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JoinFragment (Hibernate API Documentation) - Hibernate 3.2.3 正式版 API 英文文档

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org.hibernate.sql
Class JoinFragment

java.lang.Object
  org.hibernate.sql.JoinFragment

Direct Known Subclasses:

ANSIJoinFragment, OracleJoinFragment, QueryJoinFragment, Sybase11JoinFragment

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public abstract class JoinFragment

extends Object

An abstract SQL join fragment renderer

Author:

Gavin King

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Field Summary
static int	FULL_JOIN
static int	INNER_JOIN
static int	LEFT_OUTER_JOIN
static int	RIGHT_OUTER_JOIN

 

Constructor Summary

JoinFragment()

 

Method Summary
abstract  boolean	addCondition(String condition)
protected  boolean	addCondition(StringBuffer buffer, String on)           Appends the 'on' condition to the buffer, returning true if the condition was added.
abstract  void	addCondition(String alias, String[] fkColumns, String[] pkColumns)
abstract  void	addCrossJoin(String tableName, String alias)
void	addFragment(JoinFragment ojf)
abstract  void	addJoin(String tableName, String alias, String[] fkColumns, String[] pkColumns, int joinType)
abstract  void	addJoin(String tableName, String alias, String[] fkColumns, String[] pkColumns, int joinType, String on)
abstract  void	addJoins(String fromFragment, String whereFragment)
abstract  JoinFragment	copy()
boolean	hasFilterCondition()           True if the where fragment is from a filter condition.
boolean	hasThetaJoins()
void	setHasFilterCondition(boolean b)
void	setHasThetaJoins(boolean hasThetaJoins)
abstract  String	toFromFragmentString()
abstract  String	toWhereFragmentString()

 

Methods inherited from class java.lang.Object

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

 

Field Detail

INNER_JOIN

public static final int INNER_JOIN

See Also:

Constant Field Values

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FULL_JOIN

public static final int FULL_JOIN

See Also:

Constant Field Values

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LEFT_OUTER_JOIN

public static final int LEFT_OUTER_JOIN

See Also:

Constant Field Values

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RIGHT_OUTER_JOIN

public static final int RIGHT_OUTER_JOIN

See Also:

Constant Field Values

Constructor Detail

JoinFragment

public JoinFragment()

Method Detail

addJoin

public abstract void addJoin(String tableName,
                             String alias,
                             String[] fkColumns,
                             String[] pkColumns,
                             int joinType)

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addJoin

public abstract void addJoin(String tableName,
                             String alias,
                             String[] fkColumns,
                             String[] pkColumns,
                             int joinType,
                             String on)

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addCrossJoin

public abstract void addCrossJoin(String tableName,
                                  String alias)

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addJoins

public abstract void addJoins(String fromFragment,
                              String whereFragment)

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toFromFragmentString

public abstract String toFromFragmentString()

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toWhereFragmentString

public abstract String toWhereFragmentString()

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addCondition

public abstract void addCondition(String alias,
                                  String[] fkColumns,
                                  String[] pkColumns)

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addCondition

public abstract boolean addCondition(String condition)

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copy

public abstract JoinFragment copy()

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addFragment

public void addFragment(JoinFragment ojf)

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addCondition

protected boolean addCondition(StringBuffer buffer,
                               String on)

Appends the 'on' condition to the buffer, returning true if the condition was added. Returns false if the 'on' condition was empty.

Parameters:

buffer - The buffer to append the 'on' condition to.

on - The 'on' condition.

Returns:

Returns true if the condition was added, false if the condition was already in 'on' string.

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hasFilterCondition

public boolean hasFilterCondition()

True if the where fragment is from a filter condition.

Returns:

True if the where fragment is from a filter condition.

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setHasFilterCondition

public void setHasFilterCondition(boolean b)

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hasThetaJoins

public boolean hasThetaJoins()

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setHasThetaJoins

public void setHasThetaJoins(boolean hasThetaJoins)

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