org.apache.jackrabbit.core.query
Class QueryObjectModelImpl

java.lang.Object
  org.apache.jackrabbit.core.query.AbstractQueryImpl
      org.apache.jackrabbit.core.query.QueryImpl
          org.apache.jackrabbit.core.query.QueryObjectModelImpl

All Implemented Interfaces:

QueryObjectModel, Query

public class QueryObjectModelImpl
extends QueryImpl
implements QueryObjectModel

QueryObjectModelImpl implements the query object model.

Field Summary

protected QueryObjectModelTree

qomTree The query object model tree.

Fields inherited from class org.apache.jackrabbit.core.query.QueryImpl

handler, language, limit, node, offset, query, sessionContext, statement

Fields inherited from interface javax.jcr.query.Query

JCR_JQOM, JCR_SQL2, SQL, XPATH

Constructor Summary

QueryObjectModelImpl()

Method Summary

void	bindValue(String varName, Value value) Throws an IllegalArgumentException as XPath and SQL1 queries have no bind variables.
QueryResult	execute() This method simply forwards the execute call to the ExecutableQuery object returned by QueryHandler.createExecutableQuery(org.apache.jackrabbit.core.session.SessionContext, java.lang.String, java.lang.String).
String[]	getBindVariableNames()
Column[]	getColumns() Gets the columns for this query.
Constraint	getConstraint() Gets the constraint for this query.
Ordering[]	getOrderings() Gets the orderings for this query.
Source	getSource() Gets the node-tuple source for this query.
void	init(SessionContext sessionContext, QueryHandler handler, QueryObjectModelTree qomTree, String language, Node node) Initializes a query instance from a query object model.
void	init(SessionContext sessionContext, QueryHandler handler, String statement, String language, Node node) Initialises a query instance from a query string.

Methods inherited from class org.apache.jackrabbit.core.query.QueryImpl

checkInitialized, checkNotInitialized, getLanguage, getStatement, getStoredQueryPath, setInitialized, setLimit, setOffset, storeAsNode

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.jcr.query.Query

getLanguage, getStatement, getStoredQueryPath, setLimit, setOffset, storeAsNode

Field Detail

qomTree

protected QueryObjectModelTree qomTree

The query object model tree.

Constructor Detail

QueryObjectModelImpl

public QueryObjectModelImpl()

Method Detail

init

public void init(SessionContext sessionContext,
                 QueryHandler handler,
                 String statement,
                 String language,
                 Node node)
          throws InvalidQueryException

Initialises a query instance from a query string.

Overrides:

init in class QueryImpl

Parameters:

sessionContext - component context of the current session

handler - the query handler of the search index.

statement - the query statement.

language - the syntax of the query statement.

node - a nt:query node where the query was read from or null if it is not a stored query.

Throws:

UnsupportedOperationException - always.

InvalidQueryException - if the query statement is invalid according to the specified language.

init

public void init(SessionContext sessionContext,
                 QueryHandler handler,
                 QueryObjectModelTree qomTree,
                 String language,
                 Node node)
          throws InvalidQueryException,
                 RepositoryException

Initializes a query instance from a query object model.

Parameters:

sessionContext - component context of the current session

handler - the query handler of the search index.

qomTree - the query object model tree.

language - the original query syntax from where the JQOM was created.

node - a nt:query node where the query was read from or null if it is not a stored query.

Throws:

InvalidQueryException - if the qom tree cannot be serialized according to the given language.

RepositoryException - if another error occurs

execute

public QueryResult execute()
                    throws RepositoryException

Description copied from class: QueryImpl

This method simply forwards the execute call to the ExecutableQuery object returned by QueryHandler.createExecutableQuery(org.apache.jackrabbit.core.session.SessionContext, java.lang.String, java.lang.String).

Specified by:

execute in interface Query

Overrides:

execute in class QueryImpl

Throws:

RepositoryException

getBindVariableNames

public String[] getBindVariableNames()

Description copied from class: QueryImpl

Specified by:

getBindVariableNames in interface Query

Overrides:

getBindVariableNames in class QueryImpl

bindValue

public void bindValue(String varName,
                      Value value)
               throws IllegalArgumentException

Description copied from class: QueryImpl

Throws an IllegalArgumentException as XPath and SQL1 queries have no bind variables.

Specified by:

bindValue in interface Query

Overrides:

bindValue in class QueryImpl

Throws:

IllegalArgumentException - always thrown

getSource

public Source getSource()

Gets the node-tuple source for this query.

Specified by:

getSource in interface QueryObjectModel

Returns:

the node-tuple source; non-null

getConstraint

public Constraint getConstraint()

Gets the constraint for this query.

Specified by:

getConstraint in interface QueryObjectModel

Returns:

the constraint, or null if none

getOrderings

public Ordering[] getOrderings()

Gets the orderings for this query.

Specified by:

getOrderings in interface QueryObjectModel

Returns:

an array of zero or more orderings; non-null

getColumns

public Column[] getColumns()

Gets the columns for this query.

Specified by:

getColumns in interface QueryObjectModel

Returns:

an array of zero or more columns; non-null