org.hibernate.hql.ast.tree
Class AbstractRestrictableStatement

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.AbstractStatement
                          org.hibernate.hql.ast.tree.AbstractRestrictableStatement

All Implemented Interfaces:

antlr.collections.AST, Serializable, DisplayableNode, InitializeableNode, RestrictableStatement, Statement

Direct Known Subclasses:

DeleteStatement, QueryNode, UpdateStatement

public abstract class AbstractRestrictableStatement
extends AbstractStatement
implements RestrictableStatement

Convenience implementation of RestrictableStatement to centralize common functionality.

Author:

Steve Ebersole

See Also:

Serialized Form

Field Summary

Fields inherited from class antlr.BaseAST

down, right

Constructor Summary

AbstractRestrictableStatement()

Method Summary

FromClause	getFromClause() Retreives the from-clause in effect for this statement.
protected abstract org.apache.commons.logging.Log	getLog()
antlr.collections.AST	getWhereClause() Retreives the where-clause defining the restriction(s) in effect for this statement.
protected abstract int	getWhereClauseParentTokenType()
boolean	hasWhereClause() Does this statement tree currently contain a where clause?
protected antlr.collections.AST	locateWhereClause()

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

getDisplayText

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

getDataType, 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.Statement

getStatementType, getWalker, needsExecutor

Constructor Detail

AbstractRestrictableStatement

public AbstractRestrictableStatement()

Method Detail

getWhereClauseParentTokenType

protected abstract int getWhereClauseParentTokenType()

getLog

protected abstract org.apache.commons.logging.Log getLog()

getFromClause

public final FromClause getFromClause()

Description copied from interface: RestrictableStatement

Retreives the from-clause in effect for this statement.

Specified by:

getFromClause in interface RestrictableStatement

Returns:

The from-clause for this statement; could be null if the from-clause has not yet been parsed/generated.

See Also:

RestrictableStatement.getFromClause()

hasWhereClause

public final boolean hasWhereClause()

Description copied from interface: RestrictableStatement

Does this statement tree currently contain a where clause?

Specified by:

hasWhereClause in interface RestrictableStatement

Returns:

True if a where-clause is found in the statement tree and that where clause actually defines restrictions; false otherwise.

See Also:

RestrictableStatement.hasWhereClause()

getWhereClause

public final antlr.collections.AST getWhereClause()

Description copied from interface: RestrictableStatement

Retreives the where-clause defining the restriction(s) in effect for this statement.

Note that this will generate a where-clause if one was not found, so caution needs to taken prior to calling this that restrictions will actually exist in the resulting statement tree (otherwise "unexpected end of subtree" errors might occur during rendering).

Specified by:

getWhereClause in interface RestrictableStatement

Returns:

The where clause.

See Also:

RestrictableStatement.getWhereClause()

locateWhereClause

protected antlr.collections.AST locateWhereClause()