Metadata (Apache Qpid Broker-J Query Engine Plug-In 9.2.0 API)

java.lang.Object
- org.apache.qpid.server.query.engine.parsing.expression.Metadata<T>

Type Parameters:

T - Input parameter type
```
public class Metadata<T>
extends Object
```
Expression metadata

Constructor Summary

Constructors
Constructor Description

Metadata()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addAggregation(AbstractAggregationExpression<T,?> aggregation)`
`<Y> List<AbstractAggregationExpression<T,Y>>`	`getAggregations()`
`String`	`getAlias()`
`boolean`	`isAccessor()`
`boolean`	`isAggregation()`
`void`	`setAccessor(boolean accessor)`
`void`	`setAlias(String alias)`

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

Constructor Detail
- Metadata
```
public Metadata()
```

Method Detail

getAlias
```
public String getAlias()
```

setAlias

public void setAlias(String alias)

isAccessor
```
public boolean isAccessor()
```

setAccessor

public void setAccessor(boolean accessor)

isAggregation
```
public boolean isAggregation()
```

addAggregation

public void addAggregation(AbstractAggregationExpression<T,?> aggregation)

getAggregations

public <Y> List<AbstractAggregationExpression<T,Y>> getAggregations()