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org.eclipse.persistence.jpa.internal.jpql
Interface ContentAssistVisitor.SelectStatementHelper<T extends AbstractSelectStatement,C extends Expression>

All Known Implementing Classes:

ContentAssistVisitor.AbstractFromClauseSelectStatementHelper, ContentAssistVisitor.AbstractGroupByClauseSelectStatementHelper, ContentAssistVisitor.AbstractHavingClauseSelectStatementHelper, ContentAssistVisitor.AbstractSelectClauseSelectStatementHelper, ContentAssistVisitor.AbstractWhereClauseSelectStatementHelper, ContentAssistVisitor.FromClauseSelectStatementHelper, ContentAssistVisitor.GroupByClauseSelectStatementHelper, ContentAssistVisitor.HavingClauseSelectStatementHelper, ContentAssistVisitor.OrderByClauseSelectStatementHelper, ContentAssistVisitor.SelectClauseSelectStatementHelper, ContentAssistVisitor.SimpleFromClauseSelectStatementHelper, ContentAssistVisitor.SimpleGroupByClauseSelectStatementHelper, ContentAssistVisitor.SimpleHavingClauseSelectStatementHelper, ContentAssistVisitor.SimpleSelectClauseSelectStatementHelper, ContentAssistVisitor.SimpleWhereClauseSelectStatementHelper, ContentAssistVisitor.WhereClauseSelectStatementHelper

Enclosing class:

ContentAssistVisitor

private static interface ContentAssistVisitor.SelectStatementHelper<T extends AbstractSelectStatement,C extends Expression>

Method Summary

void	addClauseProposal() Adds the JPQL identifier of the clause being scanned by this helper.
void	appendNextClauseProposals(T expression, C 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.
C	getClause(T expression) Returns the clause being scanned by this helper.
Expression	getClauseExpression(C clause) Returns the clause's expression.
ContentAssistVisitor.SelectStatementHelper<? extends AbstractSelectStatement,? extends Expression>	getNextHelper() Returns the ContentAssistVisitor.AbstractFromClauseSelectStatementHelper that will scan the following clause, which is based on the grammar and not on the actual existence of the clause in the parsed tree.
ContentAssistVisitor.SelectStatementHelper<? extends AbstractSelectStatement,? extends 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(T expression) Determines whether the clause exists in the parsed tree.
boolean	hasClauseExpression(C clause) Determines whether the clause's expression exists in the parsed tree.
boolean	hasSpaceAfterClause(T expression) Determines whether there is a space (owned by the SELECT statement) after the clause being scanned by this helper.
boolean	hasSpaceBeforeClause(T 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.

Method Detail

addClauseProposal

void addClauseProposal()

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

appendNextClauseProposals

void appendNextClauseProposals(T expression,
                               C 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.

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

C getClause(T expression)

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

Parameters:

expression - The AbstractSelectStatement being visited

Returns:

The clause being scanned

getClauseExpression

Expression getClauseExpression(C clause)

Returns the clause's expression.

Parameters:

expression - The AbstractSelectStatement being visited

Returns:

The clause's expression

getNextHelper

ContentAssistVisitor.SelectStatementHelper<? extends AbstractSelectStatement,? extends Expression> getNextHelper()

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

Returns:

The ContentAssistVisitor.AbstractFromClauseSelectStatementHelper for the next clause

getPreviousHelper

ContentAssistVisitor.SelectStatementHelper<? extends AbstractSelectStatement,? extends 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.

Returns:

The ContentAssistVisitor.AbstractFromClauseSelectStatementHelper for the previous clause

hasClause

boolean hasClause(T expression)

Determines whether the clause exists in the parsed tree.

Parameters:

expression - The AbstractSelectStatement being visited

Returns:

true if the clause has been parsed; false otherwise

hasClauseExpression

boolean hasClauseExpression(C clause)

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

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

boolean hasSpaceAfterClause(T expression)

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

Parameters:

expression - The AbstractSelectStatement being visited

Returns:

true if a space follows the clause; false otherwise

hasSpaceBeforeClause

boolean hasSpaceBeforeClause(T expression)

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

Parameters:

expression - The AbstractSelectStatement being visited

Returns:

true if a space precedes the clause; false otherwise

isClauseExpressionComplete

boolean isClauseExpressionComplete(Expression expression)

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

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

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