com.tangosol.coherence.dslquery.statement

Class AbstractStatementBuilder<T extends Statement>

java.lang.Object

com.tangosol.coherence.dslquery.statement.AbstractStatementBuilder<T>

All Implemented Interfaces:

StatementBuilder<T>

Direct Known Subclasses:

ArchiveSnapshotStatementBuilder, BackupStatementBuilder, CreateCacheStatementBuilder, CreateIndexStatementBuilder, CreateSnapshotStatementBuilder, DeleteStatementBuilder, DropCacheStatementBuilder, DropIndexStatementBuilder, ForceRecoveryStatementBuilder, InsertStatementBuilder, ListArchiverStatementBuilder, ListServicesStatementBuilder, ListSnapshotsStatementBuilder, QueryRecorderStatementBuilder, RecoverSnapshotStatementBuilder, RemoveSnapshotStatementBuilder, RestoreStatementBuilder, ResumeServiceStatementBuilder, RetrieveSnapshotStatementBuilder, SelectStatementBuilder, SourceStatementBuilder, SuspendServiceStatementBuilder, TruncateCacheStatementBuilder, UpdateStatementBuilder, ValidateSnapshotStatementBuilder

public abstract class AbstractStatementBuilder<T extends Statement>
extends Object
implements StatementBuilder<T>

A base class for StatementBuilder implementations.

Since:

Coherence 12.2.1

Author:

jk 2013.12.09

Constructor Summary

Constructors

Constructor and Description
AbstractStatementBuilder()

Method Summary

Modifier and Type	Method and Description
protected static String	atomicStringValueOf(Term t) Return a String that is the value of the given Term.
protected static Filter	ensureFilter(NodeTerm termWhere, String sCacheName, String sAlias, List listBindVars, com.tangosol.config.expression.ParameterResolver namedBindVars, ExecutionContext ctx) Build a Filter for the given cache using the given where clause, alias and bind environments.
protected static String	getAlias(NodeTerm sn) Return the String that represents the cache name alias from the given AST node by looking for the "alias" term in the AST.
protected static String	getCacheName(NodeTerm sn) Return the String that represents the cache name from the given AST node by looking for the "from" term AST.
protected static Term	getExtractor(NodeTerm sn) Return the AST node that represents the extractor for an index from the given AST node.
protected static NodeTerm	getFields(NodeTerm sn) Return the AST node that represents the fields to select from the given AST node.
protected static String	getFile(NodeTerm sn) Return the String that represents the filename from the given AST node by looking for the "file" term in the AST.
protected static NodeTerm	getGroupBy(NodeTerm sn) Return the AST node that represents the group by fields from the given AST node.
protected static Term	getInsertKey(NodeTerm sn) Return the AST node that represents the key to insert from the given AST node.
protected static Term	getInsertValue(NodeTerm sn) Return the AST node that represents the value to insert from the given AST node.
protected static boolean	getIsDistinct(NodeTerm sn) Return the boolean that indicates whether distinctness in indicated in the given AST node.
protected static Term	getSetList(NodeTerm sn) Return the AST node that represents the list of "Set statements" from the given AST node.
protected static NodeTerm	getWhere(NodeTerm sn) Return the AST node that represents the where clause from the given AST node.
protected static boolean	headsMatch(NodeTerm fieldList, NodeTerm groupByList) Test to see if the AST for the group-by is equal to the head of the list from the select clause AST.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.tangosol.coherence.dslquery.StatementBuilder

getDescription, getSyntax, realize

Constructor Detail

AbstractStatementBuilder

public AbstractStatementBuilder()

Method Detail

ensureFilter

protected static Filter ensureFilter(NodeTerm termWhere,
                                     String sCacheName,
                                     String sAlias,
                                     List listBindVars,
                                     com.tangosol.config.expression.ParameterResolver namedBindVars,
                                     ExecutionContext ctx)

Build a Filter for the given cache using the given where clause, alias and bind environments.

Parameters:

termWhere - the NodeTerm containing the where clause

sCacheName - the name of the cache that the filter will be built for

sAlias - the table/cache alias used in the where clause, may be null

listBindVars - bind variables to be used to replace any numeric bind variables in the where clause

namedBindVars - named bind variables to be used to replace any named bind variables in the where clause

ctx - the ExecutionContext to use

Returns:

a Filter created from the given where clause

atomicStringValueOf

protected static String atomicStringValueOf(Term t)

Return a String that is the value of the given Term.

Parameters:

t - the Term that is atomic

Returns:

return the String found in the AtomicTerm

getCacheName

protected static String getCacheName(NodeTerm sn)

Return the String that represents the cache name from the given AST node by looking for the "from" term AST.

Parameters:

sn - the syntax node

Returns:

return the String found in the AST node

getAlias

protected static String getAlias(NodeTerm sn)

Return the String that represents the cache name alias from the given AST node by looking for the "alias" term in the AST.

Parameters:

sn - the syntax node

Returns:

return the String found in the AST node

getFile

protected static String getFile(NodeTerm sn)

Return the String that represents the filename from the given AST node by looking for the "file" term in the AST.

Parameters:

sn - the syntax node

Returns:

return the String found in the AST node

getIsDistinct

protected static boolean getIsDistinct(NodeTerm sn)

Return the boolean that indicates whether distinctness in indicated in the given AST node.

Parameters:

sn - the syntax node

Returns:

return the boolean result of testing the node

getWhere

protected static NodeTerm getWhere(NodeTerm sn)

Return the AST node that represents the where clause from the given AST node.

Parameters:

sn - the syntax node

Returns:

return the AST node found in the parent AST node

getFields

protected static NodeTerm getFields(NodeTerm sn)

Return the AST node that represents the fields to select from the given AST node.

Parameters:

sn - the syntax node

Returns:

return the AST node found in the parent AST node

getInsertKey

protected static Term getInsertKey(NodeTerm sn)

Return the AST node that represents the key to insert from the given AST node.

Parameters:

sn - the syntax node

Returns:

return the AST node found in the parent AST node

getInsertValue

protected static Term getInsertValue(NodeTerm sn)

Return the AST node that represents the value to insert from the given AST node.

Parameters:

sn - the syntax node

Returns:

return the AST node found in the parent AST node

getGroupBy

protected static NodeTerm getGroupBy(NodeTerm sn)

Return the AST node that represents the group by fields from the given AST node.

Parameters:

sn - the syntax node

Returns:

return the AST node found in the parent AST node

getSetList

protected static Term getSetList(NodeTerm sn)

Return the AST node that represents the list of "Set statements" from the given AST node.

Parameters:

sn - the syntax node

Returns:

return the AST node found in the parent AST node

getExtractor

protected static Term getExtractor(NodeTerm sn)

Return the AST node that represents the extractor for an index from the given AST node.

Parameters:

sn - the syntax node

Returns:

return the AST node found in the parent AST node

headsMatch

protected static boolean headsMatch(NodeTerm fieldList,
                                    NodeTerm groupByList)

Test to see if the AST for the group-by is equal to the head of the list from the select clause AST.

Parameters:

fieldList - the list of fields in a select list

groupByList - the list of fields in a group by clause

Returns:

return the results of matching