Projection (Hydra Java API)

java.lang.Object
- hydra.pg.query.Projection

All Implemented Interfaces:: java.io.Serializable, java.lang.Comparable<Projection>

public class Projection
extends java.lang.Object
implements java.io.Serializable, java.lang.Comparable<Projection>

See Also:: Serialized Form

Field Summary

Fields
Modifier and Type	Field	Description
`Optional<Variable>`	`as`
`static Name`	`AS`	Name of the `hydra.pg.query.Projection.as` field.
`static Name`	`TYPE_`	Name of the `hydra.pg.query.Projection` type.
`Expression`	`value`
`static Name`	`VALUE`	Name of the `hydra.pg.query.Projection.value` field.

Constructor Summary

Constructors
Constructor Description

Projection(Expression value, Optional<Variable> as)
Constructs an immutable Projection.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`compareTo(Projection other)`
`boolean`	`equals(java.lang.Object other)`
`int`	`hashCode()`
`Projection`	`withAs(Optional<Variable> as)`	Returns a copy of this `Projection` with `as` replaced.
`Projection`	`withValue(Expression value)`	Returns a copy of this `Projection` with `value` replaced.

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - TYPE_
```
public static final Name TYPE_
```
    Name of the hydra.pg.query.Projection type.
  - VALUE
```
public static final Name VALUE
```
    Name of the hydra.pg.query.Projection.value field.
  - AS
```
public static final Name AS
```
    Name of the hydra.pg.query.Projection.as field.
  - value
```
public final Expression value
```
  - as
```
public final Optional<Variable> as
```
- Constructor Detail
  - Projection
```
public Projection(Expression value,
                  Optional<Variable> as)
```
    Constructs an immutable Projection.
- Method Detail
  - equals
```
public boolean equals(java.lang.Object other)
```
    Overrides:
    
    equals in class java.lang.Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class java.lang.Object
  - compareTo
```
public int compareTo(Projection other)
```
    Specified by:
    
    compareTo in interface java.lang.Comparable<Projection>
  - withValue
```
public Projection withValue(Expression value)
```
    Returns a copy of this Projection with value replaced.
  - withAs
```
public Projection withAs(Optional<Variable> as)
```
    Returns a copy of this Projection with as replaced.