org.gecko.emf.repository.query

Class AbstractQueryBuilder

java.lang.Object

org.gecko.emf.repository.query.AbstractQueryBuilder

All Implemented Interfaces:

IQueryBuilder

public abstract class AbstractQueryBuilder
extends java.lang.Object
implements IQueryBuilder

Abstract implementation of the query builder.

Since:

26.07.2017

Field Summary

Fields inherited from interface org.gecko.emf.repository.query.IQueryBuilder

QUERY_TYPE_ALL, QUERY_TYPE_AND, QUERY_TYPE_IN, QUERY_TYPE_KEY_VALUE, QUERY_TYPE_OR, QUERY_TYPE_RANGE

Constructor Summary

Constructors

Constructor and Description
AbstractQueryBuilder()

Method Summary

Modifier and Type	Method and Description
IQueryBuilder	allQuery() Create a get all query
IQueryBuilder	and(IQuery... queries) Sets an AND between two queries
IQuery	build() Builds the IQuery from the given parameters
IQueryBuilder	column(EAttribute attribute) Sets the name of the column as EAttribute
protected abstract IQuery	createAllQuery() Creates an all query
protected abstract IQuery	createAndQuery(IQuery... queries) Creates an AND Query from two sub queries
protected abstract IQuery	createInQuery() Creates a query that matches a list of values
protected abstract IQuery	createOrQuery(IQuery... queries) Creates an OR Query from two sub queries
protected abstract IQuery	createRangeQuery() Creates a range query
protected abstract IQuery	createValueQuery() Creates a query that matches a value
IQueryBuilder	endValue(java.lang.Object endValue) Sets the end index
IQueryBuilder	endValue(java.lang.Object endValue, boolean include) Sets the end index
protected java.lang.String	getColumnName() Returns the name of the column name
protected java.lang.Object	getEndValue() Returns the end index
protected java.util.List<java.lang.Object>	getInValueList() Returns the inValueList
protected java.lang.Object	getObjectValue() Returns the name of the object value
protected IQuery[]	getOperatorQueries() Returns the InnerOperatorQuery or null
protected java.util.List<EStructuralFeature[]>	getProjectionFilter()
protected int	getQueryType() Returns the query type
protected java.lang.Object	getStartValue() Returns the start index
IQueryBuilder	in(java.util.List<java.lang.Object> valueList) Creates a in-query
IQueryBuilder	in(java.lang.Object... values) Creates a in-query
boolean	isIncludeEnd()
boolean	isIncludeStart()
IQueryBuilder	limit(long maxEntries) Limits the result set to the given values.
IQueryBuilder	or(IQuery... queries) Sets an OR between two queries
IQueryBuilder	projectionPath(EStructuralFeature... referencePath) Sets a reference path for the projection
IQueryBuilder	rangeQuery() Create a range query
IQueryBuilder	simpleValue(java.lang.Object value) Sets the value
IQueryBuilder	skip(long skipEntries) Limits the result set to start with given skip'th element.
IQueryBuilder	sort(EAttribute field, SortType sortType) Provides sorting for the given attribute
IQueryBuilder	startValue(java.lang.Object startValue) Sets the start index
IQueryBuilder	startValue(java.lang.Object startValue, boolean include) Sets the start index

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractQueryBuilder

public AbstractQueryBuilder()

Method Detail

sort

public IQueryBuilder sort(EAttribute field,
                          SortType sortType)

Description copied from interface: IQueryBuilder

Provides sorting for the given attribute

Specified by:

sort in interface IQueryBuilder

Parameters:

field - the attribute to be sorted

sortType - ASCENDING or DESCENDING

Returns:

the IQueryBuilder instance

limit

public IQueryBuilder limit(long maxEntries)

Description copied from interface: IQueryBuilder

Limits the result set to the given values. For values <= 0 the limit means all entries

Specified by:

limit in interface IQueryBuilder

Parameters:

maxEntries - the number of entries

Returns:

the IQueryBuilder instance

skip

public IQueryBuilder skip(long skipEntries)

Description copied from interface: IQueryBuilder

Limits the result set to start with given skip'th element. For values <= 0 the skip means all entries from index 0

Specified by:

skip in interface IQueryBuilder

Parameters:

skipEntries - the number of entries to skip

Returns:

the IQueryBuilder instance

allQuery

public IQueryBuilder allQuery()

Description copied from interface: IQueryBuilder

Create a get all query

Specified by:

allQuery in interface IQueryBuilder

Returns:

the IQueryBuilder instance

rangeQuery

public IQueryBuilder rangeQuery()

Description copied from interface: IQueryBuilder

Create a range query

Specified by:

rangeQuery in interface IQueryBuilder

Returns:

the IQueryBuilder instance

startValue

public IQueryBuilder startValue(java.lang.Object startValue)

Description copied from interface: IQueryBuilder

Sets the start index

Specified by:

startValue in interface IQueryBuilder

Parameters:

startValue - the start index

Returns:

the IQueryBuilder instance

startValue

public IQueryBuilder startValue(java.lang.Object startValue,
                                boolean include)

Description copied from interface: IQueryBuilder

Sets the start index

Specified by:

startValue in interface IQueryBuilder

Parameters:

startValue - the start index

include - should the value also be part of the range

Returns:

the IQueryBuilder instance

endValue

public IQueryBuilder endValue(java.lang.Object endValue)

Description copied from interface: IQueryBuilder

Sets the end index

Specified by:

endValue in interface IQueryBuilder

Parameters:

endValue - the end index

Returns:

the IQueryBuilder instance

endValue

public IQueryBuilder endValue(java.lang.Object endValue,
                              boolean include)

Description copied from interface: IQueryBuilder

Sets the end index

Specified by:

endValue in interface IQueryBuilder

Parameters:

endValue - the end index

include - should the value also be part of the range

Returns:

the IQueryBuilder instance

simpleValue

public IQueryBuilder simpleValue(java.lang.Object value)

Description copied from interface: IQueryBuilder

Sets the value

Specified by:

simpleValue in interface IQueryBuilder

Parameters:

value - the value of this attribute

Returns:

the IQueryBuilder instance

column

public IQueryBuilder column(EAttribute attribute)

Description copied from interface: IQueryBuilder

Sets the name of the column as EAttribute

Specified by:

column in interface IQueryBuilder

Parameters:

attribute - the column name to set

Returns:

the IQueryBuilder instance

and

public IQueryBuilder and(IQuery... queries)

Description copied from interface: IQueryBuilder

Sets an AND between two queries

Specified by:

and in interface IQueryBuilder

Parameters:

queries - the IQuery instances

Returns:

the IQueryBuilder instance

or

public IQueryBuilder or(IQuery... queries)

Description copied from interface: IQueryBuilder

Sets an OR between two queries

Specified by:

or in interface IQueryBuilder

Parameters:

queries - the IQuery instances

Returns:

the IQueryBuilder instance

in

public IQueryBuilder in(java.util.List<java.lang.Object> valueList)

Description copied from interface: IQueryBuilder

Creates a in-query

Specified by:

in in interface IQueryBuilder

Parameters:

valueList - list with values

Returns:

the IQueryBuilder instance

in

public IQueryBuilder in(java.lang.Object... values)

Description copied from interface: IQueryBuilder

Creates a in-query

Specified by:

in in interface IQueryBuilder

Parameters:

values - array with values

Returns:

the IQueryBuilder instance

build

public IQuery build()

Description copied from interface: IQueryBuilder

Builds the IQuery from the given parameters

Specified by:

build in interface IQueryBuilder

Returns:

the IQuery from the given parameters

getQueryType

protected int getQueryType()

Returns the query type

Returns:

the query type

getStartValue

protected java.lang.Object getStartValue()

Returns the start index

Returns:

the start index

getEndValue

protected java.lang.Object getEndValue()

Returns the end index

Returns:

the end index

getColumnName

protected java.lang.String getColumnName()

Returns the name of the column name

Returns:

the name of the column name

getInValueList

protected java.util.List<java.lang.Object> getInValueList()

Returns the inValueList

Returns:

the in value list

getObjectValue

protected java.lang.Object getObjectValue()

Returns the name of the object value

Returns:

the name of the object value

getOperatorQueries

protected IQuery[] getOperatorQueries()

Returns the InnerOperatorQuery or null

Returns:

the InnerOperatorQuery or null

isIncludeStart

public boolean isIncludeStart()

Returns:

the includeStart

isIncludeEnd

public boolean isIncludeEnd()

Returns:

the includeEnd

projectionPath

public IQueryBuilder projectionPath(EStructuralFeature... referencePath)

Description copied from interface: IQueryBuilder

Sets a reference path for the projection

Specified by:

projectionPath in interface IQueryBuilder

Returns:

the IQueryBuilder instance

getProjectionFilter

protected java.util.List<EStructuralFeature[]> getProjectionFilter()

Returns:

the projection filter

createRangeQuery

protected abstract IQuery createRangeQuery()

Creates a range query

Returns:

a range query

createAllQuery

protected abstract IQuery createAllQuery()

Creates an all query

Returns:

an all query

createAndQuery

protected abstract IQuery createAndQuery(IQuery... queries)

Creates an AND Query from two sub queries

Parameters:

queries - the IQuery instances

Returns:

an AND Query from two sub queries

createOrQuery

protected abstract IQuery createOrQuery(IQuery... queries)

Creates an OR Query from two sub queries

Parameters:

queries - the IQuery instances

Returns:

an OR Query from two sub queries

createValueQuery

protected abstract IQuery createValueQuery()

Creates a query that matches a value

Returns:

a query that matches a value

createInQuery

protected abstract IQuery createInQuery()

Creates a query that matches a list of values