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Added isNull() and isNotNull() to ExtendedSubQuery

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This commit is contained in:
Robert Bain 2015-09-20 14:39:30 +01:00
parent 5789cae7d9
commit 3e74841d05
2 changed files with 26 additions and 0 deletions
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15
querydsl-core/src/main/java/com/querydsl/core/support/ExtendedSubQuery.java
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@ -16,6 +16,7 @@ package com.querydsl.core.support;
import com.querydsl.core.types.Expression;
import com.querydsl.core.types.SubQueryExpression;
import com.querydsl.core.types.dsl.BooleanExpression;
import com.querydsl.core.types.dsl.BooleanOperation;
/**
* {@code ExtendedSubQuery} extends the {@link SubQueryExpression} interface to provide fluent
@ -151,4 +152,18 @@ public interface ExtendedSubQuery<T> extends SubQueryExpression<T> {
*/
BooleanExpression goe(T constant);
/**
* Create a {@code this is null} expression
*
* @return this is null
*/
BooleanOperation isNull();
/**
* Create a {@code this is not null} expression
*
* @return this is not null
*/
BooleanOperation isNotNull();
}

11
querydsl-core/src/main/java/com/querydsl/core/support/FetchableSubQueryBase.java
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@ -16,6 +16,7 @@ package com.querydsl.core.support;
import com.querydsl.core.QueryMetadata;
import com.querydsl.core.types.*;
import com.querydsl.core.types.dsl.BooleanExpression;
import com.querydsl.core.types.dsl.BooleanOperation;
import com.querydsl.core.types.dsl.Expressions;
/**
@ -121,6 +122,16 @@ public abstract class FetchableSubQueryBase<T, Q extends FetchableSubQueryBase<T
return goe(Expressions.constant(constant));
}
@Override
public BooleanOperation isNull() {
return Expressions.booleanOperation(Ops.IS_NULL, mixin);
}
@Override
public BooleanOperation isNotNull() {
return Expressions.booleanOperation(Ops.IS_NOT_NULL, mixin);
}
@Override
public final int hashCode() {
return mixin.hashCode();