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Expression (Hibernate API Documentation) - Hibernate 2.1.8 正式版 API 英文文档

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net.sf.hibernate.expression
Class Expression

java.lang.Object
  net.sf.hibernate.expression.Expression

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public final class Expression

extends Object

The expression package may be used by applications as a framework for building new kinds of Criterion. However, it is intended that most applications will simply use the built-in criterion types via the static factory methods of this class.

Author:

Gavin King

See Also:

Criteria

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Method Summary
static Criterion	allEq(Map propertyNameValues)           Apply an "equals" constraint to each property in the key set of a Map
static Criterion	and(Criterion lhs, Criterion rhs)           Return the conjuction of two expressions
static Criterion	between(String propertyName, Object lo, Object hi)           Apply a "between" constraint to the named property
static Conjunction	conjunction()           Group expressions together in a single conjunction (A and B and C...)
static Disjunction	disjunction()           Group expressions together in a single disjunction (A or B or C...)
static SimpleExpression	eq(String propertyName, Object value)           Apply an "equal" constraint to the named property
static Criterion	eqProperty(String propertyName, String otherPropertyName)           Apply an "equal" constraint to two properties
static SimpleExpression	ge(String propertyName, Object value)           Apply a "greater than or equal" constraint to the named property
static SimpleExpression	gt(String propertyName, Object value)           Apply a "greater than" constraint to the named property
static Criterion	ilike(String propertyName, Object value)           A case-insensitive "like", similar to Postgres ilike operator
static Criterion	ilike(String propertyName, String value, MatchMode matchMode)           A case-insensitive "like", similar to Postgres ilike operator
static Criterion	in(String propertyName, Collection values)           Apply an "in" constraint to the named property
static Criterion	in(String propertyName, Object[] values)           Apply an "in" constraint to the named property
static Criterion	isNotNull(String propertyName)           Apply an "is not null" constraint to the named property
static Criterion	isNull(String propertyName)           Apply an "is null" constraint to the named property
static SimpleExpression	le(String propertyName, Object value)           Apply a "less than or equal" constraint to the named property
static Criterion	leProperty(String propertyName, String otherPropertyName)           Apply a "less than or equal" constraint to two properties
static SimpleExpression	like(String propertyName, Object value)           Apply a "like" constraint to the named property
static SimpleExpression	like(String propertyName, String value, MatchMode matchMode)           Apply a "like" constraint to the named property
static SimpleExpression	lt(String propertyName, Object value)           Apply a "less than" constraint to the named property
static Criterion	ltProperty(String propertyName, String otherPropertyName)           Apply a "less than" constraint to two properties
static Criterion	not(Criterion expression)           Return the negation of an expression
static Criterion	or(Criterion lhs, Criterion rhs)           Return the disjuction of two expressions
static Criterion	sql(String sql)           Apply a constraint expressed in SQL.
static Criterion	sql(String sql, Object[] values, Type[] types)           Apply a constraint expressed in SQL, with the given JDBC parameters.
static Criterion	sql(String sql, Object value, Type type)           Apply a constraint expressed in SQL, with the given JDBC parameter.

 

Methods inherited from class java.lang.Object

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

 

Method Detail

eq

public static SimpleExpression eq(String propertyName,
                                  Object value)

Apply an "equal" constraint to the named property

Parameters:

propertyName -

value -

Returns:

Criterion

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like

public static SimpleExpression like(String propertyName,
                                    Object value)

Apply a "like" constraint to the named property

Parameters:

propertyName -

value -

Returns:

Criterion

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like

public static SimpleExpression like(String propertyName,
                                    String value,
                                    MatchMode matchMode)

Apply a "like" constraint to the named property

Parameters:

propertyName -

value -

Returns:

Criterion

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ilike

public static Criterion ilike(String propertyName,
                              String value,
                              MatchMode matchMode)

A case-insensitive "like", similar to Postgres ilike operator

Parameters:

propertyName -

value -

Returns:

Criterion

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ilike

public static Criterion ilike(String propertyName,
                              Object value)

A case-insensitive "like", similar to Postgres ilike operator

Parameters:

propertyName -

value -

Returns:

Criterion

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gt

public static SimpleExpression gt(String propertyName,
                                  Object value)

Apply a "greater than" constraint to the named property

Parameters:

propertyName -

value -

Returns:

Criterion

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lt

public static SimpleExpression lt(String propertyName,
                                  Object value)

Apply a "less than" constraint to the named property

Parameters:

propertyName -

value -

Returns:

Criterion

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le

public static SimpleExpression le(String propertyName,
                                  Object value)

Apply a "less than or equal" constraint to the named property

Parameters:

propertyName -

value -

Returns:

Criterion

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ge

public static SimpleExpression ge(String propertyName,
                                  Object value)

Apply a "greater than or equal" constraint to the named property

Parameters:

propertyName -

value -

Returns:

Criterion

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between

public static Criterion between(String propertyName,
                                Object lo,
                                Object hi)

Apply a "between" constraint to the named property

Parameters:

propertyName -

lo - value

hi - value

Returns:

Criterion

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in

public static Criterion in(String propertyName,
                           Object[] values)

Apply an "in" constraint to the named property

Parameters:

propertyName -

values -

Returns:

Criterion

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in

public static Criterion in(String propertyName,
                           Collection values)

Apply an "in" constraint to the named property

Parameters:

propertyName -

values -

Returns:

Criterion

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isNull

public static Criterion isNull(String propertyName)

Apply an "is null" constraint to the named property

Returns:

Criterion

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eqProperty

public static Criterion eqProperty(String propertyName,
                                   String otherPropertyName)

Apply an "equal" constraint to two properties

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ltProperty

public static Criterion ltProperty(String propertyName,
                                   String otherPropertyName)

Apply a "less than" constraint to two properties

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leProperty

public static Criterion leProperty(String propertyName,
                                   String otherPropertyName)

Apply a "less than or equal" constraint to two properties

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isNotNull

public static Criterion isNotNull(String propertyName)

Apply an "is not null" constraint to the named property

Returns:

Criterion

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and

public static Criterion and(Criterion lhs,
                            Criterion rhs)

Return the conjuction of two expressions

Parameters:

lhs -

rhs -

Returns:

Criterion

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or

public static Criterion or(Criterion lhs,
                           Criterion rhs)

Return the disjuction of two expressions

Parameters:

lhs -

rhs -

Returns:

Criterion

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not

public static Criterion not(Criterion expression)

Return the negation of an expression

Parameters:

expression -

Returns:

Criterion

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sql

public static Criterion sql(String sql,
                            Object[] values,
                            Type[] types)

Apply a constraint expressed in SQL, with the given JDBC parameters. Any occurrences of {alias} will be replaced by the table alias.

Parameters:

sql -

values -

types -

Returns:

Criterion

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sql

public static Criterion sql(String sql,
                            Object value,
                            Type type)

Apply a constraint expressed in SQL, with the given JDBC parameter. Any occurrences of {alias} will be replaced by the table alias.

Parameters:

sql -

value -

type -

Returns:

Criterion

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sql

public static Criterion sql(String sql)

Apply a constraint expressed in SQL. Any occurrences of {alias} will be replaced by the table alias.

Parameters:

sql -

Returns:

Criterion

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conjunction

public static Conjunction conjunction()

Group expressions together in a single conjunction (A and B and C...)

Returns:

Conjunction

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disjunction

public static Disjunction disjunction()

Group expressions together in a single disjunction (A or B or C...)

Returns:

Conjunction

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allEq

public static Criterion allEq(Map propertyNameValues)

Apply an "equals" constraint to each property in the key set of a Map

Parameters:

propertyNameValues - a map from property names to values

Returns:

Criterion

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