Package org.epics.pvdata.factory

Class BasePVUnionArray

java.lang.Object

org.epics.pvdata.factory.AbstractPVField

org.epics.pvdata.factory.AbstractPVArray

org.epics.pvdata.factory.AbstractPVComplexArray

org.epics.pvdata.factory.BasePVUnionArray

All Implemented Interfaces:

PVArray, PVField, PVUnionArray, Serializable, SerializableArray

public class BasePVUnionArray
extends AbstractPVComplexArray
implements PVUnionArray

Base class for implementing PVUnionArray.

Author:

mse

Field Summary

Fields

Modifier and Type	Field	Description
protected UnionArray	unionArray
protected PVUnion[]	value

Fields inherited from class org.epics.pvdata.factory.AbstractPVArray

capacity, capacityMutable, length

Fields inherited from class org.epics.pvdata.factory.AbstractPVField

convert

Constructor Summary

Constructors

Constructor	Description
BasePVUnionArray(UnionArray unionArray)	Constructor.

Method Summary

Modifier and Type	Method	Description
protected void	allocate(int newCapacity)
protected Serializable	createNewInstance()
int	get(int offset, int len, UnionArrayData data)	Get values from a PVUnionArray and put them into PVUnion[]to.
protected Serializable	getAt(int index)
UnionArray	getUnionArray()	Get the introspection interface.
protected Object	getValue()
int	hashCode()
int	put(int offset, int len, PVUnion[] from, int fromOffset)	Put values into a PVUnionArray from PVUnion[]from
protected void	setAt(int index, Serializable obj)
protected void	setValue(Object array)
void	shareData(PVUnion[] from)	Share the data from caller.
protected boolean	valueEquals(Object obj)

Methods inherited from class org.epics.pvdata.factory.AbstractPVComplexArray

deserialize, serialize

Methods inherited from class org.epics.pvdata.factory.AbstractPVArray

equals, getArray, getCapacity, getLength, internalGet, internalPut, internalShareData, isCapacityMutable, put, serialize, setCapacity, setCapacityMutable, setImmutable, setLength

Methods inherited from class org.epics.pvdata.factory.AbstractPVField

changeField, getField, getFieldName, getFieldOffset, getFullName, getNextFieldOffset, getNumberFields, getParent, isImmutable, postPut, setData, setPostHandler, toString, toString, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.epics.pvdata.pv.PVArray

getArray, getCapacity, getLength, isCapacityMutable, setCapacity, setCapacityMutable, setLength

Methods inherited from interface org.epics.pvdata.pv.PVField

getField, getFieldName, getFieldOffset, getFullName, getNextFieldOffset, getNumberFields, getParent, isImmutable, postPut, setImmutable, setPostHandler, toString, toString, toString

Methods inherited from interface org.epics.pvdata.pv.Serializable

deserialize, serialize

Methods inherited from interface org.epics.pvdata.pv.SerializableArray

serialize

Field Detail

value

protected PVUnion[] value

unionArray

protected UnionArray unionArray

Constructor Detail

BasePVUnionArray

public BasePVUnionArray(UnionArray unionArray)

Constructor.

Parameters:

unionArray - The Introspection interface.

Method Detail

getUnionArray

public UnionArray getUnionArray()

Description copied from interface: PVUnionArray

Get the introspection interface.

Specified by:

getUnionArray in interface PVUnionArray

Returns:

The interface.

allocate

protected void allocate(int newCapacity)

Specified by:

allocate in class AbstractPVArray

getValue

protected Object getValue()

Specified by:

getValue in class AbstractPVArray

setValue

protected void setValue(Object array)

Specified by:

setValue in class AbstractPVArray

get

public int get(int offset,
               int len,
               UnionArrayData data)

Description copied from interface: PVUnionArray

Get values from a PVUnionArray and put them into PVUnion[]to.

Specified by:

get in interface PVUnionArray

Parameters:

offset - the offset to the first element to get

len - the maximum number of elements to transfer

data - the class containing the data and an offset into the data. Get sets these values. The caller must do the actual data transfer.

Returns:

the number of elements that can be transfered. This is always less than or equal to length. If the value is less then length then get should be called again. If the return value is greater than 0 then data.data is a reference to the array and data.offset is the offset into the array.

put

public int put(int offset,
               int len,
               PVUnion[] from,
               int fromOffset)

Description copied from interface: PVUnionArray

Put values into a PVUnionArray from PVUnion[]from

Specified by:

put in interface PVUnionArray

Parameters:

offset - the offset to the first element to put

len - the maximum number of elements to transfer

from - the array from which to get the data.

fromOffset - the offset into from

Returns:

the number of elements transfered. This is always less than or equal to length. If the value is less than the length then put should be called again.

shareData

public void shareData(PVUnion[] from)

Description copied from interface: PVUnionArray

Share the data from caller. The capacity and length are taken from the array and this array is made immutable. This should only be used to share immutable data.

Specified by:

shareData in interface PVUnionArray

Parameters:

from - the data to share

valueEquals

protected boolean valueEquals(Object obj)

Specified by:

valueEquals in class AbstractPVArray

getAt

protected Serializable getAt(int index)

Specified by:

getAt in class AbstractPVComplexArray

setAt

protected void setAt(int index,
                     Serializable obj)

Specified by:

setAt in class AbstractPVComplexArray

createNewInstance

protected Serializable createNewInstance()

Specified by:

createNewInstance in class AbstractPVComplexArray

hashCode

public int hashCode()

Overrides:

hashCode in class Object