Uses of Interface org.hibernate.criterion.Projection (Hibernate API Documentation) - Hibernate 3.2.4 正式版 API 英文文档

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Uses of Interface
org.hibernate.criterion.Projection

Packages that use Projection
org.hibernate	This package defines the central Hibernate APIs.
org.hibernate.criterion	A framework for defining restriction criteria and order criteria.
org.hibernate.impl	This package contains implementations of the central Hibernate APIs, especially the Hibernate session.

Methods in org.hibernate with parameters of type Projection

Criteria Criteria.setProjection(Projection projection)
Used to specify that the query results will be a projection (scalar in nature).

Classes in org.hibernate.criterion that implement Projection

class AggregateProjection
          An aggregation

class AliasedProjection


class AvgProjection


class CountProjection
          A count

class Distinct


class IdentifierProjection
          A property value, or grouped property value

class ProjectionList


class Property
          A factory for property-specific criterion and projection instances

class PropertyProjection
          A property value, or grouped property value

class RowCountProjection
          A row count

class SimpleProjection
          A single-column projection that may be aliased

class SQLProjection
          A SQL fragment.

Methods in org.hibernate.criterion that return Projection

Projection SimpleProjection.as(String alias)


static Projection Projections.distinct(Projection proj)
          Create a distinct projection from a projection

static Projection Projections.rowCount()
          The query row count, ie.

static Projection Projections.sqlProjection(String sql, String[] columnAliases, Type[] types)
          A SQL projection, a typed select clause fragment

static Projection Projections.sqlGroupProjection(String sql, String groupBy, String[] columnAliases, Type[] types)
          A grouping SQL projection, specifying both select clause and group by clause fragments

static Projection Projections.alias(Projection projection, String alias)
          Assign an alias to a projection, by wrapping it

Projection ProjectionList.getProjection(int i)

Methods in org.hibernate.criterion with parameters of type Projection

static Projection Projections.distinct(Projection proj)
          Create a distinct projection from a projection

static Projection Projections.alias(Projection projection, String alias)
          Assign an alias to a projection, by wrapping it

ProjectionList ProjectionList.add(Projection proj)


ProjectionList ProjectionList.add(Projection projection, String alias)


DetachedCriteria DetachedCriteria.setProjection(Projection projection)

Methods in org.hibernate.impl with parameters of type Projection

Criteria CriteriaImpl.setProjection(Projection projection)

Criteria CriteriaImpl.Subcriteria.setProjection(Projection projection)