TYPE_
```
    Name of the openGql.grammar.LabelExpression type.
  - NEGATION
```
public static final Name NEGATION
```
    Name of the openGql.grammar.LabelExpression.negation field.
  - CONJUNCTION
```
public static final Name CONJUNCTION
```
    Name of the openGql.grammar.LabelExpression.conjunction field.
  - DISJUNCTION
```
public static final Name DISJUNCTION
```
    Name of the openGql.grammar.LabelExpression.disjunction field.
  - NAME
```
public static final Name NAME
```
    Name of the openGql.grammar.LabelExpression.name field.
  - WILDCARD
```
public static final Name WILDCARD
```
    Name of the openGql.grammar.LabelExpression.wildcard field.
  - PARENTHESIZED
```
public static final Name PARENTHESIZED
```
    Name of the openGql.grammar.LabelExpression.parenthesized field.
- Method Detail
  - accept
```
public abstract <R> R accept(LabelExpression.Visitor<R> visitor)
```
    Dispatch to visitor.