com.hazelcast.query

Class SqlPredicate

java.lang.Object

com.hazelcast.query.SqlPredicate

All Implemented Interfaces:

DataSerializable, IdentifiedDataSerializable, IndexAwarePredicate, Predicate, VisitablePredicate, Serializable

public class SqlPredicate
extends Object
implements IndexAwarePredicate, VisitablePredicate, IdentifiedDataSerializable

This class contains methods related to conversion of sql query to predicate.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SqlPredicate()
SqlPredicate(String sql)

Method Summary

Modifier and Type	Method and Description
Predicate	accept(Visitor visitor, Indexes indexes) Accept visitor.
boolean	apply(Map.Entry mapEntry)
boolean	equals(Object o)
Set<QueryableEntry>	filter(QueryContext queryContext)
int	getFactoryId() Returns DataSerializableFactory factory id for this class.
int	getId() Returns type identifier for this class.
Predicate	getPredicate()
int	hashCode()
boolean	isIndexed(QueryContext queryContext)
void	readData(ObjectDataInput in) Reads fields from the input stream
String	toString()
void	writeData(ObjectDataOutput out) Writes object fields to output stream

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

SqlPredicate

public SqlPredicate(String sql)

SqlPredicate

public SqlPredicate()

Method Detail

apply

public boolean apply(Map.Entry mapEntry)

Specified by:

apply in interface Predicate

isIndexed

public boolean isIndexed(QueryContext queryContext)

Specified by:

isIndexed in interface IndexAwarePredicate

filter

public Set<QueryableEntry> filter(QueryContext queryContext)

Specified by:

filter in interface IndexAwarePredicate

writeData

public void writeData(ObjectDataOutput out)
               throws IOException

Description copied from interface: DataSerializable

Writes object fields to output stream

Specified by:

writeData in interface DataSerializable

Parameters:

out - output

Throws:

IOException

readData

public void readData(ObjectDataInput in)
              throws IOException

Description copied from interface: DataSerializable

Reads fields from the input stream

Specified by:

readData in interface DataSerializable

Parameters:

in - input

Throws:

IOException

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

accept

public Predicate accept(Visitor visitor,
                        Indexes indexes)

Description copied from interface: VisitablePredicate

Accept visitor. Predicate can either return it's own instance if no modification was done as a result of the visit. In the case there is a change needed then the predicate has to return changed copy of itself. Predicates has to be treated as immutable for optimization purposes.

Specified by:

accept in interface VisitablePredicate

Parameters:

visitor - visitor to accept

indexes - indexes

Returns:

itself or its changed copy

getPredicate

public Predicate getPredicate()

getFactoryId

public int getFactoryId()

Description copied from interface: IdentifiedDataSerializable

Returns DataSerializableFactory factory id for this class.

Specified by:

getFactoryId in interface IdentifiedDataSerializable

Returns:

factory id

getId

public int getId()

Description copied from interface: IdentifiedDataSerializable

Returns type identifier for this class. Id should be unique per DataSerializableFactory.

Specified by:

getId in interface IdentifiedDataSerializable

Returns:

type id