Skip navigation links

org.eclipse.persistence.jpa.internal.jpql
Class ContentAssistVisitor.AbstractSelectClauseSelectStatementHelper

java.lang.Object
org.eclipse.persistence.jpa.internal.jpql.ContentAssistVisitor.AbstractSelectClauseSelectStatementHelper

All Implemented Interfaces:

ContentAssistVisitor.SelectStatementHelper<AbstractSelectStatement,AbstractSelectClause>

Direct Known Subclasses:

ContentAssistVisitor.SelectClauseSelectStatementHelper, ContentAssistVisitor.SimpleSelectClauseSelectStatementHelper

Enclosing class:

ContentAssistVisitor

private abstract class ContentAssistVisitor.AbstractSelectClauseSelectStatementHelper

extends java.lang.Object

implements ContentAssistVisitor.SelectStatementHelper<AbstractSelectStatement,AbstractSelectClause>

Constructor Summary

private

ContentAssistVisitor.AbstractSelectClauseSelectStatementHelper()

Method Summary

void	addClauseProposal() Adds the JPQL identifier of the clause being scanned by this helper.
void	appendNextClauseProposals(AbstractSelectStatement expression, AbstractSelectClause clause, int position, boolean complete) The position of the cursor is at the end of the given clause, requests to add the clauses' identifiers that can be added as proposals.
AbstractSelectClause	getClause(AbstractSelectStatement expression) Returns the clause being scanned by this helper.
Expression	getClauseExpression(AbstractSelectClause clause) Returns the clause's expression.
ContentAssistVisitor.SelectStatementHelper<AbstractSelectStatement,Expression>	getPreviousHelper() Returns the ContentAssistVisitor.AbstractFromClauseSelectStatementHelper that will scan the previous clause, which is based on the grammar and not on the actual existence of the clause in the parsed tree.
boolean	hasClause(AbstractSelectStatement expression) Determines whether the clause exists in the parsed tree.
boolean	hasClauseExpression(AbstractSelectClause clause) Determines whether the clause's expression exists in the parsed tree.
boolean	hasSpaceAfterClause(AbstractSelectStatement expression) Determines whether there is a space (owned by the SELECT statement) after the clause being scanned by this helper.
boolean	hasSpaceBeforeClause(AbstractSelectStatement expression) Determines whether there is a space (owned by the SELECT statement) before the clause being scanned by this helper.
boolean	isClauseExpressionComplete(Expression expression) Determines whether the clause's expression is complete or incomplete.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.persistence.jpa.internal.jpql.ContentAssistVisitor.SelectStatementHelper

getNextHelper

Constructor Detail

ContentAssistVisitor.AbstractSelectClauseSelectStatementHelper

private ContentAssistVisitor.AbstractSelectClauseSelectStatementHelper()

Method Detail

addClauseProposal

public void addClauseProposal()

Adds the JPQL identifier of the clause being scanned by this helper.

Specified by:

addClauseProposal in interface ContentAssistVisitor.SelectStatementHelper<AbstractSelectStatement,AbstractSelectClause>

appendNextClauseProposals

public void appendNextClauseProposals(AbstractSelectStatement expression,
                                      AbstractSelectClause clause,
                                      int position,
                                      boolean complete)

The position of the cursor is at the end of the given clause, requests to add the clauses' identifiers that can be added as proposals.

Specified by:

appendNextClauseProposals in interface ContentAssistVisitor.SelectStatementHelper<AbstractSelectStatement,AbstractSelectClause>

Parameters:

expression - The AbstractSelectStatement being visited

clause - The clause being scanned

position - The position of the cursor within the AbstractSelectStatement

complete - Determines whether the clause's expression is complete or not

getClause

public AbstractSelectClause getClause(AbstractSelectStatement expression)

Returns the clause being scanned by this helper. It is safe to type cast the clause because ContentAssistVisitor.SelectStatementHelper.hasClause(AbstractSelectStatement) is called before this one.

Specified by:

getClause in interface ContentAssistVisitor.SelectStatementHelper<AbstractSelectStatement,AbstractSelectClause>

Parameters:

expression - The AbstractSelectStatement being visited

Returns:

The clause being scanned

getClauseExpression

public Expression getClauseExpression(AbstractSelectClause clause)

Returns the clause's expression.

Specified by:

getClauseExpression in interface ContentAssistVisitor.SelectStatementHelper<AbstractSelectStatement,AbstractSelectClause>

Returns:

The clause's expression

getPreviousHelper

public ContentAssistVisitor.SelectStatementHelper<AbstractSelectStatement,Expression> getPreviousHelper()

Returns the ContentAssistVisitor.AbstractFromClauseSelectStatementHelper that will scan the previous clause, which is based on the grammar and not on the actual existence of the clause in the parsed tree.

Specified by:

getPreviousHelper in interface ContentAssistVisitor.SelectStatementHelper<AbstractSelectStatement,AbstractSelectClause>

Returns:

The ContentAssistVisitor.AbstractFromClauseSelectStatementHelper for the previous clause

hasClause

public boolean hasClause(AbstractSelectStatement expression)

Determines whether the clause exists in the parsed tree.

Specified by:

hasClause in interface ContentAssistVisitor.SelectStatementHelper<AbstractSelectStatement,AbstractSelectClause>

Parameters:

expression - The AbstractSelectStatement being visited

Returns:

true if the clause has been parsed; false otherwise

hasClauseExpression

public boolean hasClauseExpression(AbstractSelectClause clause)

Determines whether the clause's expression exists in the parsed tree.

Specified by:

hasClauseExpression in interface ContentAssistVisitor.SelectStatementHelper<AbstractSelectStatement,AbstractSelectClause>

Parameters:

clause - The clause being scanned

Returns:

true if the clause has its expression or a portion of it parsed; false if nothing was parsed

hasSpaceAfterClause

public boolean hasSpaceAfterClause(AbstractSelectStatement expression)

Determines whether there is a space (owned by the SELECT statement) after the clause being scanned by this helper.

Specified by:

hasSpaceAfterClause in interface ContentAssistVisitor.SelectStatementHelper<AbstractSelectStatement,AbstractSelectClause>

Parameters:

expression - The AbstractSelectStatement being visited

Returns:

true if a space follows the clause; false otherwise

hasSpaceBeforeClause

public boolean hasSpaceBeforeClause(AbstractSelectStatement expression)

Determines whether there is a space (owned by the SELECT statement) before the clause being scanned by this helper.

Specified by:

hasSpaceBeforeClause in interface ContentAssistVisitor.SelectStatementHelper<AbstractSelectStatement,AbstractSelectClause>

Parameters:

expression - The AbstractSelectStatement being visited

Returns:

true if a space precedes the clause; false otherwise

isClauseExpressionComplete

public boolean isClauseExpressionComplete(Expression expression)

Determines whether the clause's expression is complete or incomplete.

Specified by:

isClauseExpressionComplete in interface ContentAssistVisitor.SelectStatementHelper<AbstractSelectStatement,AbstractSelectClause>

Parameters:

expression - The clause's expression to verify its completeness

Returns:

true if the Expression is complete based on its content versus what the grammar expects; false otherwise

Skip navigation links