Package org.primefaces.model
Class LazyDataModel<T>
- java.lang.Object
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- javax.faces.model.DataModel<E>
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- javax.faces.model.ListDataModel<T>
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- org.primefaces.model.LazyDataModel<T>
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- All Implemented Interfaces:
Serializable
,Iterable<T>
,SelectableDataModel<T>
public abstract class LazyDataModel<T> extends javax.faces.model.ListDataModel<T> implements SelectableDataModel<T>, Serializable
Lazy loading DataModel to deal with huge datasets- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description LazyDataModel()
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description int
getPageSize()
int
getRowCount()
T
getRowData(String rowKey)
String
getRowKey(T object)
List<T>
getWrappedData()
Iterator<T>
iterator()
Iterator<T>
iterator(Map<String,SortMeta> sortBy, Map<String,FilterMeta> filterBy)
abstract List<T>
load(int first, int pageSize, Map<String,SortMeta> sortBy, Map<String,FilterMeta> filterBy)
Loads the data for the given parameters.void
setPageSize(int pageSize)
void
setRowCount(int rowCount)
void
setRowIndex(int rowIndex)
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Methods inherited from class javax.faces.model.ListDataModel
getRowData, getRowIndex, isRowAvailable, setWrappedData
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Methods inherited from class javax.faces.model.DataModel
addDataModelListener, getDataModelListeners, removeDataModelListener
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface java.lang.Iterable
forEach, spliterator
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Method Detail
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load
public abstract List<T> load(int first, int pageSize, Map<String,SortMeta> sortBy, Map<String,FilterMeta> filterBy)
Loads the data for the given parameters.- Parameters:
first
- the first entrypageSize
- the page sizesortBy
- a list with all sort informationfilterBy
- a map with all filter information- Returns:
- the data
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getRowData
public T getRowData(String rowKey)
- Specified by:
getRowData
in interfaceSelectableDataModel<T>
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getRowKey
public String getRowKey(T object)
- Specified by:
getRowKey
in interfaceSelectableDataModel<T>
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iterator
public Iterator<T> iterator(Map<String,SortMeta> sortBy, Map<String,FilterMeta> filterBy)
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getRowCount
public int getRowCount()
- Overrides:
getRowCount
in classjavax.faces.model.ListDataModel<T>
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setRowIndex
public void setRowIndex(int rowIndex)
- Overrides:
setRowIndex
in classjavax.faces.model.ListDataModel<T>
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getWrappedData
public List<T> getWrappedData()
- Overrides:
getWrappedData
in classjavax.faces.model.ListDataModel<T>
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getPageSize
public int getPageSize()
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setPageSize
public void setPageSize(int pageSize)
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setRowCount
public void setRowCount(int rowCount)
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