Package org.hcjf.layers.query

Class Join

java.lang.Object

org.hcjf.layers.query.evaluators.EvaluatorCollection

org.hcjf.layers.query.Join

All Implemented Interfaces:

java.lang.Comparable<Join>

public class Join
extends EvaluatorCollection
implements java.lang.Comparable<Join>

This class represent a join operation

Author:

javaito

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Join.JoinType	Join types.

Field Summary

Fields inherited from class org.hcjf.layers.query.evaluators.EvaluatorCollection

evaluators

Constructor Summary

Constructors

Constructor	Description
Join(Query query, java.lang.String resourceName, Join.JoinType type)
Join(Query query, java.lang.String resourceName, Join.JoinType type, boolean outer)
Join(Query query, QueryResource resource, Join.JoinType type)
Join(Query query, QueryResource resource, Join.JoinType type, boolean outer)

Method Summary

Modifier and Type	Method	Description
int	compareTo(Join join)	Compare two instances of joins.
boolean	equals(java.lang.Object object)	Verify if this instance of join is equals that other object.
java.lang.Boolean	getOuter()	Verify if the join instance has a outer modifier.
QueryResource	getResource()	Return the resource of the join.
java.lang.String	getResourceName()	Return the resource name to join.
Join.JoinType	getType()	Return the join operation type.

Methods inherited from class org.hcjf.layers.query.evaluators.EvaluatorCollection

addBoolean, addEvaluator, and, checkEvaluator, distinct, equals, getEvaluators, getFieldEvaluators, greaterThan, greaterThanOrEquals, hasEvaluators, in, like, notIn, onAddEvaluator, or, removeEvaluator, smallerThan, smallerThanOrEqual, up

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Join

public Join(Query query,
            java.lang.String resourceName,
            Join.JoinType type)

Join

public Join(Query query,
            QueryResource resource,
            Join.JoinType type)

Join

public Join(Query query,
            java.lang.String resourceName,
            Join.JoinType type,
            boolean outer)

Join

public Join(Query query,
            QueryResource resource,
            Join.JoinType type,
            boolean outer)

Method Detail

getResource

public QueryResource getResource()

Return the resource of the join.

Returns:

Join's resource

getResourceName

public java.lang.String getResourceName()

Return the resource name to join.

Returns:

Resource name.

getType

public Join.JoinType getType()

Return the join operation type.

Returns:

Join type.

getOuter

public java.lang.Boolean getOuter()

Verify if the join instance has a outer modifier.

Returns:

True if the join has a modifier.

compareTo

public int compareTo(Join join)

Compare two instances of joins.

Specified by:

compareTo in interface java.lang.Comparable<Join>

Parameters:

join - Other join to compare.

Returns:

Return int value that represents the difference between two instances.

equals

public boolean equals(java.lang.Object object)

Verify if this instance of join is equals that other object.

Overrides:

equals in class java.lang.Object

Parameters:

object - Object to verify.

Returns:

Return true if the join is equals.