com.edorasware.commons.core.query

Class ComparisonPredicate

java.lang.Object

com.edorasware.commons.core.query.Predicate

com.edorasware.commons.core.query.QueryParameterPredicate

com.edorasware.commons.core.query.ComparisonPredicate

public final class ComparisonPredicate
extends QueryParameterPredicate

A predicate which compares a query parameter (i.e. left operand) with an expected value (i.e. right operand) based on a specific operator.

Constructor Summary

Constructors

Constructor and Description
ComparisonPredicate(ComparisonOperator operator, QueryParameter queryParameter, Object value) Constructs a new comparison predicate instance.

Method Summary

Modifier and Type	Method and Description
ComparisonPredicate	deriveWithQueryParameter(QueryParameter queryParameter) Derives a new predicate with the given query parameter from this predicate.
ComparisonOperator	getOperator() Returns the operator of this predicate.
QueryParameter	getQueryParameter() Returns the query parameter (i.e. left operand) of this predicate.
Object	getValue() Returns the value (i.e. right operand) of this predicate.
String	toString()

Methods inherited from class com.edorasware.commons.core.query.Predicate

and, apply, not, or

Methods inherited from class java.lang.Object

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

Constructor Detail

ComparisonPredicate

public ComparisonPredicate(ComparisonOperator operator,
                           QueryParameter queryParameter,
                           Object value)

Constructs a new comparison predicate instance.

Parameters:

operator - the operator to be used for the comparison

queryParameter - the left operand

value - the right operand

Method Detail

getOperator

public ComparisonOperator getOperator()

Returns the operator of this predicate.

Returns:

the operator

getQueryParameter

public QueryParameter getQueryParameter()

Returns the query parameter (i.e. left operand) of this predicate.

Specified by:

getQueryParameter in class QueryParameterPredicate

Returns:

the query parameter

getValue

public Object getValue()

Returns the value (i.e. right operand) of this predicate.

Returns:

the value

deriveWithQueryParameter

public ComparisonPredicate deriveWithQueryParameter(QueryParameter queryParameter)

Derives a new predicate with the given query parameter from this predicate.

Specified by:

deriveWithQueryParameter in class QueryParameterPredicate

Parameters:

queryParameter - the new query parameter

Returns:

the derived predicate

toString

public String toString()

Overrides:

toString in class Object