IndexedChangeQuery (Gerrit Review Plugin API Documentation)

java.lang.Object
- com.google.gerrit.server.query.Predicate<ChangeData>
- - com.google.gerrit.server.index.IndexedChangeQuery

All Implemented Interfaces:

ChangeDataSource, Paginated, DataSource<ChangeData>
```
public class IndexedChangeQuery
extends Predicate<ChangeData>
implements ChangeDataSource, Paginated
```
Wrapper combining an IndexPredicate together with a ChangeDataSource that returns matching results from the index.
Appropriate to return as the rootmost predicate that can be processed using the secondary index; such predicates must also implement ChangeDataSource to be chosen by the query processor.

Constructor Summary

Constructors
Constructor and Description

IndexedChangeQuery(ChangeIndex index, Predicate<ChangeData> pred, int limit)

Constructors
Constructor and Description
`IndexedChangeQuery(ChangeIndex index, Predicate<ChangeData> pred, int limit)`

Method Summary

Methods
Modifier and Type	Method and Description
`Predicate<ChangeData>`	`copy(Collection<? extends Predicate<ChangeData>> children)` Create a copy of this predicate, with new children.
`boolean`	`equals(Object other)`
`int`	`getCardinality()`
`Predicate<ChangeData>`	`getChild(int i)` Same as `getChildren().get(i)`
`int`	`getChildCount()` Same as `getChildren().size()`
`List<Predicate<ChangeData>>`	`getChildren()` Get the children of this predicate, if any.
`int`	`getCost()`
`boolean`	`hasChange()`
`int`	`hashCode()`
`int`	`limit()`
`boolean`	`match(ChangeData cd)` Does this predicate match this object?
`com.google.gwtorm.server.ResultSet<ChangeData>`	`read()`
`com.google.gwtorm.server.ResultSet<ChangeData>`	`restart(int start)`
`String`	`toString()`

Methods inherited from class com.google.gerrit.server.query.Predicate
and, and, any, not, or, or

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

- Constructor Detail
  - IndexedChangeQuery
```
public IndexedChangeQuery(ChangeIndex index,
                  Predicate<ChangeData> pred,
                  int limit)
                   throws com.google.gerrit.server.query.QueryParseException
```
    Throws:
    
    com.google.gerrit.server.query.QueryParseException
- Method Detail
  - getChildCount
```
public int getChildCount()
```
    Description copied from class: Predicate
    
    Same as getChildren().size()
    
    Overrides:
    
    getChildCount in class Predicate<ChangeData>
  - getChild
```
public Predicate<ChangeData> getChild(int i)
```
    Description copied from class: Predicate
    
    Same as getChildren().get(i)
    
    Overrides:
    
    getChild in class Predicate<ChangeData>
  - getChildren
```
public List<Predicate<ChangeData>> getChildren()
```
    Description copied from class: Predicate
    
    Get the children of this predicate, if any.
    
    Overrides:
    
    getChildren in class Predicate<ChangeData>
  - limit
```
public int limit()
```
    Specified by:
    
    limit in interface Paginated
  - getCardinality
```
public int getCardinality()
```
    Specified by:
    
    getCardinality in interface DataSource<ChangeData>
    
    Returns:
    an estimate of the number of results from DataSource.read().
  - hasChange
```
public boolean hasChange()
```
    Specified by:
    
    hasChange in interface ChangeDataSource
    
    Returns:
    true if all returned ChangeData.hasChange() will be true.
  - read
```
public com.google.gwtorm.server.ResultSet<ChangeData> read()
                                                    throws com.google.gwtorm.server.OrmException
```
    Specified by:
    
    read in interface DataSource<ChangeData>
    
    Returns:
    read from the database and return the results.
    
    Throws:
    
    com.google.gwtorm.server.OrmException
  - restart
```
public com.google.gwtorm.server.ResultSet<ChangeData> restart(int start)
                                                       throws com.google.gwtorm.server.OrmException
```
    Specified by:
    
    restart in interface Paginated
    
    Throws:
    
    com.google.gwtorm.server.OrmException
  - copy
```
public Predicate<ChangeData> copy(Collection<? extends Predicate<ChangeData>> children)
```
    Description copied from class: Predicate
    
    Create a copy of this predicate, with new children.
    
    Specified by:
    
    copy in class Predicate<ChangeData>
  - match
```
public boolean match(ChangeData cd)
              throws com.google.gwtorm.server.OrmException
```
    Description copied from class: Predicate
    
    Does this predicate match this object?
    
    Specified by:
    
    match in class Predicate<ChangeData>
    
    Throws:
    
    com.google.gwtorm.server.OrmException
  - getCost
```
public int getCost()
```
    Specified by:
    
    getCost in class Predicate<ChangeData>
    
    Returns:
    a cost estimate to run this predicate, higher figures cost more.
  - hashCode
```
public int hashCode()
```
    Specified by:
    
    hashCode in class Predicate<ChangeData>
  - equals
```
public boolean equals(Object other)
```
    Specified by:
    
    equals in class Predicate<ChangeData>
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class IndexedChangeQuery

Constructor Summary

Method Summary

Methods inherited from class com.google.gerrit.server.query.Predicate

Methods inherited from class java.lang.Object

Constructor Detail

IndexedChangeQuery

Method Detail

getChildCount

getChild

getChildren

limit

getCardinality

hasChange

read

restart

copy

match

getCost

hashCode

equals

toString