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made BooleanBuilder implement Operation

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This commit is contained in:
Timo Westkämper 2010-05-17 19:47:58 +00:00
parent 23dc585bee
commit e222fa8747
1 changed files with 29 additions and 6 deletions
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35
querydsl-core/src/main/java/com/mysema/query/BooleanBuilder.java
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@ -5,8 +5,15 @@
*/
package com.mysema.query;
import java.util.Collections;
import java.util.List;
import javax.annotation.Nullable;
import com.mysema.query.types.Expr;
import com.mysema.query.types.Operation;
import com.mysema.query.types.Operator;
import com.mysema.query.types.PathType;
import com.mysema.query.types.Visitor;
import com.mysema.query.types.expr.EBoolean;
@ -15,14 +22,14 @@ import com.mysema.query.types.expr.EBoolean;
*
* @author tiwe
*/
public final class BooleanBuilder extends EBoolean implements Cloneable{
public final class BooleanBuilder extends EBoolean implements Cloneable, Operation<Boolean>{
private static final long serialVersionUID = -4129485177345542519L;
@Nullable
private EBoolean expr;
public BooleanBuilder() {}
public BooleanBuilder() { }
public BooleanBuilder(EBoolean initial){
expr = initial;
@ -83,11 +90,27 @@ public final class BooleanBuilder extends EBoolean implements Cloneable{
}
}
@Override
public Expr<?> getArg(int index) {
return expr;
}
@Override
public List<Expr<?>> getArgs() {
return Collections.<Expr<?>>singletonList(expr);
}
@SuppressWarnings("unchecked")
@Override
public Operator<? super Boolean> getOperator() {
return (Operator)PathType.DELEGATE;
}
@Nullable
public EBoolean getValue(){
return expr;
}
@Override
public int hashCode(){
return expr != null ? expr.hashCode() : super.hashCode();
@ -101,7 +124,7 @@ public final class BooleanBuilder extends EBoolean implements Cloneable{
public boolean hasValue(){
return expr != null;
}
@Override
public BooleanBuilder not(){
if (expr != null){
@ -121,7 +144,7 @@ public final class BooleanBuilder extends EBoolean implements Cloneable{
}
return this;
}
/**
* Create the union of this and the intersection of the given args
* <p>(this || (arg1 && arg2 ... && argN))</p>
@ -135,7 +158,7 @@ public final class BooleanBuilder extends EBoolean implements Cloneable{
}
return this;
}
public BooleanBuilder orNot(EBoolean right){
return or(right.not());
}