Package com.amazonaws.athena.connector.lambda.domain.predicate

Class Constraints

java.lang.Object

com.amazonaws.athena.connector.lambda.domain.predicate.Constraints

All Implemented Interfaces:

AutoCloseable

public class Constraints
extends Object
implements AutoCloseable

Container which holds and maps column names to the corresponding constraint (e.g. ValueSet).

Field Summary

Fields

Modifier and Type	Field	Description
static long	DEFAULT_NO_LIMIT

Constructor Summary

Constructors

Constructor	Description
Constraints(Map<String,ValueSet> summary, List<FederationExpression> expression, List<OrderByField> orderByClause, long limit, Map<String,String> queryPassthroughArguments, QueryPlan queryPlan)

Method Summary

Modifier and Type	Method	Description
void	close()
boolean	equals(Object o)
List<FederationExpression>	getExpression()
long	getLimit()
List<OrderByField>	getOrderByClause()
Map<String,String>	getQueryPassthroughArguments()
QueryPlan	getQueryPlan()
Map<String,ValueSet>	getSummary()	Provides access to the associative predicates that are part of the Constraints.
int	hashCode()
boolean	hasLimit()
boolean	hasNonEmptyOrderByClause()
boolean	isQueryPassThrough()
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_NO_LIMIT

public static final long DEFAULT_NO_LIMIT

See Also:

Constant Field Values

Constructor Detail

Constraints

public Constraints(Map<String,ValueSet> summary,
                   List<FederationExpression> expression,
                   List<OrderByField> orderByClause,
                   long limit,
                   Map<String,String> queryPassthroughArguments,
                   QueryPlan queryPlan)

Parameters:

summary -

expression -

orderByClause -

limit -

queryPassthroughArguments -

queryPlan -

Method Detail

getSummary

public Map<String,ValueSet> getSummary()

Provides access to the associative predicates that are part of the Constraints.

Returns:

A Map of column name to ValueSet representing the associative predicates on each column.

getExpression

public List<FederationExpression> getExpression()

getLimit

public long getLimit()

hasLimit

public boolean hasLimit()

getOrderByClause

public List<OrderByField> getOrderByClause()

hasNonEmptyOrderByClause

public boolean hasNonEmptyOrderByClause()

getQueryPassthroughArguments

public Map<String,String> getQueryPassthroughArguments()

getQueryPlan

public QueryPlan getQueryPlan()

isQueryPassThrough

public boolean isQueryPassThrough()

equals

public boolean equals(Object o)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

close

public void close()

Specified by:

close in interface AutoCloseable