com.mysema.query

Class EmptyMetadata

java.lang.Object

com.mysema.query.EmptyMetadata

All Implemented Interfaces:

QueryMetadata, Serializable

public final class EmptyMetadata
extends Object
implements QueryMetadata

EmptyMetadata provides a immutable empty QueryMetadata instace

Author:

tiwe

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static QueryMetadata	DEFAULT

Constructor Summary

Constructors

Constructor and Description
EmptyMetadata()

Method Summary

Methods

Modifier and Type	Method and Description
void	addFlag(QueryFlag flag)
void	addGroupBy(Expression<?> o) Add the given group by expressions
void	addHaving(Predicate o) Add the given having expressions
void	addJoin(JoinType joinType, Expression<?> expr) Add the given query join
void	addJoinCondition(Predicate o) Add the given join condition to the last given join
void	addJoinFlag(JoinFlag flag) Add the given join flag to the last given join
void	addOrderBy(OrderSpecifier<?> o) Add the given order specifiers
void	addProjection(Expression<?> o) Add the given projections
void	addWhere(Predicate o) Add the given where expressions
void	clearOrderBy() Clear the order expressions
void	clearProjection() Clear the projection
void	clearWhere() Clear the where expressions
QueryMetadata	clone() Clone this QueryMetadata instance
Set<QueryFlag>	getFlags()
List<Expression<?>>	getGroupBy() Get the group by expressions
Predicate	getHaving() Get the having expressions
List<JoinExpression>	getJoins() Get the query joins
QueryModifiers	getModifiers() Get the QueryModifiers
List<OrderSpecifier<?>>	getOrderBy() Get the OrderSpecifiers
Map<ParamExpression<?>,Object>	getParams() Get the parameters
List<Expression<?>>	getProjection() Get the projection
Predicate	getWhere() Get the expressions aggregated into a single boolean expression or null, if none where defined
boolean	hasFlag(QueryFlag flag)
boolean	isDistinct() Get whether the projection is distinct
boolean	isUnique() Get whether the projection is unique
void	reset() Reset the projection
void	setDistinct(boolean distinct)
void	setLimit(Long limit)
void	setModifiers(QueryModifiers restriction)
void	setOffset(Long offset)
<T> void	setParam(ParamExpression<T> param, T value)
void	setUnique(boolean unique)
void	setValidate(boolean v)

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT

public static final QueryMetadata DEFAULT

Constructor Detail

EmptyMetadata

public EmptyMetadata()

Method Detail

addGroupBy

public void addGroupBy(Expression<?> o)

Description copied from interface: QueryMetadata

Add the given group by expressions

Specified by:

addGroupBy in interface QueryMetadata

addHaving

public void addHaving(Predicate o)

Description copied from interface: QueryMetadata

Add the given having expressions

Specified by:

addHaving in interface QueryMetadata

addJoin

public void addJoin(JoinType joinType,
           Expression<?> expr)

Description copied from interface: QueryMetadata

Add the given query join

Specified by:

addJoin in interface QueryMetadata

addJoinCondition

public void addJoinCondition(Predicate o)

Description copied from interface: QueryMetadata

Add the given join condition to the last given join

Specified by:

addJoinCondition in interface QueryMetadata

addOrderBy

public void addOrderBy(OrderSpecifier<?> o)

Description copied from interface: QueryMetadata

Add the given order specifiers

Specified by:

addOrderBy in interface QueryMetadata

addProjection

public void addProjection(Expression<?> o)

Description copied from interface: QueryMetadata

Add the given projections

Specified by:

addProjection in interface QueryMetadata

addWhere

public void addWhere(Predicate o)

Description copied from interface: QueryMetadata

Add the given where expressions

Specified by:

addWhere in interface QueryMetadata

clearOrderBy

public void clearOrderBy()

Description copied from interface: QueryMetadata

Clear the order expressions

Specified by:

clearOrderBy in interface QueryMetadata

clearProjection

public void clearProjection()

Description copied from interface: QueryMetadata

Clear the projection

Specified by:

clearProjection in interface QueryMetadata

clearWhere

public void clearWhere()

Description copied from interface: QueryMetadata

Clear the where expressions

Specified by:

clearWhere in interface QueryMetadata

clone

public QueryMetadata clone()

Description copied from interface: QueryMetadata

Clone this QueryMetadata instance

Specified by:

clone in interface QueryMetadata

Overrides:

clone in class Object

Returns:

getGroupBy

public List<Expression<?>> getGroupBy()

Description copied from interface: QueryMetadata

Get the group by expressions

Specified by:

getGroupBy in interface QueryMetadata

Returns:

getHaving

public Predicate getHaving()

Description copied from interface: QueryMetadata

Get the having expressions

Specified by:

getHaving in interface QueryMetadata

Returns:

getJoins

public List<JoinExpression> getJoins()

Description copied from interface: QueryMetadata

Get the query joins

Specified by:

getJoins in interface QueryMetadata

Returns:

getModifiers

public QueryModifiers getModifiers()

Description copied from interface: QueryMetadata

Get the QueryModifiers

Specified by:

getModifiers in interface QueryMetadata

Returns:

getOrderBy

public List<OrderSpecifier<?>> getOrderBy()

Description copied from interface: QueryMetadata

Get the OrderSpecifiers

Specified by:

getOrderBy in interface QueryMetadata

Returns:

getProjection

public List<Expression<?>> getProjection()

Description copied from interface: QueryMetadata

Get the projection

Specified by:

getProjection in interface QueryMetadata

Returns:

getParams

public Map<ParamExpression<?>,Object> getParams()

Description copied from interface: QueryMetadata

Get the parameters

Specified by:

getParams in interface QueryMetadata

Returns:

getWhere

public Predicate getWhere()

Description copied from interface: QueryMetadata

Get the expressions aggregated into a single boolean expression or null, if none where defined

Specified by:

getWhere in interface QueryMetadata

Returns:

isDistinct

public boolean isDistinct()

Description copied from interface: QueryMetadata

Get whether the projection is distinct

Specified by:

isDistinct in interface QueryMetadata

Returns:

isUnique

public boolean isUnique()

Description copied from interface: QueryMetadata

Get whether the projection is unique

Specified by:

isUnique in interface QueryMetadata

Returns:

reset

public void reset()

Description copied from interface: QueryMetadata

Reset the projection

Specified by:

reset in interface QueryMetadata

setDistinct

public void setDistinct(boolean distinct)

Specified by:

setDistinct in interface QueryMetadata

setLimit

public void setLimit(Long limit)

Specified by:

setLimit in interface QueryMetadata

setModifiers

public void setModifiers(QueryModifiers restriction)

Specified by:

setModifiers in interface QueryMetadata

setOffset

public void setOffset(Long offset)

Specified by:

setOffset in interface QueryMetadata

setUnique

public void setUnique(boolean unique)

Specified by:

setUnique in interface QueryMetadata

setParam

public <T> void setParam(ParamExpression<T> param,
                T value)

Specified by:

setParam in interface QueryMetadata

addFlag

public void addFlag(QueryFlag flag)

Specified by:

addFlag in interface QueryMetadata

hasFlag

public boolean hasFlag(QueryFlag flag)

Specified by:

hasFlag in interface QueryMetadata

Returns:

getFlags

public Set<QueryFlag> getFlags()

Specified by:

getFlags in interface QueryMetadata

Returns:

setValidate

public void setValidate(boolean v)

Specified by:

setValidate in interface QueryMetadata

addJoinFlag

public void addJoinFlag(JoinFlag flag)

Description copied from interface: QueryMetadata

Add the given join flag to the last given join

Specified by:

addJoinFlag in interface QueryMetadata