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

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org.hibernate.hql.ast.tree
Class DotNode

java.lang.Object
  antlr.BaseAST
      antlr.CommonAST
          org.hibernate.hql.ast.tree.Node
              org.hibernate.hql.ast.tree.SqlNode
                  org.hibernate.hql.ast.tree.HqlSqlWalkerNode
                      org.hibernate.hql.ast.tree.AbstractSelectExpression
                          org.hibernate.hql.ast.tree.FromReferenceNode
                              org.hibernate.hql.ast.tree.DotNode

All Implemented Interfaces:

antlr.collections.AST, DisplayableNode, InitializeableNode, PathNode, ResolvableNode, SelectExpression, Serializable

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public class DotNode

extends FromReferenceNode

implements DisplayableNode, SelectExpression

Represents a reference to a property or alias expression. This should duplicate the relevant behaviors in PathExpressionParser.

Author:

Joshua Davis

See Also:

Serialized Form

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Nested Class Summary
static interface	DotNode.IllegalCollectionDereferenceExceptionBuilder

 

Field Summary
static DotNode.IllegalCollectionDereferenceExceptionBuilder	DEF_ILLEGAL_COLL_DEREF_EXCP_BUILDER
static DotNode.IllegalCollectionDereferenceExceptionBuilder	ILLEGAL_COLL_DEREF_EXCP_BUILDER
static boolean	REGRESSION_STYLE_JOIN_SUPPRESSION
static boolean	useThetaStyleImplicitJoins

 

Fields inherited from class org.hibernate.hql.ast.tree.FromReferenceNode

ROOT_LEVEL

 

Fields inherited from class antlr.BaseAST

down, right

 

Constructor Summary

DotNode()

 

Method Summary
Type	getDataType()           Returns the data type of the select expression.
String	getDisplayText()           Returns additional display text for the AST node.
FromElement	getImpliedJoin()           Sub-classes can override this method if they produce implied joins (e.g.
FromReferenceNode	getLhs()
String	getPath()           Returns the full path of the node.
String	getPropertyPath()
void	resolve(boolean generateJoin, boolean implicitJoin, String classAlias, antlr.collections.AST parent)           Does the work of resolving an identifier or a dot
void	resolveFirstChild()           Resolves the left hand side of the DOT.
void	resolveIndex(antlr.collections.AST parent)           Does the work of resolving an an index [].
void	resolveInFunctionCall(boolean generateJoin, boolean implicitJoin)           Does the work of resolving inside of the scope of a function call
void	resolveSelectExpression()           Special method to resolve expressions in the SELECT list.
void	setFetch(boolean fetch)
void	setJoinType(int joinType)           Sets the join type for this '.' node structure.
void	setPropertyPath(String propertyPath)
void	setResolvedConstant(String text)
void	setScalarColumnText(int i)           Appends AST nodes that represent the columns after the current AST node.

 

Methods inherited from class org.hibernate.hql.ast.tree.FromReferenceNode

getFromElement, isResolved, isReturnableEntity, prepareForDot, recursiveResolve, recursiveResolve, resolve, resolve, setFromElement, setResolved

 

Methods inherited from class org.hibernate.hql.ast.tree.AbstractSelectExpression

getAlias, isConstructor, isScalar, setAlias

 

Methods inherited from class org.hibernate.hql.ast.tree.HqlSqlWalkerNode

getAliasGenerator, getASTFactory, getSessionFactoryHelper, getWalker, initialize

 

Methods inherited from class org.hibernate.hql.ast.tree.SqlNode

getOriginalText, setDataType, setText

 

Methods inherited from class org.hibernate.hql.ast.tree.Node

getColumn, getFilename, getLine, getRenderText, getTextLength, initialize, initialize

 

Methods inherited from class antlr.CommonAST

getText, getType, initialize, setType

 

Methods inherited from class antlr.BaseAST

addChild, decode, encode, equals, equalsList, equalsListPartial, equalsTree, equalsTreePartial, findAll, findAllPartial, getFirstChild, getNextSibling, getNumberOfChildren, getTokenNames, removeChildren, setFirstChild, setNextSibling, setVerboseStringConversion, toString, toStringList, toStringTree, xmlSerialize, xmlSerializeNode, xmlSerializeRootClose, xmlSerializeRootOpen

 

Methods inherited from class java.lang.Object

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

 

Methods inherited from interface org.hibernate.hql.ast.tree.SelectExpression

getAlias, getFromElement, isConstructor, isReturnableEntity, isScalar, setAlias, setText

 

Methods inherited from interface org.hibernate.hql.ast.tree.InitializeableNode

initialize

 

Field Detail

useThetaStyleImplicitJoins

public static boolean useThetaStyleImplicitJoins

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REGRESSION_STYLE_JOIN_SUPPRESSION

public static boolean REGRESSION_STYLE_JOIN_SUPPRESSION

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DEF_ILLEGAL_COLL_DEREF_EXCP_BUILDER

public static final DotNode.IllegalCollectionDereferenceExceptionBuilder DEF_ILLEGAL_COLL_DEREF_EXCP_BUILDER

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ILLEGAL_COLL_DEREF_EXCP_BUILDER

public static DotNode.IllegalCollectionDereferenceExceptionBuilder ILLEGAL_COLL_DEREF_EXCP_BUILDER

Constructor Detail

DotNode

public DotNode()

Method Detail

setJoinType

public void setJoinType(int joinType)

Sets the join type for this '.' node structure.

Parameters:

joinType - The type of join to use.

See Also:

JoinFragment

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getDisplayText

public String getDisplayText()

Description copied from interface: DisplayableNode

Returns additional display text for the AST node.

Specified by:

getDisplayText in interface DisplayableNode

Overrides:

getDisplayText in class FromReferenceNode

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resolveFirstChild

public void resolveFirstChild()
                       throws antlr.SemanticException

Resolves the left hand side of the DOT.

Overrides:

resolveFirstChild in class FromReferenceNode

Throws:

antlr.SemanticException

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resolveInFunctionCall

public void resolveInFunctionCall(boolean generateJoin,
                                  boolean implicitJoin)
                           throws antlr.SemanticException

Description copied from interface: ResolvableNode

Does the work of resolving inside of the scope of a function call

Specified by:

resolveInFunctionCall in interface ResolvableNode

Overrides:

resolveInFunctionCall in class FromReferenceNode

Throws:

antlr.SemanticException

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resolveIndex

public void resolveIndex(antlr.collections.AST parent)
                  throws antlr.SemanticException

Description copied from interface: ResolvableNode

Does the work of resolving an an index [].

Specified by:

resolveIndex in interface ResolvableNode

Throws:

antlr.SemanticException

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resolve

public void resolve(boolean generateJoin,
                    boolean implicitJoin,
                    String classAlias,
                    antlr.collections.AST parent)
             throws antlr.SemanticException

Description copied from interface: ResolvableNode

Does the work of resolving an identifier or a dot

Specified by:

resolve in interface ResolvableNode

Throws:

antlr.SemanticException

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getImpliedJoin

public FromElement getImpliedJoin()

Description copied from class: FromReferenceNode

Sub-classes can override this method if they produce implied joins (e.g. DotNode).

Overrides:

getImpliedJoin in class FromReferenceNode

Returns:

an implied join created by this from reference.

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getDataType

public Type getDataType()

Description copied from interface: SelectExpression

Returns the data type of the select expression.

Specified by:

getDataType in interface SelectExpression

Overrides:

getDataType in class SqlNode

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setPropertyPath

public void setPropertyPath(String propertyPath)

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getPropertyPath

public String getPropertyPath()

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getLhs

public FromReferenceNode getLhs()

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getPath

public String getPath()

Returns the full path of the node.

Specified by:

getPath in interface PathNode

Overrides:

getPath in class FromReferenceNode

Returns:

the full path of the node.

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setFetch

public void setFetch(boolean fetch)

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setScalarColumnText

public void setScalarColumnText(int i)
                         throws antlr.SemanticException

Description copied from interface: SelectExpression

Appends AST nodes that represent the columns after the current AST node. (e.g. 'as col0_O_')

Specified by:

setScalarColumnText in interface SelectExpression

Parameters:

i - The index of the select expression in the projection list.

Throws:

antlr.SemanticException

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resolveSelectExpression

public void resolveSelectExpression()
                             throws antlr.SemanticException

Special method to resolve expressions in the SELECT list.

Throws:

antlr.SemanticException - if this cannot be resolved.

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setResolvedConstant

public void setResolvedConstant(String text)

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